Merge branch 'master' into fix-dailywire

.github/PULL_REQUEST_TEMPLATE.md

@@ -28,7 +28,6 @@ # PLEASE FOLLOW THE GUIDE BELOW
 ### Before submitting a *pull request* make sure you have:
 - [ ] At least skimmed through [contributing guidelines](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#developer-instructions) including [yt-dlp coding conventions](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#yt-dlp-coding-conventions)
 - [ ] [Searched](https://github.com/yt-dlp/yt-dlp/search?q=is%3Apr&type=Issues) the bugtracker for similar pull requests
-- [ ] Checked the code with [flake8](https://pypi.python.org/pypi/flake8) and [ran relevant tests](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#developer-instructions)
 
 ### In order to be accepted and merged into yt-dlp each piece of code must be in public domain or released under [Unlicense](http://unlicense.org/). Check all of the following options that apply:
 - [ ] I am the original author of this code and I am willing to release it under [Unlicense](http://unlicense.org/)

.github/workflows/build.yml

@@ -237,7 +237,7 @@ jobs:
   macos:
     needs: process
     if: inputs.macos
-    runs-on: macos-11
+    runs-on: macos-12
 
     steps:
       - uses: actions/checkout@v4
@@ -260,11 +260,23 @@ jobs:
               --pre -d curl_cffi_whls \
               -r requirements.txt
           done
+          ( # Overwrite x86_64-only libs with fat/universal2 libs or else Pyinstaller will do the opposite
+            # See https://github.com/yt-dlp/yt-dlp/pull/10069
+            cd curl_cffi_whls
+            mkdir -p curl_cffi/.dylibs
+            python_libdir=$(python3 -c 'import sys; from pathlib import Path; print(Path(sys.path[1]).parent)')
+            for dylib in lib{ssl,crypto}.3.dylib; do
+              cp "${python_libdir}/${dylib}" "curl_cffi/.dylibs/${dylib}"
+              for wheel in curl_cffi*macos*x86_64.whl; do
+                zip "${wheel}" "curl_cffi/.dylibs/${dylib}"
+              done
+            done
+          )
           python3 -m delocate.cmd.delocate_fuse curl_cffi_whls/curl_cffi*.whl -w curl_cffi_universal2
           python3 -m delocate.cmd.delocate_fuse curl_cffi_whls/cffi*.whl -w curl_cffi_universal2
           cd curl_cffi_universal2
-          for wheel in *cffi*.whl; do mv -n -- "${wheel}" "${wheel/x86_64/universal2}"; done
+          for wheel in ./*cffi*.whl; do mv -n -- "${wheel}" "${wheel/x86_64/universal2}"; done
-          python3 -m pip install -U --user *cffi*.whl
+          python3 -m pip install -U --user ./*cffi*.whl
 
       - name: Prepare
         run: |
@@ -311,7 +323,7 @@ jobs:
           # Hack to get the latest patch version. Uncomment if needed
           #brew install python@3.10
           #export PYTHON_VERSION=$( $(brew --prefix)/opt/python@3.10/bin/python3 --version | cut -d ' ' -f 2 )
-          curl https://www.python.org/ftp/python/${PYTHON_VERSION}/python-${PYTHON_VERSION}-macos11.pkg -o "python.pkg"
+          curl "https://www.python.org/ftp/python/${PYTHON_VERSION}/python-${PYTHON_VERSION}-macos11.pkg" -o "python.pkg"
           sudo installer -pkg python.pkg -target /
           python3 --version
       - name: Install Requirements
@@ -360,8 +372,8 @@ jobs:
       - name: Install Requirements
         run: | # Custom pyinstaller built with https://github.com/yt-dlp/pyinstaller-builds
           python devscripts/install_deps.py -o --include build
-          python devscripts/install_deps.py --include py2exe --include curl-cffi
+          python devscripts/install_deps.py --include curl-cffi
-          python -m pip install -U "https://yt-dlp.github.io/Pyinstaller-Builds/x86_64/pyinstaller-5.8.0-py3-none-any.whl"
+          python -m pip install -U "https://yt-dlp.github.io/Pyinstaller-Builds/x86_64/pyinstaller-6.7.0-py3-none-any.whl"
 
       - name: Prepare
         run: |
@@ -369,12 +381,20 @@ jobs:
           python devscripts/make_lazy_extractors.py
       - name: Build
         run: |
-          python -m bundle.py2exe
-          Move-Item ./dist/yt-dlp.exe ./dist/yt-dlp_min.exe
           python -m bundle.pyinstaller
           python -m bundle.pyinstaller --onedir
+          Move-Item ./dist/yt-dlp.exe ./dist/yt-dlp_real.exe
           Compress-Archive -Path ./dist/yt-dlp/* -DestinationPath ./dist/yt-dlp_win.zip
 
+      - name: Install Requirements (py2exe)
+        run: |
+          python devscripts/install_deps.py --include py2exe
+      - name: Build (py2exe)
+        run: |
+          python -m bundle.py2exe
+          Move-Item ./dist/yt-dlp.exe ./dist/yt-dlp_min.exe
+          Move-Item ./dist/yt-dlp_real.exe ./dist/yt-dlp.exe
+
       - name: Verify --update-to
         if: vars.UPDATE_TO_VERIFICATION
         run: |
@@ -413,7 +433,7 @@ jobs:
         run: |
           python devscripts/install_deps.py -o --include build
           python devscripts/install_deps.py
-          python -m pip install -U "https://yt-dlp.github.io/Pyinstaller-Builds/i686/pyinstaller-5.8.0-py3-none-any.whl"
+          python -m pip install -U "https://yt-dlp.github.io/Pyinstaller-Builds/i686/pyinstaller-6.7.0-py3-none-any.whl"
 
       - name: Prepare
         run: |
@@ -467,8 +487,8 @@ jobs:
         run: |
           cd ./artifact/
           # make sure SHA sums are also printed to stdout
-          sha256sum * | tee ../SHA2-256SUMS
+          sha256sum -- * | tee ../SHA2-256SUMS
-          sha512sum * | tee ../SHA2-512SUMS
+          sha512sum -- * | tee ../SHA2-512SUMS
 
       - name: Make Update spec
         run: |

.github/workflows/core.yml

@@ -53,7 +53,7 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install test requirements
-      run: python3 ./devscripts/install_deps.py --include dev --include curl-cffi
+      run: python3 ./devscripts/install_deps.py --include test --include curl-cffi
     - name: Run tests
       continue-on-error: False
       run: |

.github/workflows/quick-test.yml

@@ -15,13 +15,13 @@ jobs:
       with:
         python-version: '3.8'
     - name: Install test requirements
-      run: python3 ./devscripts/install_deps.py --include dev
+      run: python3 ./devscripts/install_deps.py --include test
     - name: Run tests
       run: |
         python3 -m yt_dlp -v || true
         python3 ./devscripts/run_tests.py core
-  flake8:
+  check:
-    name: Linter
+    name: Code check
     if: "!contains(github.event.head_commit.message, 'ci skip all')"
     runs-on: ubuntu-latest
     steps:
@@ -29,9 +29,11 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: '3.8'
-    - name: Install flake8
+    - name: Install dev dependencies
-      run: python3 ./devscripts/install_deps.py -o --include dev
+      run: python3 ./devscripts/install_deps.py -o --include static-analysis
     - name: Make lazy extractors
       run: python3 ./devscripts/make_lazy_extractors.py
-    - name: Run flake8
+    - name: Run ruff
-      run: flake8 .
+      run: ruff check --output-format github .
+    - name: Run autopep8
+      run: autopep8 --diff .

.gitignore

@@ -67,7 +67,7 @@ cookies
 # Python
 *.pyc
 *.pyo
-.pytest_cache
+.*_cache
 wine-py2exe/
 py2exe.log
 build/

.pre-commit-config.yaml

@@ -0,0 +1,14 @@
+repos:
+- repo: local
+  hooks:
+  - id: linter
+    name: Apply linter fixes
+    entry: ruff check --fix .
+    language: system
+    types: [python]
+    require_serial: true
+  - id: format
+    name: Apply formatting fixes
+    entry: autopep8 --in-place .
+    language: system
+    types: [python]

.pre-commit-hatch.yaml

@@ -0,0 +1,9 @@
+repos:
+- repo: local
+  hooks:
+  - id: fix
+    name: Apply code fixes
+    entry: hatch fmt
+    language: system
+    types: [python]
+    require_serial: true

CONTRIBUTING.md

@@ -134,18 +134,53 @@ ### Is the website primarily used for piracy?
 
 # DEVELOPER INSTRUCTIONS
 
-Most users do not need to build yt-dlp and can [download the builds](https://github.com/yt-dlp/yt-dlp/releases) or get them via [the other installation methods](README.md#installation).
+Most users do not need to build yt-dlp and can [download the builds](https://github.com/yt-dlp/yt-dlp/releases), get them via [the other installation methods](README.md#installation) or directly run it using `python -m yt_dlp`.
 
-To run yt-dlp as a developer, you don't need to build anything either. Simply execute
+`yt-dlp` uses [`hatch`](<https://hatch.pypa.io>) as a project management tool.
+You can easily install it using [`pipx`](<https://pipx.pypa.io>) via `pipx install hatch`, or else via `pip` or your package manager of choice. Make sure you are using at least version `1.10.0`, otherwise some functionality might not work as expected.
 
-    python3 -m yt_dlp
+If you plan on contributing to `yt-dlp`, best practice is to start by running the following command:
 
-To run all the available core tests, use:
+```shell
+$ hatch run setup
+```
 
-    python3 devscripts/run_tests.py
+The above command will install a `pre-commit` hook so that required checks/fixes (linting, formatting) will run automatically before each commit. If any code needs to be linted or formatted, then the commit will be blocked and the necessary changes will be made; you should review all edits and re-commit the fixed version.
+
+After this you can use `hatch shell` to enable a virtual environment that has `yt-dlp` and its development dependencies installed.
+
+In addition, the following script commands can be used to run simple tasks such as linting or testing (without having to run `hatch shell` first):
+* `hatch fmt`: Automatically fix linter violations and apply required code formatting changes
+    * See `hatch fmt --help` for more info
+* `hatch test`: Run extractor or core tests
+    * See `hatch test --help` for more info
 
 See item 6 of [new extractor tutorial](#adding-support-for-a-new-site) for how to run extractor specific test cases.
 
+While it is strongly recommended to use `hatch` for yt-dlp development, if you are unable to do so, alternatively you can manually create a virtual environment and use the following commands:
+
+```shell
+# To only install development dependencies:
+$ python -m devscripts.install_deps --include dev
+
+# Or, for an editable install plus dev dependencies:
+$ python -m pip install -e ".[default,dev]"
+
+# To setup the pre-commit hook:
+$ pre-commit install
+
+# To be used in place of `hatch test`:
+$ python -m devscripts.run_tests
+
+# To be used in place of `hatch fmt`:
+$ ruff check --fix .
+$ autopep8 --in-place .
+
+# To only check code instead of applying fixes:
+$ ruff check .
+$ autopep8 --diff .
+```
+
 If you want to create a build of yt-dlp yourself, you can follow the instructions [here](README.md#compile).
 
 
@@ -165,12 +200,16 @@ ## Adding support for a new site
 1. [Fork this repository](https://github.com/yt-dlp/yt-dlp/fork)
 1. Check out the source code with:
 
-        git clone git@github.com:YOUR_GITHUB_USERNAME/yt-dlp.git
+    ```shell
+    $ git clone git@github.com:YOUR_GITHUB_USERNAME/yt-dlp.git
+    ```
 
 1. Start a new git branch with
 
-        cd yt-dlp
+    ```shell
-        git checkout -b yourextractor
+    $ cd yt-dlp
+    $ git checkout -b yourextractor
+    ```
 
 1. Start with this simple template and save it to `yt_dlp/extractor/yourextractor.py`:
 
@@ -217,21 +256,27 @@ ## Adding support for a new site
                 # TODO more properties (see yt_dlp/extractor/common.py)
             }
     ```
-1. Add an import in [`yt_dlp/extractor/_extractors.py`](yt_dlp/extractor/_extractors.py). Note that the class name must end with `IE`.
+1. Add an import in [`yt_dlp/extractor/_extractors.py`](yt_dlp/extractor/_extractors.py). Note that the class name must end with `IE`. Also note that when adding a parenthesized import group, the last import in the group must have a trailing comma in order for this formatting to be respected by our code formatter.
-1. Run `python3 devscripts/run_tests.py YourExtractor`. This *may fail* at first, but you can continually re-run it until you're done. Upon failure, it will output the missing fields and/or correct values which you can copy. If you decide to add more than one test, the tests will then be named `YourExtractor`, `YourExtractor_1`, `YourExtractor_2`, etc. Note that tests with an `only_matching` key in the test's dict are not included in the count. You can also run all the tests in one go with `YourExtractor_all`
+1. Run `hatch test YourExtractor`. This *may fail* at first, but you can continually re-run it until you're done. Upon failure, it will output the missing fields and/or correct values which you can copy. If you decide to add more than one test, the tests will then be named `YourExtractor`, `YourExtractor_1`, `YourExtractor_2`, etc. Note that tests with an `only_matching` key in the test's dict are not included in the count. You can also run all the tests in one go with `YourExtractor_all`
 1. Make sure you have at least one test for your extractor. Even if all videos covered by the extractor are expected to be inaccessible for automated testing, tests should still be added with a `skip` parameter indicating why the particular test is disabled from running.
 1. Have a look at [`yt_dlp/extractor/common.py`](yt_dlp/extractor/common.py) for possible helper methods and a [detailed description of what your extractor should and may return](yt_dlp/extractor/common.py#L119-L440). Add tests and code for as many as you want.
-1. Make sure your code follows [yt-dlp coding conventions](#yt-dlp-coding-conventions) and check the code with [flake8](https://flake8.pycqa.org/en/latest/index.html#quickstart):
+1. Make sure your code follows [yt-dlp coding conventions](#yt-dlp-coding-conventions), passes [ruff](https://docs.astral.sh/ruff/tutorial/#getting-started) code checks and is properly formatted:
 
-        $ flake8 yt_dlp/extractor/yourextractor.py
+    ```shell
+    $ hatch fmt --check
+    ```
+
+    You can use `hatch fmt` to automatically fix problems. Rules that the linter/formatter enforces should not be disabled with `# noqa` unless a maintainer requests it. The only exception allowed is for old/printf-style string formatting in GraphQL query templates (use `# noqa: UP031`).
 
 1. Make sure your code works under all [Python](https://www.python.org/) versions supported by yt-dlp, namely CPython and PyPy for Python 3.8 and above. Backward compatibility is not required for even older versions of Python.
 1. When the tests pass, [add](https://git-scm.com/docs/git-add) the new files, [commit](https://git-scm.com/docs/git-commit) them and [push](https://git-scm.com/docs/git-push) the result, like this:
 
-        $ git add yt_dlp/extractor/_extractors.py
+    ```shell
-        $ git add yt_dlp/extractor/yourextractor.py
+    $ git add yt_dlp/extractor/_extractors.py
-        $ git commit -m '[yourextractor] Add extractor'
+    $ git add yt_dlp/extractor/yourextractor.py
-        $ git push origin yourextractor
+    $ git commit -m '[yourextractor] Add extractor'
+    $ git push origin yourextractor
+    ```
 
 1. Finally, [create a pull request](https://help.github.com/articles/creating-a-pull-request). We'll then review and merge it.
 

CONTRIBUTORS

@@ -610,3 +610,24 @@ Offert4324
 sta1us
 Tomoka1
 trwstin
+alexhuot1
+clienthax
+DaPotato69
+emqi
+hugohaa
+imanoreotwe
+JakeFinley96
+lostfictions
+minamotorin
+ocococococ
+Podiumnoche
+RasmusAntons
+roeniss
+shoxie007
+Szpachlarz
+The-MAGI
+TuxCoder
+voidful
+vtexier
+WyohKnott
+trueauracoral

Changelog.md

@@ -4,6 +4,127 @@ # Changelog
 # To create a release, dispatch the https://github.com/yt-dlp/yt-dlp/actions/workflows/release.yml workflow on master
 -->
 
+### 2024.05.27
+
+#### Extractor changes
+- [Fix parsing of base URL in SMIL manifest](https://github.com/yt-dlp/yt-dlp/commit/26603d0b34898818992bee4598e0607c07059511) ([#9225](https://github.com/yt-dlp/yt-dlp/issues/9225)) by [seproDev](https://github.com/seproDev)
+- **peertube**: [Support livestreams](https://github.com/yt-dlp/yt-dlp/commit/12b248ce60be1aa1362edd839d915bba70dbee4b) ([#10044](https://github.com/yt-dlp/yt-dlp/issues/10044)) by [bashonly](https://github.com/bashonly), [trueauracoral](https://github.com/trueauracoral)
+- **piksel**: [Update domain](https://github.com/yt-dlp/yt-dlp/commit/ae2194e1dd4a99d32eb3cab7c48a0ff03101ef3b) ([#9223](https://github.com/yt-dlp/yt-dlp/issues/9223)) by [seproDev](https://github.com/seproDev)
+- **tiktok**: user: [Fix extraction loop](https://github.com/yt-dlp/yt-dlp/commit/c53c2e40fde8f2e15c7c62f8ca1a5d9e90ddc079) ([#10035](https://github.com/yt-dlp/yt-dlp/issues/10035)) by [bashonly](https://github.com/bashonly)
+
+#### Misc. changes
+- **cleanup**: Miscellaneous: [5e3e19c](https://github.com/yt-dlp/yt-dlp/commit/5e3e19c93c52830da98d9d1ed84ea7a559efefbd) by [bashonly](https://github.com/bashonly)
+
+### 2024.05.26
+
+#### Core changes
+- [Better warning when requested subs format not found](https://github.com/yt-dlp/yt-dlp/commit/7e4259dff0b681a3f0e8a930799ce0394328c86e) ([#9873](https://github.com/yt-dlp/yt-dlp/issues/9873)) by [DaPotato69](https://github.com/DaPotato69)
+- [Merged with youtube-dl a08f2b7](https://github.com/yt-dlp/yt-dlp/commit/a4da9db87b6486b270c15dfa07ab5bfedc83f6bd) by [bashonly](https://github.com/bashonly), [Grub4K](https://github.com/Grub4K)
+- [Warn if lack of ffmpeg alters format selection](https://github.com/yt-dlp/yt-dlp/commit/96da9525043f78aca4544d01761b13b2140e9ae6) ([#9805](https://github.com/yt-dlp/yt-dlp/issues/9805)) by [pukkandan](https://github.com/pukkandan), [seproDev](https://github.com/seproDev)
+- **cookies**
+    - [Add `--cookies-from-browser` support for Whale](https://github.com/yt-dlp/yt-dlp/commit/dd9ad97b1fbdd36c086b8ba82328a4d954f78f8e) ([#9649](https://github.com/yt-dlp/yt-dlp/issues/9649)) by [roeniss](https://github.com/roeniss)
+    - [Get chrome session cookies with `--cookies-from-browser`](https://github.com/yt-dlp/yt-dlp/commit/f1f158976e38d38a260762accafe7bbe6d451151) ([#9747](https://github.com/yt-dlp/yt-dlp/issues/9747)) by [StefanLobbenmeier](https://github.com/StefanLobbenmeier)
+- **windows**: [Improve shell quoting and tests](https://github.com/yt-dlp/yt-dlp/commit/64766459e37451b665c1464073c28361fbcf1c25) ([#9802](https://github.com/yt-dlp/yt-dlp/issues/9802)) by [Grub4K](https://github.com/Grub4K) (With fixes in [7e26bd5](https://github.com/yt-dlp/yt-dlp/commit/7e26bd53f9c5893518fde81dfd0079ec08dd841e))
+
+#### Extractor changes
+- [Add POST data hash to `--write-pages` filenames](https://github.com/yt-dlp/yt-dlp/commit/61b17437dc14a1c7e90ff48a6198df77828c6df4) ([#9879](https://github.com/yt-dlp/yt-dlp/issues/9879)) by [minamotorin](https://github.com/minamotorin) (With fixes in [c999bac](https://github.com/yt-dlp/yt-dlp/commit/c999bac02c5a4f755b2a82488a975e91c988ffd8) by [bashonly](https://github.com/bashonly))
+- [Make `_search_nextjs_data` non fatal](https://github.com/yt-dlp/yt-dlp/commit/3ee1194288981c4f2c4abd8315326de0c424d2ce) ([#8937](https://github.com/yt-dlp/yt-dlp/issues/8937)) by [Grub4K](https://github.com/Grub4K)
+- **afreecatv**: live: [Add `cdn` extractor-arg](https://github.com/yt-dlp/yt-dlp/commit/315b3544296bb83012e20ee3af9d3cbf5600dd1c) ([#9666](https://github.com/yt-dlp/yt-dlp/issues/9666)) by [bashonly](https://github.com/bashonly)
+- **alura**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/fc2879ecb05aaad36869609d154e4321362c1f63) ([#9658](https://github.com/yt-dlp/yt-dlp/issues/9658)) by [hugohaa](https://github.com/hugohaa)
+- **artetv**: [Label forced subtitles](https://github.com/yt-dlp/yt-dlp/commit/7b5674949fd03a33b47b67b31d56a5adf1c48c91) ([#9945](https://github.com/yt-dlp/yt-dlp/issues/9945)) by [vtexier](https://github.com/vtexier)
+- **bbc**: [Fix and extend extraction](https://github.com/yt-dlp/yt-dlp/commit/7975ddf245d22af034d5b983eeb1c5ec6c2ce053) ([#9705](https://github.com/yt-dlp/yt-dlp/issues/9705)) by [dirkf](https://github.com/dirkf), [kylegustavo](https://github.com/kylegustavo), [pukkandan](https://github.com/pukkandan)
+- **bilibili**: [Fix `--geo-verification-proxy` support](https://github.com/yt-dlp/yt-dlp/commit/2338827072dacab0f15348b70aec8685feefc8d1) ([#9817](https://github.com/yt-dlp/yt-dlp/issues/9817)) by [fireattack](https://github.com/fireattack)
+- **bilibilispacevideo**
+    - [Better error message](https://github.com/yt-dlp/yt-dlp/commit/06d52c87314e0bbc16c43c405090843885577b88) ([#9839](https://github.com/yt-dlp/yt-dlp/issues/9839)) by [fireattack](https://github.com/fireattack)
+    - [Fix extraction](https://github.com/yt-dlp/yt-dlp/commit/4cc99d7b6cce8b39506ead01407445d576b63ee4) ([#9905](https://github.com/yt-dlp/yt-dlp/issues/9905)) by [c-basalt](https://github.com/c-basalt)
+- **boosty**: [Add cookies support](https://github.com/yt-dlp/yt-dlp/commit/145dc6f6563e80d2da1b3e9aea2ffa795b71622c) ([#9522](https://github.com/yt-dlp/yt-dlp/issues/9522)) by [RasmusAntons](https://github.com/RasmusAntons)
+- **brilliantpala**: [Fix login](https://github.com/yt-dlp/yt-dlp/commit/eead3bbc01f6529862bdad1f0b2adeabda4f006e) ([#9788](https://github.com/yt-dlp/yt-dlp/issues/9788)) by [pzhlkj6612](https://github.com/pzhlkj6612)
+- **canalalpha**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/00a9f2e1f7fa69499221f2e8dd73a08efeef79bc) ([#9675](https://github.com/yt-dlp/yt-dlp/issues/9675)) by [kclauhk](https://github.com/kclauhk)
+- **cbc.ca**: player: [Improve `_VALID_URL`](https://github.com/yt-dlp/yt-dlp/commit/c8bf48f3a8fa29587e7c73ef5a7710385a5ea725) ([#9866](https://github.com/yt-dlp/yt-dlp/issues/9866)) by [carusocr](https://github.com/carusocr)
+- **cda**: [Fix age-gated web extraction](https://github.com/yt-dlp/yt-dlp/commit/6d8a53d870ff6795f509085bfbf3981417999038) ([#9939](https://github.com/yt-dlp/yt-dlp/issues/9939)) by [dirkf](https://github.com/dirkf), [emqi](https://github.com/emqi), [Podiumnoche](https://github.com/Podiumnoche), [Szpachlarz](https://github.com/Szpachlarz)
+- **commonmistakes**: [Raise error on blob URLs](https://github.com/yt-dlp/yt-dlp/commit/98d71d8c5e5dab08b561ee6f137e968d2a004262) ([#9897](https://github.com/yt-dlp/yt-dlp/issues/9897)) by [seproDev](https://github.com/seproDev)
+- **crunchyroll**
+    - [Always make metadata available](https://github.com/yt-dlp/yt-dlp/commit/cb2fb4a643949322adba561ca73bcba3221ec0c5) ([#9772](https://github.com/yt-dlp/yt-dlp/issues/9772)) by [bashonly](https://github.com/bashonly)
+    - [Fix auth and remove cookies support](https://github.com/yt-dlp/yt-dlp/commit/ff38a011d57b763f3a69bebd25a5dc9044a717ce) ([#9749](https://github.com/yt-dlp/yt-dlp/issues/9749)) by [bashonly](https://github.com/bashonly)
+    - [Fix stream extraction](https://github.com/yt-dlp/yt-dlp/commit/f2816634e3be88fe158b342ee33918de3c272a54) ([#10005](https://github.com/yt-dlp/yt-dlp/issues/10005)) by [bashonly](https://github.com/bashonly)
+    - [Support browser impersonation](https://github.com/yt-dlp/yt-dlp/commit/5904853ae5788509fdc4892cb7ecdfa9ae7f78e6) ([#9857](https://github.com/yt-dlp/yt-dlp/issues/9857)) by [bashonly](https://github.com/bashonly)
+- **dangalplay**: [Add extractors](https://github.com/yt-dlp/yt-dlp/commit/0d067e77c3f5527946fb0c22ee1c7011994cba40) ([#10021](https://github.com/yt-dlp/yt-dlp/issues/10021)) by [bashonly](https://github.com/bashonly)
+- **discoveryplus**: [Fix dmax.de and related extractors](https://github.com/yt-dlp/yt-dlp/commit/90d2da311bbb5dc06f385ee428c7e4590936e995) ([#10020](https://github.com/yt-dlp/yt-dlp/issues/10020)) by [bashonly](https://github.com/bashonly)
+- **eplus**: [Handle URLs without videos](https://github.com/yt-dlp/yt-dlp/commit/351dc0bc334c4e1b5f00c152818c3ec0ed71f788) ([#9855](https://github.com/yt-dlp/yt-dlp/issues/9855)) by [pzhlkj6612](https://github.com/pzhlkj6612)
+- **europarlwebstream**: [Support new URL format](https://github.com/yt-dlp/yt-dlp/commit/800a43983e5fb719526ce4cb3956216085c63268) ([#9647](https://github.com/yt-dlp/yt-dlp/issues/9647)) by [seproDev](https://github.com/seproDev), [voidful](https://github.com/voidful)
+- **facebook**: [Fix DASH formats extraction](https://github.com/yt-dlp/yt-dlp/commit/e3b42d8b1b8bcfff7ba146c19fc3f6f6ba843cea) ([#9734](https://github.com/yt-dlp/yt-dlp/issues/9734)) by [bashonly](https://github.com/bashonly)
+- **godresource**: [Add extractor](https://github.com/yt-dlp/yt-dlp/commit/65e709d23530959075816e966c42179ad46e8e3b) ([#9629](https://github.com/yt-dlp/yt-dlp/issues/9629)) by [HobbyistDev](https://github.com/HobbyistDev)
+- **googledrive**: [Fix formats extraction](https://github.com/yt-dlp/yt-dlp/commit/85ec2a337ac325cf6427cbafd56f0a034c1a5218) ([#9908](https://github.com/yt-dlp/yt-dlp/issues/9908)) by [WyohKnott](https://github.com/WyohKnott)
+- **hearthisat**: [Improve `_VALID_URL`](https://github.com/yt-dlp/yt-dlp/commit/5bbfdb7c999b22f1aeca0c3489c167d6eb73013b) ([#9949](https://github.com/yt-dlp/yt-dlp/issues/9949)) by [bohwaz](https://github.com/bohwaz), [seproDev](https://github.com/seproDev)
+- **hytale**: [Use `CloudflareStreamIE` explicitly](https://github.com/yt-dlp/yt-dlp/commit/31b417e1d1ccc67d5c027bf8878f483dc34cb118) ([#9672](https://github.com/yt-dlp/yt-dlp/issues/9672)) by [llamasblade](https://github.com/llamasblade)
+- **instagram**: [Support `/reels/` URLs](https://github.com/yt-dlp/yt-dlp/commit/06cb0638392b607b47d3c2ac48eb2ebecb0f060d) ([#9539](https://github.com/yt-dlp/yt-dlp/issues/9539)) by [amir16yp](https://github.com/amir16yp)
+- **jiocinema**: [Add extractors](https://github.com/yt-dlp/yt-dlp/commit/1463945ae5fb05986a0bd1aa02e41d1a08d93a02) ([#10026](https://github.com/yt-dlp/yt-dlp/issues/10026)) by [bashonly](https://github.com/bashonly)
+- **jiosaavn**: [Extract via API and fix playlists](https://github.com/yt-dlp/yt-dlp/commit/0c21c53885cf03f4040467ae8c44d7ff51016116) ([#9656](https://github.com/yt-dlp/yt-dlp/issues/9656)) by [bashonly](https://github.com/bashonly)
+- **lci**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/5a2eebc76770fca91ffabeff658d560f716fec80) ([#10025](https://github.com/yt-dlp/yt-dlp/issues/10025)) by [ocococococ](https://github.com/ocococococ)
+- **mixch**: [Extract comments](https://github.com/yt-dlp/yt-dlp/commit/b38018b781b062d5169d104ab430489aef8e7f1e) ([#9860](https://github.com/yt-dlp/yt-dlp/issues/9860)) by [pzhlkj6612](https://github.com/pzhlkj6612)
+- **moviepilot**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/296df0da1d38a44d34c99b60a18066c301774537) ([#9366](https://github.com/yt-dlp/yt-dlp/issues/9366)) by [panatexxa](https://github.com/panatexxa)
+- **netease**: program: [Improve `--no-playlist` message](https://github.com/yt-dlp/yt-dlp/commit/73f12119b52d98281804b0c072b2ed6aa841ec88) ([#9488](https://github.com/yt-dlp/yt-dlp/issues/9488)) by [pzhlkj6612](https://github.com/pzhlkj6612)
+- **nfb**: [Fix extractors](https://github.com/yt-dlp/yt-dlp/commit/0a1a8e3005f66c44bf67633dccd4df19c3fccd1a) ([#9650](https://github.com/yt-dlp/yt-dlp/issues/9650)) by [rrgomes](https://github.com/rrgomes)
+- **ntslive**: [Add extractor](https://github.com/yt-dlp/yt-dlp/commit/be7db1a5a8c483726c511c30ea4689cbb8b27962) ([#9641](https://github.com/yt-dlp/yt-dlp/issues/9641)) by [lostfictions](https://github.com/lostfictions)
+- **orf**: on: [Improve extraction](https://github.com/yt-dlp/yt-dlp/commit/0dd53faeca2ba0ce138e4092d07b5f2dbf2422f9) ([#9677](https://github.com/yt-dlp/yt-dlp/issues/9677)) by [TuxCoder](https://github.com/TuxCoder)
+- **orftvthek**: [Remove extractor](https://github.com/yt-dlp/yt-dlp/commit/3779f2a307ba3ef1d28e107cdd71b221dfb4eb36) ([#10011](https://github.com/yt-dlp/yt-dlp/issues/10011)) by [seproDev](https://github.com/seproDev)
+- **patreon**
+    - [Extract multiple embeds](https://github.com/yt-dlp/yt-dlp/commit/036e0d92c6052465673d459678322ea03e61483d) ([#9850](https://github.com/yt-dlp/yt-dlp/issues/9850)) by [bashonly](https://github.com/bashonly)
+    - [Fix Vimeo embed extraction](https://github.com/yt-dlp/yt-dlp/commit/c9ce57d9bf51541da2381d99bc096a9d0ddf1f27) ([#9712](https://github.com/yt-dlp/yt-dlp/issues/9712)) by [bashonly](https://github.com/bashonly)
+- **piapro**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/3ba8de62d61d782256f5c1e9939a0762039657de) ([#9311](https://github.com/yt-dlp/yt-dlp/issues/9311)) by [FinnRG](https://github.com/FinnRG), [seproDev](https://github.com/seproDev)
+- **pornhub**: [Fix login by email address](https://github.com/yt-dlp/yt-dlp/commit/518c1afc1592cae3e4eb39dc646b5bc059333112) ([#9914](https://github.com/yt-dlp/yt-dlp/issues/9914)) by [feederbox826](https://github.com/feederbox826)
+- **qub**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/6b54cccdcb892bca3e55993480d8b86f1c7e6da6) ([#7019](https://github.com/yt-dlp/yt-dlp/issues/7019)) by [alexhuot1](https://github.com/alexhuot1), [dirkf](https://github.com/dirkf)
+- **reddit**: [Fix subtitles extraction](https://github.com/yt-dlp/yt-dlp/commit/82f4f4444e26daf35b7302c406fe2312f78f619e) ([#10006](https://github.com/yt-dlp/yt-dlp/issues/10006)) by [kclauhk](https://github.com/kclauhk)
+- **soundcloud**
+    - [Add `formats` extractor-arg](https://github.com/yt-dlp/yt-dlp/commit/beaf832c7a9d57833f365ce18f6115b88071b296) ([#10004](https://github.com/yt-dlp/yt-dlp/issues/10004)) by [bashonly](https://github.com/bashonly), [Grub4K](https://github.com/Grub4K)
+    - [Extract `genres`](https://github.com/yt-dlp/yt-dlp/commit/231c2eacc41b06b65c63edf94c0d04768a5da607) ([#9821](https://github.com/yt-dlp/yt-dlp/issues/9821)) by [bashonly](https://github.com/bashonly)
+- **taptap**: [Add extractors](https://github.com/yt-dlp/yt-dlp/commit/63b569bc5e7d461753637a20ad84a575adee4c0a) ([#9776](https://github.com/yt-dlp/yt-dlp/issues/9776)) by [c-basalt](https://github.com/c-basalt)
+- **tele5**: [Overhaul extractor](https://github.com/yt-dlp/yt-dlp/commit/c92e4e625e9e6bbbbf8e3b20c3e7ebe57c16072d) ([#10024](https://github.com/yt-dlp/yt-dlp/issues/10024)) by [bashonly](https://github.com/bashonly)
+- **theatercomplextown**: [Fix extractors](https://github.com/yt-dlp/yt-dlp/commit/8056a3026ed6ec6a6d0ed56fdd7ebcd16e928341) ([#9754](https://github.com/yt-dlp/yt-dlp/issues/9754)) by [bashonly](https://github.com/bashonly)
+- **tiktok**
+    - [Add `device_id` extractor-arg](https://github.com/yt-dlp/yt-dlp/commit/3584b8390bd21c0393a3079eeee71aed56a1c1d8) ([#9951](https://github.com/yt-dlp/yt-dlp/issues/9951)) by [bashonly](https://github.com/bashonly)
+    - [Extract all web formats](https://github.com/yt-dlp/yt-dlp/commit/4ccd73fea0f6f4be343e1ec7f22dd03799addcf8) ([#9960](https://github.com/yt-dlp/yt-dlp/issues/9960)) by [bashonly](https://github.com/bashonly)
+    - [Extract via mobile API only if extractor-arg is passed](https://github.com/yt-dlp/yt-dlp/commit/41ba4a808b597a3afed78c89675a30deb6844450) ([#9938](https://github.com/yt-dlp/yt-dlp/issues/9938)) by [bashonly](https://github.com/bashonly)
+    - [Fix subtitles extraction](https://github.com/yt-dlp/yt-dlp/commit/eef1e9f44ff14c5e65b759bb1eafa3946cdaf719) ([#9961](https://github.com/yt-dlp/yt-dlp/issues/9961)) by [bashonly](https://github.com/bashonly)
+    - collection: [Add extractor](https://github.com/yt-dlp/yt-dlp/commit/119d41f27061d220d276a2d38cfc8d873437452a) ([#9986](https://github.com/yt-dlp/yt-dlp/issues/9986)) by [bashonly](https://github.com/bashonly), [imanoreotwe](https://github.com/imanoreotwe)
+    - user: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/347f13dd9bccc2b4db3ea25689410d45d8370ed4) ([#9661](https://github.com/yt-dlp/yt-dlp/issues/9661)) by [bashonly](https://github.com/bashonly)
+- **tv5monde**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/6db96268c521e945d42649607db1574f5d92e082) ([#9143](https://github.com/yt-dlp/yt-dlp/issues/9143)) by [alard](https://github.com/alard), [seproDev](https://github.com/seproDev)
+- **twitter**
+    - [Fix auth for x.com migration](https://github.com/yt-dlp/yt-dlp/commit/3e35aa32c74bc108375be8c8b6b3bfc90dfff1b4) ([#9952](https://github.com/yt-dlp/yt-dlp/issues/9952)) by [bashonly](https://github.com/bashonly)
+    - [Support x.com URLs](https://github.com/yt-dlp/yt-dlp/commit/4813173e4544f125d6f2afc31e600727d761b8dd) ([#9926](https://github.com/yt-dlp/yt-dlp/issues/9926)) by [bashonly](https://github.com/bashonly)
+- **vk**: [Improve format extraction](https://github.com/yt-dlp/yt-dlp/commit/df5c9e733aaba703cf285c0372b6d61629330c82) ([#9885](https://github.com/yt-dlp/yt-dlp/issues/9885)) by [seproDev](https://github.com/seproDev)
+- **wrestleuniverse**: [Avoid partial stream formats](https://github.com/yt-dlp/yt-dlp/commit/c4853655cb9a793129280806af643de43c48f4d5) ([#9800](https://github.com/yt-dlp/yt-dlp/issues/9800)) by [bashonly](https://github.com/bashonly)
+- **xiaohongshu**: [Add extractor](https://github.com/yt-dlp/yt-dlp/commit/a2e9031605d87c469be9ce98dbbdf4960b727338) ([#9646](https://github.com/yt-dlp/yt-dlp/issues/9646)) by [HobbyistDev](https://github.com/HobbyistDev)
+- **xvideos**: quickies: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/b207d26f83fb8ab0ce56df74dff43ff583a3264f) ([#9834](https://github.com/yt-dlp/yt-dlp/issues/9834)) by [JakeFinley96](https://github.com/JakeFinley96)
+- **youporn**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/351368cb9a6731b886a58f5a10fd6b302bbe47be) ([#8827](https://github.com/yt-dlp/yt-dlp/issues/8827)) by [The-MAGI](https://github.com/The-MAGI)
+- **youtube**
+    - [Add `mediaconnect` client](https://github.com/yt-dlp/yt-dlp/commit/cf212d0a331aba05c32117573f760cdf3af8c62f) ([#9546](https://github.com/yt-dlp/yt-dlp/issues/9546)) by [clienthax](https://github.com/clienthax)
+    - [Extract upload timestamp if available](https://github.com/yt-dlp/yt-dlp/commit/96a134dea6397a5f2131947c427aac52c8b4e677) ([#9856](https://github.com/yt-dlp/yt-dlp/issues/9856)) by [coletdjnz](https://github.com/coletdjnz)
+    - [Fix comments extraction](https://github.com/yt-dlp/yt-dlp/commit/8e15177b4113c355989881e4e030f695a9b59c3a) ([#9775](https://github.com/yt-dlp/yt-dlp/issues/9775)) by [bbilly1](https://github.com/bbilly1), [jakeogh](https://github.com/jakeogh), [minamotorin](https://github.com/minamotorin), [shoxie007](https://github.com/shoxie007)
+    - [Remove `android` from default clients](https://github.com/yt-dlp/yt-dlp/commit/12d8ea8246fa901de302ff5cc748caddadc82f41) ([#9553](https://github.com/yt-dlp/yt-dlp/issues/9553)) by [bashonly](https://github.com/bashonly), [coletdjnz](https://github.com/coletdjnz)
+- **zenyandex**: [Fix extractor](https://github.com/yt-dlp/yt-dlp/commit/c4b87dd885ee5391e5f481e7c8bd550a7c543623) ([#9813](https://github.com/yt-dlp/yt-dlp/issues/9813)) by [src-tinkerer](https://github.com/src-tinkerer)
+
+#### Networking changes
+- [Add `extensions` attribute to `Response`](https://github.com/yt-dlp/yt-dlp/commit/bec9a59e8ec82c18e3bf9268eaa436793dd52e35) ([#9756](https://github.com/yt-dlp/yt-dlp/issues/9756)) by [bashonly](https://github.com/bashonly)
+- **Request Handler**
+    - requests
+        - [Patch support for `requests` 2.32.2+](https://github.com/yt-dlp/yt-dlp/commit/3f7999533ebe41c2a579d91b4e4cb211cfcd3bc0) ([#9992](https://github.com/yt-dlp/yt-dlp/issues/9992)) by [Grub4K](https://github.com/Grub4K)
+        - [Update to `requests` 2.32.0](https://github.com/yt-dlp/yt-dlp/commit/c36513f1be2ef3d3cec864accbffda1afaa06ffd) ([#9980](https://github.com/yt-dlp/yt-dlp/issues/9980)) by [coletdjnz](https://github.com/coletdjnz)
+
+#### Misc. changes
+- [Add `hatch`, `ruff`, `pre-commit` and improve dev docs](https://github.com/yt-dlp/yt-dlp/commit/e897bd8292a41999cf51dba91b390db5643c72db) ([#7409](https://github.com/yt-dlp/yt-dlp/issues/7409)) by [bashonly](https://github.com/bashonly), [Grub4K](https://github.com/Grub4K), [seproDev](https://github.com/seproDev)
+- **build**
+    - [Migrate `linux_exe` to static musl builds](https://github.com/yt-dlp/yt-dlp/commit/ac817bc83efd939dca3e40c4b527d0ccfc77172b) ([#9811](https://github.com/yt-dlp/yt-dlp/issues/9811)) by [bashonly](https://github.com/bashonly), [Grub4K](https://github.com/Grub4K)
+    - [Normalize `curl_cffi` group to `curl-cffi`](https://github.com/yt-dlp/yt-dlp/commit/02483bea1c4dbe1bace8ca4d19700104fbb8a00f) ([#9698](https://github.com/yt-dlp/yt-dlp/issues/9698)) by [bashonly](https://github.com/bashonly) (With fixes in [89f535e](https://github.com/yt-dlp/yt-dlp/commit/89f535e2656964b4061c25a7739d4d6ba0a30568))
+    - [Run `macos_legacy` job on `macos-12`](https://github.com/yt-dlp/yt-dlp/commit/1a366403d9c26b992faa77e00f4d02ead57559e3) ([#9804](https://github.com/yt-dlp/yt-dlp/issues/9804)) by [bashonly](https://github.com/bashonly)
+    - [`macos` job requires `setuptools<70`](https://github.com/yt-dlp/yt-dlp/commit/78c57cc0e0998b8ed90e4306f410aa4be4115cd7) ([#9993](https://github.com/yt-dlp/yt-dlp/issues/9993)) by [bashonly](https://github.com/bashonly)
+- **cleanup**
+    - [Remove questionable extractors](https://github.com/yt-dlp/yt-dlp/commit/01395a34345d1c6ba1b73ca92f94dd200dc45341) ([#9911](https://github.com/yt-dlp/yt-dlp/issues/9911)) by [seproDev](https://github.com/seproDev)
+    - Miscellaneous: [5c019f6](https://github.com/yt-dlp/yt-dlp/commit/5c019f6328ad40d66561eac3c4de0b3cd070d0f6), [ae2af11](https://github.com/yt-dlp/yt-dlp/commit/ae2af1104f80caf2f47544763a33db2c17a3e1de) by [bashonly](https://github.com/bashonly), [Grub4K](https://github.com/Grub4K), [seproDev](https://github.com/seproDev)
+- **test**
+    - [Add HTTP proxy tests](https://github.com/yt-dlp/yt-dlp/commit/3c7a287e281d9f9a353dce8902ff78a84c24a040) ([#9578](https://github.com/yt-dlp/yt-dlp/issues/9578)) by [coletdjnz](https://github.com/coletdjnz)
+    - [Fix connect timeout test](https://github.com/yt-dlp/yt-dlp/commit/53b4d44f55cca66ac33dab092ef2a30b1164b684) ([#9906](https://github.com/yt-dlp/yt-dlp/issues/9906)) by [coletdjnz](https://github.com/coletdjnz)
+
 ### 2024.04.09
 
 #### Important changes

Makefile

@@ -27,7 +27,7 @@ clean-dist:
 	yt_dlp/extractor/lazy_extractors.py *.spec CONTRIBUTING.md.tmp yt-dlp yt-dlp.exe yt_dlp.egg-info/ AUTHORS
 clean-cache:
 	find . \( \
-		-type d -name .pytest_cache -o -type d -name __pycache__ -o -name "*.pyc" -o -name "*.class" \
+		-type d -name ".*_cache" -o -type d -name __pycache__ -o -name "*.pyc" -o -name "*.class" \
 	\) -prune -exec rm -rf {} \;
 
 completion-bash: completions/bash/yt-dlp
@@ -70,14 +70,15 @@ uninstall:
 	rm -f $(DESTDIR)$(SHAREDIR)/fish/vendor_completions.d/yt-dlp.fish
 
 codetest:
-	flake8 .
+	ruff check .
+	autopep8 --diff .
 
 test:
-	$(PYTHON) -m pytest
+	$(PYTHON) -m pytest -Werror
 	$(MAKE) codetest
 
 offlinetest: codetest
-	$(PYTHON) -m pytest -k "not download"
+	$(PYTHON) -m pytest -Werror -m "not download"
 
 CODE_FOLDERS_CMD = find yt_dlp -type f -name '__init__.py' | sed 's,/__init__.py,,' | grep -v '/__' | sort
 CODE_FOLDERS != $(CODE_FOLDERS_CMD)
@@ -151,7 +152,7 @@ yt-dlp.tar.gz: all
 		--exclude '*.pyo' \
 		--exclude '*~' \
 		--exclude '__pycache__' \
-		--exclude '.pytest_cache' \
+		--exclude '.*_cache' \
 		--exclude '.git' \
 		-- \
 		README.md supportedsites.md Changelog.md LICENSE \

README.md

@@ -108,7 +108,6 @@ #### Alternatives
 [yt-dlp_x86.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_x86.exe)|Windows (Win7 SP1+) standalone x86 (32-bit) binary
 [yt-dlp_min.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_min.exe)|Windows (Win7 SP1+) standalone x64 binary built with `py2exe`<br/> ([Not recommended](#standalone-py2exe-builds-windows))
 [yt-dlp_linux](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux)|Linux standalone x64 binary
-[yt-dlp_linux.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux.zip)|Unpackaged Linux executable (no auto-update)
 [yt-dlp_linux_armv7l](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux_armv7l)|Linux standalone armv7l (32-bit) binary
 [yt-dlp_linux_aarch64](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux_aarch64)|Linux standalone aarch64 (64-bit) binary
 [yt-dlp_win.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_win.zip)|Unpackaged Windows executable (no auto-update)
@@ -170,7 +169,7 @@ # To update to nightly from stable executable/binary:
 yt-dlp --update-to nightly
 
 # To install nightly with pip:
-python3 -m pip install -U --pre yt-dlp[default]
+python3 -m pip install -U --pre "yt-dlp[default]"
 ```
 
 ## DEPENDENCIES
@@ -202,7 +201,7 @@ #### Impersonation
 The following provide support for impersonating browser requests. This may be required for some sites that employ TLS fingerprinting. 
 
 * [**curl_cffi**](https://github.com/yifeikong/curl_cffi) (recommended) - Python binding for [curl-impersonate](https://github.com/lwthiker/curl-impersonate). Provides impersonation targets for Chrome, Edge and Safari. Licensed under [MIT](https://github.com/yifeikong/curl_cffi/blob/main/LICENSE)
-  * Can be installed with the `curl-cffi` group, e.g. `pip install yt-dlp[default,curl-cffi]`
+  * Can be installed with the `curl-cffi` group, e.g. `pip install "yt-dlp[default,curl-cffi]"`
   * Currently only included in `yt-dlp.exe` and `yt-dlp_macos` builds
 
 
@@ -263,7 +262,7 @@ ### Platform-independent Binary (UNIX)
 
 ### Standalone Py2Exe Builds (Windows)
 
-While we provide the option to build with [py2exe](https://www.py2exe.org), it is recommended to build [using PyInstaller](#standalone-pyinstaller-builds) instead since the py2exe builds **cannot contain `pycryptodomex`/`certifi` and needs VC++14** on the target computer to run.
+While we provide the option to build with [py2exe](https://www.py2exe.org), it is recommended to build [using PyInstaller](#standalone-pyinstaller-builds) instead since the py2exe builds **cannot contain `pycryptodomex`/`certifi`/`requests` and need VC++14** on the target computer to run.
 
 If you wish to build it anyway, install Python (if it is not already installed) and you can run the following commands:
 
@@ -402,6 +401,9 @@ ## Network Options:
     --impersonate CLIENT[:OS]       Client to impersonate for requests. E.g.
                                     chrome, chrome-110, chrome:windows-10. Pass
                                     --impersonate="" to impersonate any client.
+                                    Note that forcing impersonation for all
+                                    requests may have a detrimental impact on
+                                    download speed and stability
     --list-impersonate-targets      List available clients to impersonate.
     -4, --force-ipv4                Make all connections via IPv4
     -6, --force-ipv6                Make all connections via IPv6
@@ -666,16 +668,17 @@ ## Filesystem Options:
                                     The name of the browser to load cookies
                                     from. Currently supported browsers are:
                                     brave, chrome, chromium, edge, firefox,
-                                    opera, safari, vivaldi. Optionally, the
+                                    opera, safari, vivaldi, whale. Optionally,
-                                    KEYRING used for decrypting Chromium cookies
+                                    the KEYRING used for decrypting Chromium
-                                    on Linux, the name/path of the PROFILE to
+                                    cookies on Linux, the name/path of the
-                                    load cookies from, and the CONTAINER name
+                                    PROFILE to load cookies from, and the
-                                    (if Firefox) ("none" for no container) can
+                                    CONTAINER name (if Firefox) ("none" for no
-                                    be given with their respective seperators.
+                                    container) can be given with their
-                                    By default, all containers of the most
+                                    respective seperators. By default, all
-                                    recently accessed profile are used.
+                                    containers of the most recently accessed
-                                    Currently supported keyrings are: basictext,
+                                    profile are used. Currently supported
-                                    gnomekeyring, kwallet, kwallet5, kwallet6
+                                    keyrings are: basictext, gnomekeyring,
+                                    kwallet, kwallet5, kwallet6
     --no-cookies-from-browser       Do not load cookies from browser (default)
     --cache-dir DIR                 Location in the filesystem where yt-dlp can
                                     store some downloaded information (such as
@@ -1751,7 +1754,7 @@ # Replace all spaces and "_" in title and uploader with a `-`
 
 # EXTRACTOR ARGUMENTS
 
-Some extractors accept additional arguments which can be passed using `--extractor-args KEY:ARGS`. `ARGS` is a `;` (semicolon) separated string of `ARG=VAL1,VAL2`. E.g. `--extractor-args "youtube:player-client=android_embedded,web;include_live_dash" --extractor-args "funimation:version=uncut"`
+Some extractors accept additional arguments which can be passed using `--extractor-args KEY:ARGS`. `ARGS` is a `;` (semicolon) separated string of `ARG=VAL1,VAL2`. E.g. `--extractor-args "youtube:player-client=android_embedded,web;formats=incomplete" --extractor-args "funimation:version=uncut"`
 
 Note: In CLI, `ARG` can use `-` instead of `_`; e.g. `youtube:player-client"` becomes `youtube:player_client"`
 
@@ -1760,7 +1763,7 @@ # EXTRACTOR ARGUMENTS
 #### youtube
 * `lang`: Prefer translated metadata (`title`, `description` etc) of this language code (case-sensitive). By default, the video primary language metadata is preferred, with a fallback to `en` translated. See [youtube.py](https://github.com/yt-dlp/yt-dlp/blob/c26f9b991a0681fd3ea548d535919cec1fbbd430/yt_dlp/extractor/youtube.py#L381-L390) for list of supported content language codes
 * `skip`: One or more of `hls`, `dash` or `translated_subs` to skip extraction of the m3u8 manifests, dash manifests and [auto-translated subtitles](https://github.com/yt-dlp/yt-dlp/issues/4090#issuecomment-1158102032) respectively
-* `player_client`: Clients to extract video data from. The main clients are `web`, `android` and `ios` with variants `_music`, `_embedded`, `_embedscreen`, `_creator` (e.g. `web_embedded`); and `mweb`, `mweb_embedscreen` and `tv_embedded` (agegate bypass) with no variants. By default, `ios,android,web` is used, but `tv_embedded` and `creator` variants are added as required for age-gated videos. Similarly, the music variants are added for `music.youtube.com` urls. You can use `all` to use all the clients, and `default` for the default clients.
+* `player_client`: Clients to extract video data from. The main clients are `web`, `ios` and `android`, with variants `_music`, `_embedded`, `_embedscreen`, `_creator` (e.g. `web_embedded`); and `mweb`, `mweb_embedscreen` and `tv_embedded` (agegate bypass) with no variants. By default, `ios,web` is used, but `tv_embedded` and `creator` variants are added as required for age-gated videos. Similarly, the music variants are added for `music.youtube.com` urls. The `android` clients will always be given lowest priority since their formats are broken. You can use `all` to use all the clients, and `default` for the default clients.
 * `player_skip`: Skip some network requests that are generally needed for robust extraction. One or more of `configs` (skip client configs), `webpage` (skip initial webpage), `js` (skip js player). While these options can help reduce the number of requests needed or avoid some rate-limiting, they could cause some issues. See [#860](https://github.com/yt-dlp/yt-dlp/pull/860) for more details
 * `player_params`: YouTube player parameters to use for player requests. Will overwrite any default ones set by yt-dlp.
 * `comment_sort`: `top` or `new` (default) - choose comment sorting mode (on YouTube's side)
@@ -1813,8 +1816,9 @@ #### tiktok
 * `app_name`: Default app name to use with mobile API calls, e.g. `trill`
 * `app_version`: Default app version to use with mobile API calls - should be set along with `manifest_app_version`, e.g. `34.1.2`
 * `manifest_app_version`: Default numeric app version to use with mobile API calls, e.g. `2023401020`
-* `aid`: Default app ID to use with API calls, e.g. `1180`
+* `aid`: Default app ID to use with mobile API calls, e.g. `1180`
-* `app_info`: One or more app info strings in the format of `<iid>/[app_name]/[app_version]/[manifest_app_version]/[aid]`, where `iid` is the unique app install ID. `iid` is the only required value; all other values and their `/` separators can be omitted, e.g. `tiktok:app_info=1234567890123456789` or `tiktok:app_info=123,456/trill///1180,789//34.0.1/340001`
+* `app_info`: Enable mobile API extraction with one or more app info strings in the format of `<iid>/[app_name]/[app_version]/[manifest_app_version]/[aid]`, where `iid` is the unique app install ID. `iid` is the only required value; all other values and their `/` separators can be omitted, e.g. `tiktok:app_info=1234567890123456789` or `tiktok:app_info=123,456/trill///1180,789//34.0.1/340001`
+* `device_id`: Enable mobile API extraction with a genuine device ID to be used with mobile API calls. Default is a random 19-digit string
 
 #### rokfinchannel
 * `tab`: Which tab to download - one of `new`, `top`, `videos`, `podcasts`, `streams`, `stacks`
@@ -1834,12 +1838,18 @@ #### nhkradirulive (NHK らじる★らじる LIVE)
 #### nflplusreplay
 * `type`: Type(s) of game replays to extract. Valid types are: `full_game`, `full_game_spanish`, `condensed_game` and `all_22`. You can use `all` to extract all available replay types, which is the default
 
+#### jiocinema
+* `refresh_token`: The `refreshToken` UUID from browser local storage can be passed to extend the life of your login session when logging in with `token` as username and the `accessToken` from browser local storage as password
+
 #### jiosaavn
 * `bitrate`: Audio bitrates to request. One or more of `16`, `32`, `64`, `128`, `320`. Default is `128,320`
 
 #### afreecatvlive
 * `cdn`: One or more CDN IDs to use with the API call for stream URLs, e.g. `gcp_cdn`, `gs_cdn_pc_app`, `gs_cdn_mobile_web`, `gs_cdn_pc_web`
 
+#### soundcloud
+* `formats`: Formats to request from the API. Requested values should be in the format of `{protocol}_{extension}` (omitting the bitrate), e.g. `hls_opus,http_aac`. The `*` character functions as a wildcard, e.g. `*_mp3`, and can passed by itself to request all formats. Known protocols include `http`, `hls` and `hls-aes`; known extensions include `aac`, `opus` and `mp3`. Original `download` formats are always extracted. Default is `http_aac,hls_aac,http_opus,hls_opus,http_mp3,hls_mp3`
+
 **Note**: These options may be changed/removed in the future without concern for backward compatibility
 
 <!-- MANPAGE: MOVE "INSTALLATION" SECTION HERE -->
@@ -2116,7 +2126,7 @@ # CHANGES FROM YOUTUBE-DL
 
 ### New features
 
-* Forked from [**yt-dlc@f9401f2**](https://github.com/blackjack4494/yt-dlc/commit/f9401f2a91987068139c5f757b12fc711d4c0cee) and merged with [**youtube-dl@be008e6**](https://github.com/ytdl-org/youtube-dl/commit/be008e657d79832642e2158557c899249c9e31cd) ([exceptions](https://github.com/yt-dlp/yt-dlp/issues/21))
+* Forked from [**yt-dlc@f9401f2**](https://github.com/blackjack4494/yt-dlc/commit/f9401f2a91987068139c5f757b12fc711d4c0cee) and merged with [**youtube-dl@a08f2b7**](https://github.com/ytdl-org/youtube-dl/commit/a08f2b7e4567cdc50c0614ee0a4ffdff49b8b6e6) ([exceptions](https://github.com/yt-dlp/yt-dlp/issues/21))
 
 * **[SponsorBlock Integration](#sponsorblock-options)**: You can mark/remove sponsor sections in YouTube videos by utilizing the [SponsorBlock](https://sponsor.ajay.app) API
 
@@ -2326,6 +2336,7 @@ #### No longer supported
     --write-annotations              No supported site has annotations now
     --no-write-annotations           Default
     --compat-options seperate-video-versions  No longer needed
+    --compat-options no-youtube-prefer-utc-upload-date  No longer supported
 
 #### Removed
 These options were deprecated since 2014 and have now been entirely removed

bundle/py2exe.py

@@ -42,9 +42,9 @@ def main():
                 # py2exe cannot import Crypto
                 'Crypto',
                 'Cryptodome',
-                # py2exe appears to confuse this with our socks library.
+                # requests >=2.32.0 breaks py2exe builds due to certifi dependency
-                # We don't use pysocks and urllib3.contrib.socks would fail to import if tried.
+                'requests',
-                'urllib3.contrib.socks'
+                'urllib3',
             ],
             'dll_excludes': ['w9xpopen.exe', 'crypt32.dll'],
             # Modules that are only imported dynamically must be added here

bundle/pyinstaller.py

@@ -68,7 +68,7 @@ def exe(onedir):
         'dist/',
         onedir and f'{name}/',
         name,
-        OS_NAME == 'win32' and '.exe'
+        OS_NAME == 'win32' and '.exe',
     )))
 
 
@@ -113,7 +113,7 @@ def windows_set_version(exe, version):
         ),
         kids=[
             StringFileInfo([StringTable('040904B0', [
-                StringStruct('Comments', 'yt-dlp%s Command Line Interface' % suffix),
+                StringStruct('Comments', f'yt-dlp{suffix} Command Line Interface'),
                 StringStruct('CompanyName', 'https://github.com/yt-dlp'),
                 StringStruct('FileDescription', 'yt-dlp%s' % (MACHINE and f' ({MACHINE})')),
                 StringStruct('FileVersion', version),
@@ -123,8 +123,8 @@ def windows_set_version(exe, version):
                 StringStruct('ProductName', f'yt-dlp{suffix}'),
                 StringStruct(
                     'ProductVersion', f'{version}{suffix} on Python {platform.python_version()}'),
-            ])]), VarFileInfo([VarStruct('Translation', [0, 1200])])
+            ])]), VarFileInfo([VarStruct('Translation', [0, 1200])]),
-        ]
+        ],
     ))
 
 

devscripts/bash-completion.py

@@ -9,8 +9,8 @@
 
 import yt_dlp
 
-BASH_COMPLETION_FILE = "completions/bash/yt-dlp"
+BASH_COMPLETION_FILE = 'completions/bash/yt-dlp'
-BASH_COMPLETION_TEMPLATE = "devscripts/bash-completion.in"
+BASH_COMPLETION_TEMPLATE = 'devscripts/bash-completion.in'
 
 
 def build_completion(opt_parser):
@@ -21,9 +21,9 @@ def build_completion(opt_parser):
             opts_flag.append(option.get_opt_string())
     with open(BASH_COMPLETION_TEMPLATE) as f:
         template = f.read()
-    with open(BASH_COMPLETION_FILE, "w") as f:
+    with open(BASH_COMPLETION_FILE, 'w') as f:
         # just using the special char
-        filled_template = template.replace("{{flags}}", " ".join(opts_flag))
+        filled_template = template.replace('{{flags}}', ' '.join(opts_flag))
         f.write(filled_template)
 
 

devscripts/changelog_override.json

@@ -147,5 +147,27 @@
         "action": "add",
         "when": "9590cc6b4768e190183d7d071a6c78170889116a",
         "short": "[priority] Security: [[CVE-2024-22423](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-22423)] [Prevent RCE when using `--exec` with `%q` on Windows](https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-hjq6-52gw-2g7p)\n    - The shell escape function now properly escapes `%`, `\\` and `\\n`.\n    - `utils.Popen` has been patched accordingly."
+    },
+    {
+        "action": "change",
+        "when": "41ba4a808b597a3afed78c89675a30deb6844450",
+        "short": "[ie/tiktok] Extract via mobile API only if extractor-arg is passed (#9938)",
+        "authors": ["bashonly"]
+    },
+    {
+        "action": "remove",
+        "when": "6e36d17f404556f0e3a43f441c477a71a91877d9"
+    },
+    {
+        "action": "change",
+        "when": "beaf832c7a9d57833f365ce18f6115b88071b296",
+        "short": "[ie/soundcloud] Add `formats` extractor-arg (#10004)",
+        "authors": ["bashonly", "Grub4K"]
+    },
+    {
+        "action": "change",
+        "when": "5c019f6328ad40d66561eac3c4de0b3cd070d0f6",
+        "short": "[cleanup] Misc (#9765)",
+        "authors": ["bashonly", "Grub4K", "seproDev"]
     }
 ]

devscripts/install_deps.py

@@ -42,17 +42,25 @@ def parse_args():
 def main():
     args = parse_args()
     project_table = parse_toml(read_file(args.input))['project']
+    recursive_pattern = re.compile(rf'{project_table["name"]}\[(?P<group_name>[\w-]+)\]')
     optional_groups = project_table['optional-dependencies']
     excludes = args.exclude or []
 
+    def yield_deps(group):
+        for dep in group:
+            if mobj := recursive_pattern.fullmatch(dep):
+                yield from optional_groups.get(mobj.group('group_name'), [])
+            else:
+                yield dep
+
     targets = []
     if not args.only_optional:  # `-o` should exclude 'dependencies' and the 'default' group
         targets.extend(project_table['dependencies'])
         if 'default' not in excludes:  # `--exclude default` should exclude entire 'default' group
-            targets.extend(optional_groups['default'])
+            targets.extend(yield_deps(optional_groups['default']))
 
     for include in filter(None, map(optional_groups.get, args.include or [])):
-        targets.extend(include)
+        targets.extend(yield_deps(include))
 
     targets = [t for t in targets if re.match(r'[\w-]+', t).group(0).lower() not in excludes]
 

devscripts/make_changelog.py

@@ -223,10 +223,10 @@ def format_single_change(self, info: CommitInfo):
 
         return message if not sep else f'{message}{sep}{rest}'
 
-    def _format_message_link(self, message, hash):
+    def _format_message_link(self, message, commit_hash):
-        assert message or hash, 'Improperly defined commit message or override'
+        assert message or commit_hash, 'Improperly defined commit message or override'
-        message = message if message else hash[:HASH_LENGTH]
+        message = message if message else commit_hash[:HASH_LENGTH]
-        return f'[{message}]({self.repo_url}/commit/{hash})' if hash else message
+        return f'[{message}]({self.repo_url}/commit/{commit_hash})' if commit_hash else message
 
     def _format_issues(self, issues):
         return ', '.join(f'[#{issue}]({self.repo_url}/issues/{issue})' for issue in issues)
@@ -356,7 +356,7 @@ def apply_overrides(self, overrides):
                 logger.info(f'CHANGE {self._commits[commit.hash]} -> {commit}')
                 self._commits[commit.hash] = commit
 
-        self._commits = {key: value for key, value in reversed(self._commits.items())}
+        self._commits = dict(reversed(self._commits.items()))
 
     def groups(self):
         group_dict = defaultdict(list)

devscripts/make_readme.py

@@ -51,7 +51,7 @@ def apply_patch(text, patch):
     ),
     (   # Headings
         r'(?m)^  (\w.+\n)(    (?=\w))?',
-        r'## \1'
+        r'## \1',
     ),
     (   # Fixup `--date` formatting
         rf'(?m)(    --date DATE.+({delim}[^\[]+)*)\[.+({delim}.+)*$',
@@ -61,26 +61,26 @@ def apply_patch(text, patch):
     ),
     (   # Do not split URLs
         rf'({delim[:-1]})? (?P<label>\[\S+\] )?(?P<url>https?({delim})?:({delim})?/({delim})?/(({delim})?\S+)+)\s',
-        lambda mobj: ''.join((delim, mobj.group('label') or '', re.sub(r'\s+', '', mobj.group('url')), '\n'))
+        lambda mobj: ''.join((delim, mobj.group('label') or '', re.sub(r'\s+', '', mobj.group('url')), '\n')),
     ),
     (   # Do not split "words"
         rf'(?m)({delim}\S+)+$',
-        lambda mobj: ''.join((delim, mobj.group(0).replace(delim, '')))
+        lambda mobj: ''.join((delim, mobj.group(0).replace(delim, ''))),
     ),
     (   # Allow overshooting last line
         rf'(?m)^(?P<prev>.+)${delim}(?P<current>.+)$(?!{delim})',
         lambda mobj: (mobj.group().replace(delim, ' ')
                       if len(mobj.group()) - len(delim) + 1 <= max_width + ALLOWED_OVERSHOOT
-                      else mobj.group())
+                      else mobj.group()),
     ),
     (   # Avoid newline when a space is available b/w switch and description
         DISABLE_PATCH,  # This creates issues with prepare_manpage
         r'(?m)^(\s{4}-.{%d})(%s)' % (switch_col_width - 6, delim),
-        r'\1 '
+        r'\1 ',
     ),
     (   # Replace brackets with a Markdown link
         r'SponsorBlock API \((http.+)\)',
-        r'[SponsorBlock API](\1)'
+        r'[SponsorBlock API](\1)',
     ),
 )
 

devscripts/run_tests.bat

@@ -1,4 +0,0 @@
-@echo off
-
->&2 echo run_tests.bat is deprecated. Please use `devscripts/run_tests.py` instead
-python %~dp0run_tests.py %~1

devscripts/run_tests.py

@@ -4,6 +4,7 @@
 import functools
 import os
 import re
+import shlex
 import subprocess
 import sys
 from pathlib import Path
@@ -18,6 +19,8 @@ def parse_args():
         'test', help='a extractor tests, or one of "core" or "download"', nargs='*')
     parser.add_argument(
         '-k', help='run a test matching EXPRESSION. Same as "pytest -k"', metavar='EXPRESSION')
+    parser.add_argument(
+        '--pytest-args', help='arguments to passthrough to pytest')
     return parser.parse_args()
 
 
@@ -26,15 +29,16 @@ def run_tests(*tests, pattern=None, ci=False):
     run_download = 'download' in tests
     tests = list(map(fix_test_name, tests))
 
-    arguments = ['pytest', '-Werror', '--tb=short']
+    pytest_args = args.pytest_args or os.getenv('HATCH_TEST_ARGS', '')
+    arguments = ['pytest', '-Werror', '--tb=short', *shlex.split(pytest_args)]
     if ci:
         arguments.append('--color=yes')
+    if pattern:
+        arguments.extend(['-k', pattern])
     if run_core:
         arguments.extend(['-m', 'not download'])
     elif run_download:
         arguments.extend(['-m', 'download'])
-    elif pattern:
-        arguments.extend(['-k', pattern])
     else:
         arguments.extend(
             f'test/test_download.py::TestDownload::test_{test}' for test in tests)
@@ -46,13 +50,13 @@ def run_tests(*tests, pattern=None, ci=False):
         pass
 
     arguments = [sys.executable, '-Werror', '-m', 'unittest']
+    if pattern:
+        arguments.extend(['-k', pattern])
     if run_core:
         print('"pytest" needs to be installed to run core tests', file=sys.stderr, flush=True)
         return 1
     elif run_download:
         arguments.append('test.test_download')
-    elif pattern:
-        arguments.extend(['-k', pattern])
     else:
         arguments.extend(
             f'test.test_download.TestDownload.test_{test}' for test in tests)

devscripts/run_tests.sh

@@ -1,4 +0,0 @@
-#!/usr/bin/env sh
-
->&2 echo 'run_tests.sh is deprecated. Please use `devscripts/run_tests.py` instead'
-python3 devscripts/run_tests.py "$1"

devscripts/set-variant.py

@@ -30,7 +30,7 @@ def property_setter(name, value):
 opts = parse_options()
 transform = compose_functions(
     property_setter('VARIANT', opts.variant),
-    property_setter('UPDATE_HINT', opts.update_message)
+    property_setter('UPDATE_HINT', opts.update_message),
 )
 
 write_file(VERSION_FILE, transform(read_file(VERSION_FILE)))

devscripts/update-version.py

@@ -24,7 +24,7 @@ def get_new_version(version, revision):
     else:
         old_version = read_version().split('.')
         if version.split('.') == old_version[:3]:
-            revision = str(int((old_version + [0])[3]) + 1)
+            revision = str(int(([*old_version, 0])[3]) + 1)
 
     return f'{version}.{revision}' if revision else version
 

devscripts/zsh-completion.py

@@ -9,15 +9,15 @@
 
 import yt_dlp
 
-ZSH_COMPLETION_FILE = "completions/zsh/_yt-dlp"
+ZSH_COMPLETION_FILE = 'completions/zsh/_yt-dlp'
-ZSH_COMPLETION_TEMPLATE = "devscripts/zsh-completion.in"
+ZSH_COMPLETION_TEMPLATE = 'devscripts/zsh-completion.in'
 
 
 def build_completion(opt_parser):
     opts = [opt for group in opt_parser.option_groups
             for opt in group.option_list]
-    opts_file = [opt for opt in opts if opt.metavar == "FILE"]
+    opts_file = [opt for opt in opts if opt.metavar == 'FILE']
-    opts_dir = [opt for opt in opts if opt.metavar == "DIR"]
+    opts_dir = [opt for opt in opts if opt.metavar == 'DIR']
 
     fileopts = []
     for opt in opts_file:
@@ -38,11 +38,11 @@ def build_completion(opt_parser):
     with open(ZSH_COMPLETION_TEMPLATE) as f:
         template = f.read()
 
-    template = template.replace("{{fileopts}}", "|".join(fileopts))
+    template = template.replace('{{fileopts}}', '|'.join(fileopts))
-    template = template.replace("{{diropts}}", "|".join(diropts))
+    template = template.replace('{{diropts}}', '|'.join(diropts))
-    template = template.replace("{{flags}}", " ".join(flags))
+    template = template.replace('{{flags}}', ' '.join(flags))
 
-    with open(ZSH_COMPLETION_FILE, "w") as f:
+    with open(ZSH_COMPLETION_FILE, 'w') as f:
         f.write(template)
 
 

pyinst.py

@@ -1,17 +0,0 @@
-#!/usr/bin/env python3
-
-# Allow execution from anywhere
-import os
-import sys
-
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-
-import warnings
-
-from bundle.pyinstaller import main
-
-warnings.warn(DeprecationWarning('`pyinst.py` is deprecated and will be removed in a future version. '
-                                 'Use `bundle.pyinstaller` instead'))
-
-if __name__ == '__main__':
-    main()

pyproject.toml

@@ -46,7 +46,7 @@ dependencies = [
     "certifi",
     "mutagen",
     "pycryptodomex",
-    "requests>=2.31.0,<3",
+    "requests>=2.32.2,<3",
     "urllib3>=1.26.17,<3",
     "websockets>=12.0",
 ]
@@ -62,18 +62,27 @@ build = [
     "build",
     "hatchling",
     "pip",
+    "setuptools",
     "wheel",
 ]
 dev = [
-    "flake8",
+    "pre-commit",
-    "isort",
+    "yt-dlp[static-analysis]",
-    "pytest",
+    "yt-dlp[test]",
+]
+static-analysis = [
+    "autopep8~=2.0",
+    "ruff~=0.4.4",
+]
+test = [
+    "pytest~=8.1",
 ]
 pyinstaller = [
-    "pyinstaller>=6.3; sys_platform!='darwin'",
+    "pyinstaller>=6.7.0",  # for compat with setuptools>=70
-    "pyinstaller==5.13.2; sys_platform=='darwin'",  # needed for curl_cffi
+]
+py2exe = [
+    "py2exe>=0.12",
 ]
-py2exe = ["py2exe>=0.12"]
 
 [project.urls]
 Documentation = "https://github.com/yt-dlp/yt-dlp#readme"
@@ -122,3 +131,253 @@ artifacts = ["/yt_dlp/extractor/lazy_extractors.py"]
 [tool.hatch.version]
 path = "yt_dlp/version.py"
 pattern = "_pkg_version = '(?P<version>[^']+)'"
+
+[tool.hatch.envs.default]
+features = ["curl-cffi", "default"]
+dependencies = ["pre-commit"]
+path = ".venv"
+installer = "uv"
+
+[tool.hatch.envs.default.scripts]
+setup = "pre-commit install --config .pre-commit-hatch.yaml"
+yt-dlp = "python -Werror -Xdev -m yt_dlp {args}"
+
+[tool.hatch.envs.hatch-static-analysis]
+detached = true
+features = ["static-analysis"]
+dependencies = []  # override hatch ruff version
+config-path = "pyproject.toml"
+
+[tool.hatch.envs.hatch-static-analysis.scripts]
+format-check = "autopep8 --diff {args:.}"
+format-fix = "autopep8 --in-place {args:.}"
+lint-check = "ruff check {args:.}"
+lint-fix = "ruff check --fix {args:.}"
+
+[tool.hatch.envs.hatch-test]
+features = ["test"]
+dependencies = [
+    "pytest-randomly~=3.15",
+    "pytest-rerunfailures~=14.0",
+    "pytest-xdist[psutil]~=3.5",
+]
+
+[tool.hatch.envs.hatch-test.scripts]
+run = "python -m devscripts.run_tests {args}"
+run-cov = "echo Code coverage not implemented && exit 1"
+
+[[tool.hatch.envs.hatch-test.matrix]]
+python = [
+    "3.8",
+    "3.9",
+    "3.10",
+    "3.11",
+    "3.12",
+    "pypy3.8",
+    "pypy3.9",
+    "pypy3.10",
+]
+
+[tool.ruff]
+line-length = 120
+
+[tool.ruff.lint]
+ignore = [
+    "E402",    # module-import-not-at-top-of-file
+    "E501",    # line-too-long
+    "E731",    # lambda-assignment
+    "E741",    # ambiguous-variable-name
+    "UP036",   # outdated-version-block
+    "B006",    # mutable-argument-default
+    "B008",    # function-call-in-default-argument
+    "B011",    # assert-false
+    "B017",    # assert-raises-exception
+    "B023",    # function-uses-loop-variable (false positives)
+    "B028",    # no-explicit-stacklevel
+    "B904",    # raise-without-from-inside-except
+    "C401",    # unnecessary-generator-set
+    "C402",    # unnecessary-generator-dict
+    "PIE790",  # unnecessary-placeholder
+    "SIM102",  # collapsible-if
+    "SIM108",  # if-else-block-instead-of-if-exp
+    "SIM112",  # uncapitalized-environment-variables
+    "SIM113",  # enumerate-for-loop
+    "SIM114",  # if-with-same-arms
+    "SIM115",  # open-file-with-context-handler
+    "SIM117",  # multiple-with-statements
+    "SIM223",  # expr-and-false
+    "SIM300",  # yoda-conditions
+    "TD001",   # invalid-todo-tag
+    "TD002",   # missing-todo-author
+    "TD003",   # missing-todo-link
+    "PLE0604", # invalid-all-object (false positives)
+    "PLW0603", # global-statement
+    "PLW1510", # subprocess-run-without-check
+    "PLW2901", # redefined-loop-name
+    "RUF001",  # ambiguous-unicode-character-string
+    "RUF012",  # mutable-class-default
+    "RUF100",  # unused-noqa (flake8 has slightly different behavior)
+]
+select = [
+    "E",      # pycodestyle Error
+    "W",      # pycodestyle Warning
+    "F",      # Pyflakes
+    "I",      # isort
+    "Q",      # flake8-quotes
+    "N803",   # invalid-argument-name
+    "N804",   # invalid-first-argument-name-for-class-method
+    "UP",     # pyupgrade
+    "B",      # flake8-bugbear
+    "A",      # flake8-builtins
+    "COM",    # flake8-commas
+    "C4",     # flake8-comprehensions
+    "FA",     # flake8-future-annotations
+    "ISC",    # flake8-implicit-str-concat
+    "ICN003", # banned-import-from
+    "PIE",    # flake8-pie
+    "T20",    # flake8-print
+    "RSE",    # flake8-raise
+    "RET504", # unnecessary-assign
+    "SIM",    # flake8-simplify
+    "TID251", # banned-api
+    "TD",     # flake8-todos
+    "PLC",    # Pylint Convention
+    "PLE",    # Pylint Error
+    "PLW",    # Pylint Warning
+    "RUF",    # Ruff-specific rules
+]
+
+[tool.ruff.lint.per-file-ignores]
+"devscripts/lazy_load_template.py" = [
+    "F401",   # unused-import
+]
+"!yt_dlp/extractor/**.py" = [
+    "I",      # isort
+    "ICN003", # banned-import-from
+    "T20",    # flake8-print
+    "A002",   # builtin-argument-shadowing
+    "C408",   # unnecessary-collection-call
+]
+"yt_dlp/jsinterp.py" = [
+    "UP031",  # printf-string-formatting
+]
+
+[tool.ruff.lint.isort]
+known-first-party = [
+    "bundle",
+    "devscripts",
+    "test",
+]
+relative-imports-order = "closest-to-furthest"
+
+[tool.ruff.lint.flake8-quotes]
+docstring-quotes = "double"
+multiline-quotes = "single"
+inline-quotes = "single"
+avoid-escape = false
+
+[tool.ruff.lint.pep8-naming]
+classmethod-decorators = [
+    "yt_dlp.utils.classproperty",
+]
+
+[tool.ruff.lint.flake8-import-conventions]
+banned-from = [
+    "base64",
+    "datetime",
+    "functools",
+    "glob",
+    "hashlib",
+    "itertools",
+    "json",
+    "math",
+    "os",
+    "pathlib",
+    "random",
+    "re",
+    "string",
+    "sys",
+    "time",
+    "urllib",
+    "uuid",
+    "xml",
+]
+
+[tool.ruff.lint.flake8-tidy-imports.banned-api]
+"yt_dlp.compat.compat_str".msg = "Use `str` instead."
+"yt_dlp.compat.compat_b64decode".msg = "Use `base64.b64decode` instead."
+"yt_dlp.compat.compat_urlparse".msg = "Use `urllib.parse` instead."
+"yt_dlp.compat.compat_parse_qs".msg = "Use `urllib.parse.parse_qs` instead."
+"yt_dlp.compat.compat_urllib_parse_unquote".msg = "Use `urllib.parse.unquote` instead."
+"yt_dlp.compat.compat_urllib_parse_urlencode".msg = "Use `urllib.parse.urlencode` instead."
+"yt_dlp.compat.compat_urllib_parse_urlparse".msg = "Use `urllib.parse.urlparse` instead."
+"yt_dlp.compat.compat_shlex_quote".msg = "Use `yt_dlp.utils.shell_quote` instead."
+"yt_dlp.utils.error_to_compat_str".msg = "Use `str` instead."
+
+[tool.autopep8]
+max_line_length = 120
+recursive = true
+exit-code = true
+jobs = 0
+select = [
+    "E101",
+    "E112",
+    "E113",
+    "E115",
+    "E116",
+    "E117",
+    "E121",
+    "E122",
+    "E123",
+    "E124",
+    "E125",
+    "E126",
+    "E127",
+    "E128",
+    "E129",
+    "E131",
+    "E201",
+    "E202",
+    "E203",
+    "E211",
+    "E221",
+    "E222",
+    "E223",
+    "E224",
+    "E225",
+    "E226",
+    "E227",
+    "E228",
+    "E231",
+    "E241",
+    "E242",
+    "E251",
+    "E252",
+    "E261",
+    "E262",
+    "E265",
+    "E266",
+    "E271",
+    "E272",
+    "E273",
+    "E274",
+    "E275",
+    "E301",
+    "E302",
+    "E303",
+    "E304",
+    "E305",
+    "E306",
+    "E502",
+    "E701",
+    "E702",
+    "E704",
+    "W391",
+    "W504",
+]
+
+[tool.pytest.ini_options]
+addopts = "-ra -v --strict-markers"
+markers = [
+    "download",
+]

setup.cfg

@@ -14,12 +14,6 @@ remove-duplicate-keys = true
 remove-unused-variables = true
 
 
-[tool:pytest]
-addopts = -ra -v --strict-markers
-markers =
-    download
-
-
 [tox:tox]
 skipsdist = true
 envlist = py{38,39,310,311,312},pypy{38,39,310}

setup.py

@@ -1,36 +0,0 @@
-#!/usr/bin/env python3
-
-# Allow execution from anywhere
-import os
-import sys
-
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
-
-import warnings
-
-
-if sys.argv[1:2] == ['py2exe']:
-    warnings.warn(DeprecationWarning('`setup.py py2exe` is deprecated and will be removed in a future version. '
-                                     'Use `bundle.py2exe` instead'))
-
-    import bundle.py2exe
-
-    bundle.py2exe.main()
-
-elif 'build_lazy_extractors' in sys.argv:
-    warnings.warn(DeprecationWarning('`setup.py build_lazy_extractors` is deprecated and will be removed in a future version. '
-                                     'Use `devscripts.make_lazy_extractors` instead'))
-
-    import subprocess
-
-    os.chdir(sys.path[0])
-    print('running build_lazy_extractors')
-    subprocess.run([sys.executable, 'devscripts/make_lazy_extractors.py'])
-
-else:
-
-    print(
-        'ERROR: Building by calling `setup.py` is deprecated. '
-        'Use a build frontend like `build` instead. ',
-        'Refer to  https://build.pypa.io  for more info', file=sys.stderr)
-    sys.exit(1)

supportedsites.md

@@ -14,7 +14,6 @@ # Supported sites
  - **6play**
  - **7plus**
  - **8tracks**
- - **91porn**
  - **9c9media**
  - **9gag**: 9GAG
  - **9News**
@@ -220,7 +219,7 @@ # Supported sites
  - **BusinessInsider**
  - **BuzzFeed**
  - **BYUtv**: (**Currently broken**)
- - **CableAV**
+ - **CaffeineTV**
  - **Callin**
  - **Caltrans**
  - **CAM4**
@@ -333,6 +332,8 @@ # Supported sites
  - **DailyWirePodcast**
  - **damtomo:record**
  - **damtomo:video**
+ - **dangalplay**: [*dangalplay*](## "netrc machine")
+ - **dangalplay:season**: [*dangalplay*](## "netrc machine")
  - **daum.net**
  - **daum.net:clip**
  - **daum.net:playlist**
@@ -396,7 +397,6 @@ # Supported sites
  - **EinsUndEinsTV**: [*1und1tv*](## "netrc machine")
  - **EinsUndEinsTVLive**: [*1und1tv*](## "netrc machine")
  - **EinsUndEinsTVRecordings**: [*1und1tv*](## "netrc machine")
- - **Einthusan**
  - **eitb.tv**
  - **ElementorEmbed**
  - **Elonet**
@@ -498,6 +498,7 @@ # Supported sites
  - **GameStar**
  - **Gaskrank**
  - **Gazeta**: (**Currently broken**)
+ - **GBNews**: GB News clips, features and live streams
  - **GDCVault**: [*gdcvault*](## "netrc machine") (**Currently broken**)
  - **GediDigital**
  - **gem.cbc.ca**: [*cbcgem*](## "netrc machine")
@@ -527,6 +528,7 @@ # Supported sites
  - **GMANetworkVideo**
  - **Go**
  - **GoDiscovery**
+ - **GodResource**
  - **GodTube**: (**Currently broken**)
  - **Gofile**
  - **Golem**
@@ -630,11 +632,11 @@ # Supported sites
  - **iwara:user**: [*iwara*](## "netrc machine")
  - **Ixigua**
  - **Izlesene**
- - **Jable**
- - **JablePlaylist**
  - **Jamendo**
  - **JamendoAlbum**
  - **JeuxVideo**: (**Currently broken**)
+ - **jiocinema**: [*jiocinema*](## "netrc machine")
+ - **jiocinema:series**: [*jiocinema*](## "netrc machine")
  - **jiosaavn:album**
  - **jiosaavn:playlist**
  - **jiosaavn:song**
@@ -974,6 +976,7 @@ # Supported sites
  - **NRKTVSeason**
  - **NRKTVSeries**
  - **NRLTV**: (**Currently broken**)
+ - **nts.live**
  - **ntv.ru**
  - **NubilesPorn**: [*nubiles-porn*](## "netrc machine")
  - **nuum:live**
@@ -1015,7 +1018,6 @@ # Supported sites
  - **orf:on**
  - **orf:podcast**
  - **orf:radio**
- - **orf:tvthek**: ORF TVthek
  - **OsnatelTV**: [*osnateltv*](## "netrc machine")
  - **OsnatelTVLive**: [*osnateltv*](## "netrc machine")
  - **OsnatelTVRecordings**: [*osnateltv*](## "netrc machine")
@@ -1394,6 +1396,10 @@ # Supported sites
  - **SztvHu**
  - **t-online.de**: (**Currently broken**)
  - **Tagesschau**: (**Currently broken**)
+ - **TapTapApp**
+ - **TapTapAppIntl**
+ - **TapTapMoment**
+ - **TapTapPostIntl**
  - **Tass**: (**Currently broken**)
  - **TBS**
  - **TBSJPEpisode**
@@ -1412,7 +1418,7 @@ # Supported sites
  - **TedSeries**
  - **TedTalk**
  - **Tele13**
- - **Tele5**: (**Currently broken**)
+ - **Tele5**
  - **TeleBruxelles**
  - **TelecaribePlay**
  - **Telecinco**: telecinco.es, cuatro.com and mediaset.es
@@ -1452,11 +1458,12 @@ # Supported sites
  - **ThreeSpeak**
  - **ThreeSpeakUser**
  - **TikTok**
+ - **tiktok:collection**
  - **tiktok:effect**: (**Currently broken**)
  - **tiktok:live**
  - **tiktok:sound**: (**Currently broken**)
  - **tiktok:tag**: (**Currently broken**)
- - **tiktok:user**: (**Currently broken**)
+ - **tiktok:user**
  - **TLC**
  - **TMZ**
  - **TNAFlix**
@@ -1501,7 +1508,7 @@ # Supported sites
  - **tv2play.hu**
  - **tv2playseries.hu**
  - **TV4**: tv4.se and tv4play.se
- - **TV5MondePlus**: TV5MONDE+
+ - **TV5MONDE**
  - **tv5unis**
  - **tv5unis:video**
  - **tv8.it**
@@ -1639,8 +1646,6 @@ # Supported sites
  - **voicy**: (**Currently broken**)
  - **voicy:channel**: (**Currently broken**)
  - **VolejTV**
- - **Voot**: [*voot*](## "netrc machine") (**Currently broken**)
- - **VootSeries**: [*voot*](## "netrc machine") (**Currently broken**)
  - **VoxMedia**
  - **VoxMediaVolume**
  - **vpro**: npo.nl, ntr.nl, omroepwnl.nl, zapp.nl and npo3.nl
@@ -1715,10 +1720,10 @@ # Supported sites
  - **wykop:​post:comment**
  - **Xanimu**
  - **XboxClips**
- - **XFileShare**: XFileShare based sites: Aparat, ClipWatching, GoUnlimited, GoVid, HolaVid, Streamty, TheVideoBee, Uqload, VidBom, vidlo, VidLocker, VidShare, VUp, WolfStream, XVideoSharing
  - **XHamster**
  - **XHamsterEmbed**
  - **XHamsterUser**
+ - **XiaoHongShu**: 小红书
  - **ximalaya**: 喜马拉雅FM
  - **ximalaya:album**: 喜马拉雅FM 专辑
  - **xinpianchang**: xinpianchang.com (**Currently broken**)
@@ -1749,8 +1754,12 @@ # Supported sites
  - **YouNowLive**
  - **YouNowMoment**
  - **YouPorn**
- - **YourPorn**
+ - **YouPornCategory**: YouPorn category, with sorting, filtering and pagination
- - **YourUpload**
+ - **YouPornChannel**: YouPorn channel, with sorting and pagination
+ - **YouPornCollection**: YouPorn collection (user playlist), with sorting and pagination
+ - **YouPornStar**: YouPorn Pornstar, with description, sorting and pagination
+ - **YouPornTag**: YouPorn tag (porntags), with sorting, filtering and pagination
+ - **YouPornVideos**: YouPorn video (browse) playlists, with sorting, filtering and pagination
  - **youtube**: YouTube
  - **youtube:clip**
  - **youtube:favorites**: YouTube liked videos; ":ytfav" keyword (requires cookies)

test/conftest.py

@@ -1,4 +1,3 @@
-import functools
 import inspect
 
 import pytest
@@ -10,7 +9,9 @@
 
 @pytest.fixture
 def handler(request):
-    RH_KEY = request.param
+    RH_KEY = getattr(request, 'param', None)
+    if not RH_KEY:
+        return
     if inspect.isclass(RH_KEY) and issubclass(RH_KEY, RequestHandler):
         handler = RH_KEY
     elif RH_KEY in _REQUEST_HANDLERS:
@@ -18,9 +19,46 @@ def handler(request):
     else:
         pytest.skip(f'{RH_KEY} request handler is not available')
 
-    return functools.partial(handler, logger=FakeLogger)
+    class HandlerWrapper(handler):
+        RH_KEY = handler.RH_KEY
+
+        def __init__(self, **kwargs):
+            super().__init__(logger=FakeLogger, **kwargs)
+
+    return HandlerWrapper
 
 
-def validate_and_send(rh, req):
+@pytest.fixture(autouse=True)
-    rh.validate(req)
+def skip_handler(request, handler):
-    return rh.send(req)
+    """usage: pytest.mark.skip_handler('my_handler', 'reason')"""
+    for marker in request.node.iter_markers('skip_handler'):
+        if marker.args[0] == handler.RH_KEY:
+            pytest.skip(marker.args[1] if len(marker.args) > 1 else '')
+
+
+@pytest.fixture(autouse=True)
+def skip_handler_if(request, handler):
+    """usage: pytest.mark.skip_handler_if('my_handler', lambda request: True, 'reason')"""
+    for marker in request.node.iter_markers('skip_handler_if'):
+        if marker.args[0] == handler.RH_KEY and marker.args[1](request):
+            pytest.skip(marker.args[2] if len(marker.args) > 2 else '')
+
+
+@pytest.fixture(autouse=True)
+def skip_handlers_if(request, handler):
+    """usage: pytest.mark.skip_handlers_if(lambda request, handler: True, 'reason')"""
+    for marker in request.node.iter_markers('skip_handlers_if'):
+        if handler and marker.args[0](request, handler):
+            pytest.skip(marker.args[1] if len(marker.args) > 1 else '')
+
+
+def pytest_configure(config):
+    config.addinivalue_line(
+        'markers', 'skip_handler(handler): skip test for the given handler',
+    )
+    config.addinivalue_line(
+        'markers', 'skip_handler_if(handler): skip test for the given handler if condition is true',
+    )
+    config.addinivalue_line(
+        'markers', 'skip_handlers_if(handler): skip test for handlers when the condition is true',
+    )

test/helper.py

@@ -16,8 +16,8 @@
     import pytest
     is_download_test = pytest.mark.download
 else:
-    def is_download_test(testClass):
+    def is_download_test(test_class):
-        return testClass
+        return test_class
 
 
 def get_params(override=None):
@@ -45,10 +45,10 @@ def try_rm(filename):
 
 
 def report_warning(message, *args, **kwargs):
-    '''
+    """
     Print the message to stderr, it will be prefixed with 'WARNING:'
     If stderr is a tty file the 'WARNING:' will be colored
-    '''
+    """
     if sys.stderr.isatty() and compat_os_name != 'nt':
         _msg_header = '\033[0;33mWARNING:\033[0m'
     else:
@@ -138,15 +138,14 @@ def expect_value(self, got, expected, field):
     elif isinstance(expected, list) and isinstance(got, list):
         self.assertEqual(
             len(expected), len(got),
-            'Expect a list of length %d, but got a list of length %d for field %s' % (
+            f'Expect a list of length {len(expected)}, but got a list of length {len(got)} for field {field}')
-                len(expected), len(got), field))
         for index, (item_got, item_expected) in enumerate(zip(got, expected)):
             type_got = type(item_got)
             type_expected = type(item_expected)
             self.assertEqual(
                 type_expected, type_got,
-                'Type mismatch for list item at index %d for field %s, expected %r, got %r' % (
+                f'Type mismatch for list item at index {index} for field {field}, '
-                    index, field, type_expected, type_got))
+                f'expected {type_expected!r}, got {type_got!r}')
             expect_value(self, item_got, item_expected, field)
     else:
         if isinstance(expected, str) and expected.startswith('md5:'):
@@ -224,7 +223,7 @@ def sanitize(key, value):
         test_info_dict.pop('display_id')
 
     # Remove deprecated fields
-    for old in YoutubeDL._deprecated_multivalue_fields.keys():
+    for old in YoutubeDL._deprecated_multivalue_fields:
         test_info_dict.pop(old, None)
 
     # release_year may be generated from release_date
@@ -246,11 +245,11 @@ def expect_info_dict(self, got_dict, expected_dict):
         if expected_dict.get('ext'):
             mandatory_fields.extend(('url', 'ext'))
         for key in mandatory_fields:
-            self.assertTrue(got_dict.get(key), 'Missing mandatory field %s' % key)
+            self.assertTrue(got_dict.get(key), f'Missing mandatory field {key}')
     # Check for mandatory fields that are automatically set by YoutubeDL
     if got_dict.get('_type', 'video') == 'video':
         for key in ['webpage_url', 'extractor', 'extractor_key']:
-            self.assertTrue(got_dict.get(key), 'Missing field: %s' % key)
+            self.assertTrue(got_dict.get(key), f'Missing field: {key}')
 
     test_info_dict = sanitize_got_info_dict(got_dict)
 
@@ -258,7 +257,7 @@ def expect_info_dict(self, got_dict, expected_dict):
     if missing_keys:
         def _repr(v):
             if isinstance(v, str):
-                return "'%s'" % v.replace('\\', '\\\\').replace("'", "\\'").replace('\n', '\\n')
+                return "'{}'".format(v.replace('\\', '\\\\').replace("'", "\\'").replace('\n', '\\n'))
             elif isinstance(v, type):
                 return v.__name__
             else:
@@ -275,8 +274,7 @@ def _repr(v):
         write_string(info_dict_str.replace('\n', '\n        '), out=sys.stderr)
         self.assertFalse(
             missing_keys,
-            'Missing keys in test definition: %s' % (
+            'Missing keys in test definition: {}'.format(', '.join(sorted(missing_keys))))
-                ', '.join(sorted(missing_keys))))
 
 
 def assertRegexpMatches(self, text, regexp, msg=None):
@@ -285,9 +283,9 @@ def assertRegexpMatches(self, text, regexp, msg=None):
     else:
         m = re.match(regexp, text)
         if not m:
-            note = 'Regexp didn\'t match: %r not found' % (regexp)
+            note = f'Regexp didn\'t match: {regexp!r} not found'
             if len(text) < 1000:
-                note += ' in %r' % text
+                note += f' in {text!r}'
             if msg is None:
                 msg = note
             else:
@@ -310,7 +308,7 @@ def assertLessEqual(self, got, expected, msg=None):
 
 
 def assertEqual(self, got, expected, msg=None):
-    if not (got == expected):
+    if got != expected:
         if msg is None:
             msg = f'{got!r} not equal to {expected!r}'
         self.assertTrue(got == expected, msg)
@@ -338,3 +336,8 @@ def http_server_port(httpd):
 def verify_address_availability(address):
     if find_available_port(address) is None:
         pytest.skip(f'Unable to bind to source address {address} (address may not exist)')
+
+
+def validate_and_send(rh, req):
+    rh.validate(req)
+    return rh.send(req)

test/test_InfoExtractor.py

@@ -262,19 +262,19 @@ def test_search_json_ld_realworld(self):
                 ''',
                 {
                     'chapters': [
-                        {"title": "Explosie Turnhout", "start_time": 70, "end_time": 440},
+                        {'title': 'Explosie Turnhout', 'start_time': 70, 'end_time': 440},
-                        {"title": "Jaarwisseling", "start_time": 440, "end_time": 1179},
+                        {'title': 'Jaarwisseling', 'start_time': 440, 'end_time': 1179},
-                        {"title": "Natuurbranden Colorado", "start_time": 1179, "end_time": 1263},
+                        {'title': 'Natuurbranden Colorado', 'start_time': 1179, 'end_time': 1263},
-                        {"title": "Klimaatverandering", "start_time": 1263, "end_time": 1367},
+                        {'title': 'Klimaatverandering', 'start_time': 1263, 'end_time': 1367},
-                        {"title": "Zacht weer", "start_time": 1367, "end_time": 1383},
+                        {'title': 'Zacht weer', 'start_time': 1367, 'end_time': 1383},
-                        {"title": "Financiële balans", "start_time": 1383, "end_time": 1484},
+                        {'title': 'Financiële balans', 'start_time': 1383, 'end_time': 1484},
-                        {"title": "Club Brugge", "start_time": 1484, "end_time": 1575},
+                        {'title': 'Club Brugge', 'start_time': 1484, 'end_time': 1575},
-                        {"title": "Mentale gezondheid bij topsporters", "start_time": 1575, "end_time": 1728},
+                        {'title': 'Mentale gezondheid bij topsporters', 'start_time': 1575, 'end_time': 1728},
-                        {"title": "Olympische Winterspelen", "start_time": 1728, "end_time": 1873},
+                        {'title': 'Olympische Winterspelen', 'start_time': 1728, 'end_time': 1873},
-                        {"title": "Sober oudjaar in Nederland", "start_time": 1873, "end_time": 2079.23}
+                        {'title': 'Sober oudjaar in Nederland', 'start_time': 1873, 'end_time': 2079.23},
                     ],
-                    'title': 'Het journaal - Aflevering 365 (Seizoen 2021)'
+                    'title': 'Het journaal - Aflevering 365 (Seizoen 2021)',
-                }, {}
+                }, {},
             ),
             (
                 # test multiple thumbnails in a list
@@ -301,13 +301,13 @@ def test_search_json_ld_realworld(self):
                     'thumbnails': [{'url': 'https://www.rainews.it/cropgd/640x360/dl/img/2021/12/30/1640886376927_GettyImages.jpg'}],
                 },
                 {},
-            )
+            ),
         ]
         for html, expected_dict, search_json_ld_kwargs in _TESTS:
             expect_dict(
                 self,
                 self.ie._search_json_ld(html, None, **search_json_ld_kwargs),
-                expected_dict
+                expected_dict,
             )
 
     def test_download_json(self):
@@ -366,7 +366,7 @@ def test_parse_html5_media_entries(self):
                     'height': 740,
                     'tbr': 1500,
                 }],
-                'thumbnail': '//pics.r18.com/digital/amateur/mgmr105/mgmr105jp.jpg'
+                'thumbnail': '//pics.r18.com/digital/amateur/mgmr105/mgmr105jp.jpg',
             })
 
         # from https://www.csfd.cz/
@@ -419,9 +419,9 @@ def test_parse_html5_media_entries(self):
                     'height': 1080,
                 }],
                 'subtitles': {
-                    'cs': [{'url': 'https://video.csfd.cz/files/subtitles/163/344/163344115_4c388b.srt'}]
+                    'cs': [{'url': 'https://video.csfd.cz/files/subtitles/163/344/163344115_4c388b.srt'}],
                 },
-                'thumbnail': 'https://img.csfd.cz/files/images/film/video/preview/163/344/163344118_748d20.png?h360'
+                'thumbnail': 'https://img.csfd.cz/files/images/film/video/preview/163/344/163344118_748d20.png?h360',
             })
 
         # from https://tamasha.com/v/Kkdjw
@@ -452,7 +452,7 @@ def test_parse_html5_media_entries(self):
                     'ext': 'mp4',
                     'format_id': '144p',
                     'height': 144,
-                }]
+                }],
             })
 
         # from https://www.directvnow.com
@@ -470,7 +470,7 @@ def test_parse_html5_media_entries(self):
                 'formats': [{
                     'ext': 'mp4',
                     'url': 'https://cdn.directv.com/content/dam/dtv/prod/website_directvnow-international/videos/DTVN_hdr_HBO_v3.mp4',
-                }]
+                }],
             })
 
         # from https://www.directvnow.com
@@ -488,7 +488,7 @@ def test_parse_html5_media_entries(self):
                 'formats': [{
                     'url': 'https://cdn.directv.com/content/dam/dtv/prod/website_directvnow-international/videos/DTVN_hdr_HBO_v3.mp4',
                     'ext': 'mp4',
-                }]
+                }],
             })
 
         # from https://www.klarna.com/uk/
@@ -547,8 +547,8 @@ def test_extract_jwplayer_data_realworld(self):
                 'id': 'XEgvuql4',
                 'formats': [{
                     'url': 'rtmp://192.138.214.154/live/sjclive',
-                    'ext': 'flv'
+                    'ext': 'flv',
-                }]
+                }],
             })
 
         # from https://www.pornoxo.com/videos/7564/striptease-from-sexy-secretary/
@@ -588,8 +588,8 @@ def test_extract_jwplayer_data_realworld(self):
                 'thumbnail': 'https://t03.vipstreamservice.com/thumbs/pxo-full/2009-12/14/a4b2157147afe5efa93ce1978e0265289c193874e02597.flv-full-13.jpg',
                 'formats': [{
                     'url': 'https://cdn.pornoxo.com/key=MF+oEbaxqTKb50P-w9G3nA,end=1489689259,ip=104.199.146.27/ip=104.199.146.27/speed=6573765/buffer=3.0/2009-12/4b2157147afe5efa93ce1978e0265289c193874e02597.flv',
-                    'ext': 'flv'
+                    'ext': 'flv',
-                }]
+                }],
             })
 
         # from http://www.indiedb.com/games/king-machine/videos
@@ -610,12 +610,12 @@ def test_extract_jwplayer_data_realworld(self):
                 'formats': [{
                     'url': 'http://cdn.dbolical.com/cache/videos/games/1/50/49678/encode_mp4/king-machine-trailer.mp4',
                     'height': 360,
-                    'ext': 'mp4'
+                    'ext': 'mp4',
                 }, {
                     'url': 'http://cdn.dbolical.com/cache/videos/games/1/50/49678/encode720p_mp4/king-machine-trailer.mp4',
                     'height': 720,
-                    'ext': 'mp4'
+                    'ext': 'mp4',
-                }]
+                }],
             })
 
     def test_parse_m3u8_formats(self):
@@ -866,7 +866,7 @@ def test_parse_m3u8_formats(self):
                     'height': 1080,
                     'vcodec': 'avc1.64002a',
                 }],
-                {}
+                {},
             ),
             (
                 'bipbop_16x9',
@@ -990,45 +990,45 @@ def test_parse_m3u8_formats(self):
                     'en': [{
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/eng/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }, {
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/eng_forced/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }],
                     'fr': [{
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/fra/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }, {
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/fra_forced/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }],
                     'es': [{
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/spa/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }, {
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/spa_forced/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }],
                     'ja': [{
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/jpn/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }, {
                         'url': 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/jpn_forced/prog_index.m3u8',
                         'ext': 'vtt',
-                        'protocol': 'm3u8_native'
+                        'protocol': 'm3u8_native',
                     }],
-                }
+                },
             ),
         ]
 
         for m3u8_file, m3u8_url, expected_formats, expected_subs in _TEST_CASES:
-            with open('./test/testdata/m3u8/%s.m3u8' % m3u8_file, encoding='utf-8') as f:
+            with open(f'./test/testdata/m3u8/{m3u8_file}.m3u8', encoding='utf-8') as f:
                 formats, subs = self.ie._parse_m3u8_formats_and_subtitles(
                     f.read(), m3u8_url, ext='mp4')
                 self.ie._sort_formats(formats)
@@ -1366,14 +1366,14 @@ def test_parse_mpd_formats(self):
                             'url': 'https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd',
                             'fragment_base_url': 'https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/',
                             'protocol': 'http_dash_segments',
-                        }
+                        },
-                    ]
+                    ],
                 },
-            )
+            ),
         ]
 
         for mpd_file, mpd_url, mpd_base_url, expected_formats, expected_subtitles in _TEST_CASES:
-            with open('./test/testdata/mpd/%s.mpd' % mpd_file, encoding='utf-8') as f:
+            with open(f'./test/testdata/mpd/{mpd_file}.mpd', encoding='utf-8') as f:
                 formats, subtitles = self.ie._parse_mpd_formats_and_subtitles(
                     compat_etree_fromstring(f.read().encode()),
                     mpd_base_url=mpd_base_url, mpd_url=mpd_url)
@@ -1408,7 +1408,7 @@ def test_parse_ism_formats(self):
                         'sampling_rate': 48000,
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video-100',
@@ -1431,7 +1431,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401FDA0544EFFC2D002CBC40000003004000000C03C60CA80000000168EF32C8',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video-326',
@@ -1454,7 +1454,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401FDA0241FE23FFC3BC83BA44000003000400000300C03C60CA800000000168EF32C8',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video-698',
@@ -1477,7 +1477,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401FDA0350BFB97FF06AF06AD1000003000100000300300F1832A00000000168EF32C8',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video-1493',
@@ -1500,7 +1500,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401FDA011C3DE6FFF0D890D871000003000100000300300F1832A00000000168EF32C8',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video-4482',
@@ -1523,7 +1523,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401FDA01A816F97FFC1ABC1AB440000003004000000C03C60CA80000000168EF32C8',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }],
                 {
@@ -1538,10 +1538,10 @@ def test_parse_ism_formats(self):
                                 'duration': 8880746666,
                                 'timescale': 10000000,
                                 'fourcc': 'TTML',
-                                'codec_private_data': ''
+                                'codec_private_data': '',
-                            }
+                            },
-                        }
+                        },
-                    ]
+                    ],
                 },
             ),
             (
@@ -1571,7 +1571,7 @@ def test_parse_ism_formats(self):
                         'sampling_rate': 48000,
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'audio_deu_1-224',
@@ -1597,7 +1597,7 @@ def test_parse_ism_formats(self):
                         'sampling_rate': 48000,
                         'channels': 6,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-23',
@@ -1622,7 +1622,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '000000016742C00CDB06077E5C05A808080A00000300020000030009C0C02EE0177CC6300F142AE00000000168CA8DC8',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-403',
@@ -1647,7 +1647,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D4014E98323B602D4040405000003000100000300320F1429380000000168EAECF2',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-680',
@@ -1672,7 +1672,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401EE981405FF2E02D4040405000000300100000030320F162D3800000000168EAECF2',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-1253',
@@ -1698,7 +1698,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401EE981405FF2E02D4040405000000300100000030320F162D3800000000168EAECF2',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-2121',
@@ -1723,7 +1723,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D401EECA0601BD80B50101014000003000400000300C83C58B6580000000168E93B3C80',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-3275',
@@ -1748,7 +1748,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D4020ECA02802DD80B501010140000003004000000C83C60C65800000000168E93B3C80',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-5300',
@@ -1773,7 +1773,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D4028ECA03C0113F2E02D4040405000000300100000030320F18319600000000168E93B3C80',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }, {
                     'format_id': 'video_deu-8079',
@@ -1798,7 +1798,7 @@ def test_parse_ism_formats(self):
                         'codec_private_data': '00000001674D4028ECA03C0113F2E02D4040405000000300100000030320F18319600000000168E93B3C80',
                         'channels': 2,
                         'bits_per_sample': 16,
-                        'nal_unit_length_field': 4
+                        'nal_unit_length_field': 4,
                     },
                 }],
                 {},
@@ -1806,7 +1806,7 @@ def test_parse_ism_formats(self):
         ]
 
         for ism_file, ism_url, expected_formats, expected_subtitles in _TEST_CASES:
-            with open('./test/testdata/ism/%s.Manifest' % ism_file, encoding='utf-8') as f:
+            with open(f'./test/testdata/ism/{ism_file}.Manifest', encoding='utf-8') as f:
                 formats, subtitles = self.ie._parse_ism_formats_and_subtitles(
                     compat_etree_fromstring(f.read().encode()), ism_url=ism_url)
                 self.ie._sort_formats(formats)
@@ -1827,12 +1827,12 @@ def test_parse_f4m_formats(self):
                     'tbr': 2148,
                     'width': 1280,
                     'height': 720,
-                }]
+                }],
             ),
         ]
 
         for f4m_file, f4m_url, expected_formats in _TEST_CASES:
-            with open('./test/testdata/f4m/%s.f4m' % f4m_file, encoding='utf-8') as f:
+            with open(f'./test/testdata/f4m/{f4m_file}.f4m', encoding='utf-8') as f:
                 formats = self.ie._parse_f4m_formats(
                     compat_etree_fromstring(f.read().encode()),
                     f4m_url, None)
@@ -1873,13 +1873,13 @@ def test_parse_xspf(self):
                     }, {
                         'manifest_url': 'https://example.org/src/foo_xspf.xspf',
                         'url': 'https://example.com/track3.mp3',
-                    }]
+                    }],
-                }]
+                }],
             ),
         ]
 
         for xspf_file, xspf_url, expected_entries in _TEST_CASES:
-            with open('./test/testdata/xspf/%s.xspf' % xspf_file, encoding='utf-8') as f:
+            with open(f'./test/testdata/xspf/{xspf_file}.xspf', encoding='utf-8') as f:
                 entries = self.ie._parse_xspf(
                     compat_etree_fromstring(f.read().encode()),
                     xspf_file, xspf_url=xspf_url, xspf_base_url=xspf_url)
@@ -1902,7 +1902,7 @@ def test_response_with_expected_status_returns_content(self):
         server_thread.start()
 
         (content, urlh) = self.ie._download_webpage_handle(
-            'http://127.0.0.1:%d/teapot' % port, None,
+            f'http://127.0.0.1:{port}/teapot', None,
             expected_status=TEAPOT_RESPONSE_STATUS)
         self.assertEqual(content, TEAPOT_RESPONSE_BODY)
 
@@ -1912,7 +1912,7 @@ def test_search_nextjs_data(self):
         self.assertEqual(self.ie._search_nextjs_data('', None, fatal=False), {})
         self.assertEqual(self.ie._search_nextjs_data('', None, default=None), None)
         self.assertEqual(self.ie._search_nextjs_data('', None, default={}), {})
-        with self.assertRaises(DeprecationWarning):
+        with self.assertWarns(DeprecationWarning):
             self.assertEqual(self.ie._search_nextjs_data('', None, default='{}'), {})
 
 

test/test_YoutubeDL.py

@@ -8,6 +8,7 @@
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 
+import contextlib
 import copy
 import json
 
@@ -129,8 +130,8 @@ def test(inp, *expected, multi=False):
                 'allow_multiple_audio_streams': multi,
             })
             ydl.process_ie_result(info_dict.copy())
-            downloaded = map(lambda x: x['format_id'], ydl.downloaded_info_dicts)
+            downloaded = [x['format_id'] for x in ydl.downloaded_info_dicts]
-            self.assertEqual(list(downloaded), list(expected))
+            self.assertEqual(downloaded, list(expected))
 
         test('20/47', '47')
         test('20/71/worst', '35')
@@ -515,10 +516,8 @@ def test_format_filtering(self):
         self.assertEqual(downloaded_ids, ['D', 'C', 'B'])
 
         ydl = YDL({'format': 'best[height<40]'})
-        try:
+        with contextlib.suppress(ExtractorError):
             ydl.process_ie_result(info_dict)
-        except ExtractorError:
-            pass
         self.assertEqual(ydl.downloaded_info_dicts, [])
 
     def test_default_format_spec(self):
@@ -652,8 +651,8 @@ def test_add_extra_info(self):
         'formats': [
             {'id': 'id 1', 'height': 1080, 'width': 1920},
             {'id': 'id 2', 'height': 720},
-            {'id': 'id 3'}
+            {'id': 'id 3'},
-        ]
+        ],
     }
 
     def test_prepare_outtmpl_and_filename(self):
@@ -773,7 +772,7 @@ def expect_same_infodict(out):
         test('%(formats)j', (json.dumps(FORMATS), None))
         test('%(formats)#j', (
             json.dumps(FORMATS, indent=4),
-            json.dumps(FORMATS, indent=4).replace(':', '：').replace('"', "＂").replace('\n', ' ')
+            json.dumps(FORMATS, indent=4).replace(':', '：').replace('"', '＂').replace('\n', ' '),
         ))
         test('%(title5).3B', 'á')
         test('%(title5)U', 'áéí 𝐀')
@@ -843,8 +842,8 @@ def gen():
 
         # Empty filename
         test('%(foo|)s-%(bar|)s.%(ext)s', '-.mp4')
-        # test('%(foo|)s.%(ext)s', ('.mp4', '_.mp4'))  # fixme
+        # test('%(foo|)s.%(ext)s', ('.mp4', '_.mp4'))  # FIXME: ?
-        # test('%(foo|)s', ('', '_'))  # fixme
+        # test('%(foo|)s', ('', '_'))  # FIXME: ?
 
         # Environment variable expansion for prepare_filename
         os.environ['__yt_dlp_var'] = 'expanded'
@@ -861,7 +860,7 @@ def gen():
         test('Hello %(title1)s', 'Hello $PATH')
         test('Hello %(title2)s', 'Hello %PATH%')
         test('%(title3)s', ('foo/bar\\test', 'foo⧸bar⧹test'))
-        test('folder/%(title3)s', ('folder/foo/bar\\test', 'folder%sfoo⧸bar⧹test' % os.path.sep))
+        test('folder/%(title3)s', ('folder/foo/bar\\test', f'folder{os.path.sep}foo⧸bar⧹test'))
 
     def test_format_note(self):
         ydl = YoutubeDL()
@@ -883,22 +882,22 @@ def run(self, info):
                     f.write('EXAMPLE')
                 return [info['filepath']], info
 
-        def run_pp(params, PP):
+        def run_pp(params, pp):
             with open(filename, 'w') as f:
                 f.write('EXAMPLE')
             ydl = YoutubeDL(params)
-            ydl.add_post_processor(PP())
+            ydl.add_post_processor(pp())
             ydl.post_process(filename, {'filepath': filename})
 
         run_pp({'keepvideo': True}, SimplePP)
-        self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
+        self.assertTrue(os.path.exists(filename), f'{filename} doesn\'t exist')
-        self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
+        self.assertTrue(os.path.exists(audiofile), f'{audiofile} doesn\'t exist')
         os.unlink(filename)
         os.unlink(audiofile)
 
         run_pp({'keepvideo': False}, SimplePP)
-        self.assertFalse(os.path.exists(filename), '%s exists' % filename)
+        self.assertFalse(os.path.exists(filename), f'{filename} exists')
-        self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
+        self.assertTrue(os.path.exists(audiofile), f'{audiofile} doesn\'t exist')
         os.unlink(audiofile)
 
         class ModifierPP(PostProcessor):
@@ -908,7 +907,7 @@ def run(self, info):
                 return [], info
 
         run_pp({'keepvideo': False}, ModifierPP)
-        self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
+        self.assertTrue(os.path.exists(filename), f'{filename} doesn\'t exist')
         os.unlink(filename)
 
     def test_match_filter(self):
@@ -920,7 +919,7 @@ def test_match_filter(self):
             'duration': 30,
             'filesize': 10 * 1024,
             'playlist_id': '42',
-            'uploader': "變態妍字幕版 太妍 тест",
+            'uploader': '變態妍字幕版 太妍 тест',
             'creator': "тест ' 123 ' тест--",
             'webpage_url': 'http://example.com/watch?v=shenanigans',
         }
@@ -933,7 +932,7 @@ def test_match_filter(self):
             'description': 'foo',
             'filesize': 5 * 1024,
             'playlist_id': '43',
-            'uploader': "тест 123",
+            'uploader': 'тест 123',
             'webpage_url': 'http://example.com/watch?v=SHENANIGANS',
         }
         videos = [first, second]
@@ -1180,7 +1179,7 @@ def _real_extract(self, url):
                     })
                 return {
                     'id': video_id,
-                    'title': 'Video %s' % video_id,
+                    'title': f'Video {video_id}',
                     'formats': formats,
                 }
 
@@ -1194,8 +1193,8 @@ def _entries(self):
                         '_type': 'url_transparent',
                         'ie_key': VideoIE.ie_key(),
                         'id': video_id,
-                        'url': 'video:%s' % video_id,
+                        'url': f'video:{video_id}',
-                        'title': 'Video Transparent %s' % video_id,
+                        'title': f'Video Transparent {video_id}',
                     }
 
             def _real_extract(self, url):

test/test_aes.py

@@ -87,7 +87,7 @@ def test_decrypt_text(self):
         password = intlist_to_bytes(self.key).decode()
         encrypted = base64.b64encode(
             intlist_to_bytes(self.iv[:8])
-            + b'\x17\x15\x93\xab\x8d\x80V\xcdV\xe0\t\xcdo\xc2\xa5\xd8ksM\r\xe27N\xae'
+            + b'\x17\x15\x93\xab\x8d\x80V\xcdV\xe0\t\xcdo\xc2\xa5\xd8ksM\r\xe27N\xae',
         ).decode()
         decrypted = (aes_decrypt_text(encrypted, password, 16))
         self.assertEqual(decrypted, self.secret_msg)
@@ -95,7 +95,7 @@ def test_decrypt_text(self):
         password = intlist_to_bytes(self.key).decode()
         encrypted = base64.b64encode(
             intlist_to_bytes(self.iv[:8])
-            + b'\x0b\xe6\xa4\xd9z\x0e\xb8\xb9\xd0\xd4i_\x85\x1d\x99\x98_\xe5\x80\xe7.\xbf\xa5\x83'
+            + b'\x0b\xe6\xa4\xd9z\x0e\xb8\xb9\xd0\xd4i_\x85\x1d\x99\x98_\xe5\x80\xe7.\xbf\xa5\x83',
         ).decode()
         decrypted = (aes_decrypt_text(encrypted, password, 32))
         self.assertEqual(decrypted, self.secret_msg)
@@ -132,16 +132,16 @@ def test_pad_block(self):
         block = [0x21, 0xA0, 0x43, 0xFF]
 
         self.assertEqual(pad_block(block, 'pkcs7'),
-                         block + [0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C])
+                         [*block, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C])
 
         self.assertEqual(pad_block(block, 'iso7816'),
-                         block + [0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
+                         [*block, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
 
         self.assertEqual(pad_block(block, 'whitespace'),
-                         block + [0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20])
+                         [*block, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20])
 
         self.assertEqual(pad_block(block, 'zero'),
-                         block + [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
+                         [*block, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
 
         block = list(range(16))
         for mode in ('pkcs7', 'iso7816', 'whitespace', 'zero'):

test/test_compat.py

@@ -15,8 +15,8 @@
 from yt_dlp.compat import (
     compat_etree_fromstring,
     compat_expanduser,
-    compat_urllib_parse_unquote,
+    compat_urllib_parse_unquote,  # noqa: TID251
-    compat_urllib_parse_urlencode,
+    compat_urllib_parse_urlencode,  # noqa: TID251
 )
 from yt_dlp.compat.urllib.request import getproxies
 
@@ -24,15 +24,15 @@
 class TestCompat(unittest.TestCase):
     def test_compat_passthrough(self):
         with self.assertWarns(DeprecationWarning):
-            compat.compat_basestring
+            _ = compat.compat_basestring
 
         with self.assertWarns(DeprecationWarning):
-            compat.WINDOWS_VT_MODE
+            _ = compat.WINDOWS_VT_MODE
 
         self.assertEqual(urllib.request.getproxies, getproxies)
 
         with self.assertWarns(DeprecationWarning):
-            compat.compat_pycrypto_AES  # Must not raise error
+            _ = compat.compat_pycrypto_AES  # Must not raise error
 
     def test_compat_expanduser(self):
         old_home = os.environ.get('HOME')

test/test_config.py

@@ -71,7 +71,7 @@ def _generate_expected_groups():
             Path('/etc/yt-dlp.conf'),
             Path('/etc/yt-dlp/config'),
             Path('/etc/yt-dlp/config.txt'),
-        ]
+        ],
     }
 
 

test/test_cookies.py

@@ -106,7 +106,7 @@ def test_chrome_cookie_decryptor_linux_v11(self):
 
     def test_chrome_cookie_decryptor_windows_v10(self):
         with MonkeyPatch(cookies, {
-            '_get_windows_v10_key': lambda *args, **kwargs: b'Y\xef\xad\xad\xeerp\xf0Y\xe6\x9b\x12\xc2<z\x16]\n\xbb\xb8\xcb\xd7\x9bA\xc3\x14e\x99{\xd6\xf4&'
+            '_get_windows_v10_key': lambda *args, **kwargs: b'Y\xef\xad\xad\xeerp\xf0Y\xe6\x9b\x12\xc2<z\x16]\n\xbb\xb8\xcb\xd7\x9bA\xc3\x14e\x99{\xd6\xf4&',
         }):
             encrypted_value = b'v10T\xb8\xf3\xb8\x01\xa7TtcV\xfc\x88\xb8\xb8\xef\x05\xb5\xfd\x18\xc90\x009\xab\xb1\x893\x85)\x87\xe1\xa9-\xa3\xad='
             value = '32101439'
@@ -121,17 +121,17 @@ def test_chrome_cookie_decryptor_mac_v10(self):
             self.assertEqual(decryptor.decrypt(encrypted_value), value)
 
     def test_safari_cookie_parsing(self):
-        cookies = \
+        cookies = (
-            b'cook\x00\x00\x00\x01\x00\x00\x00i\x00\x00\x01\x00\x01\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00Y' \
+            b'cook\x00\x00\x00\x01\x00\x00\x00i\x00\x00\x01\x00\x01\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00Y'
-            b'\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x008\x00\x00\x00B\x00\x00\x00F\x00\x00\x00H' \
+            b'\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x008\x00\x00\x00B\x00\x00\x00F\x00\x00\x00H'
-            b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x03\xa5>\xc3A\x00\x00\x80\xc3\x07:\xc3A' \
+            b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x03\xa5>\xc3A\x00\x00\x80\xc3\x07:\xc3A'
-            b'localhost\x00foo\x00/\x00test%20%3Bcookie\x00\x00\x00\x054\x07\x17 \x05\x00\x00\x00Kbplist00\xd1\x01' \
+            b'localhost\x00foo\x00/\x00test%20%3Bcookie\x00\x00\x00\x054\x07\x17 \x05\x00\x00\x00Kbplist00\xd1\x01'
-            b'\x02_\x10\x18NSHTTPCookieAcceptPolicy\x10\x02\x08\x0b&\x00\x00\x00\x00\x00\x00\x01\x01\x00\x00\x00' \
+            b'\x02_\x10\x18NSHTTPCookieAcceptPolicy\x10\x02\x08\x0b&\x00\x00\x00\x00\x00\x00\x01\x01\x00\x00\x00'
-            b'\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00('
+            b'\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00(')
 
         jar = parse_safari_cookies(cookies)
         self.assertEqual(len(jar), 1)
-        cookie = list(jar)[0]
+        cookie = next(iter(jar))
         self.assertEqual(cookie.domain, 'localhost')
         self.assertEqual(cookie.port, None)
         self.assertEqual(cookie.path, '/')
@@ -164,7 +164,7 @@ def _run_tests(self, *cases):
                     attributes = {
                         key: value
                         for key, value in dict(morsel).items()
-                        if value != ""
+                        if value != ''
                     }
                     self.assertEqual(attributes, expected_attributes, message)
 
@@ -174,133 +174,133 @@ def test_parsing(self):
         self._run_tests(
             # Copied from https://github.com/python/cpython/blob/v3.10.7/Lib/test/test_http_cookies.py
             (
-                "Test basic cookie",
+                'Test basic cookie',
-                "chips=ahoy; vienna=finger",
+                'chips=ahoy; vienna=finger',
-                {"chips": "ahoy", "vienna": "finger"},
+                {'chips': 'ahoy', 'vienna': 'finger'},
             ),
             (
-                "Test quoted cookie",
+                'Test quoted cookie',
                 'keebler="E=mc2; L=\\"Loves\\"; fudge=\\012;"',
-                {"keebler": 'E=mc2; L="Loves"; fudge=\012;'},
+                {'keebler': 'E=mc2; L="Loves"; fudge=\012;'},
             ),
             (
                 "Allow '=' in an unquoted value",
-                "keebler=E=mc2",
+                'keebler=E=mc2',
-                {"keebler": "E=mc2"},
+                {'keebler': 'E=mc2'},
             ),
             (
                 "Allow cookies with ':' in their name",
-                "key:term=value:term",
+                'key:term=value:term',
-                {"key:term": "value:term"},
+                {'key:term': 'value:term'},
             ),
             (
                 "Allow '[' and ']' in cookie values",
-                "a=b; c=[; d=r; f=h",
+                'a=b; c=[; d=r; f=h',
-                {"a": "b", "c": "[", "d": "r", "f": "h"},
+                {'a': 'b', 'c': '[', 'd': 'r', 'f': 'h'},
             ),
             (
-                "Test basic cookie attributes",
+                'Test basic cookie attributes',
                 'Customer="WILE_E_COYOTE"; Version=1; Path=/acme',
-                {"Customer": ("WILE_E_COYOTE", {"version": "1", "path": "/acme"})},
+                {'Customer': ('WILE_E_COYOTE', {'version': '1', 'path': '/acme'})},
             ),
             (
-                "Test flag only cookie attributes",
+                'Test flag only cookie attributes',
                 'Customer="WILE_E_COYOTE"; HttpOnly; Secure',
-                {"Customer": ("WILE_E_COYOTE", {"httponly": True, "secure": True})},
+                {'Customer': ('WILE_E_COYOTE', {'httponly': True, 'secure': True})},
             ),
             (
-                "Test flag only attribute with values",
+                'Test flag only attribute with values',
-                "eggs=scrambled; httponly=foo; secure=bar; Path=/bacon",
+                'eggs=scrambled; httponly=foo; secure=bar; Path=/bacon',
-                {"eggs": ("scrambled", {"httponly": "foo", "secure": "bar", "path": "/bacon"})},
+                {'eggs': ('scrambled', {'httponly': 'foo', 'secure': 'bar', 'path': '/bacon'})},
             ),
             (
                 "Test special case for 'expires' attribute, 4 digit year",
                 'Customer="W"; expires=Wed, 01 Jan 2010 00:00:00 GMT',
-                {"Customer": ("W", {"expires": "Wed, 01 Jan 2010 00:00:00 GMT"})},
+                {'Customer': ('W', {'expires': 'Wed, 01 Jan 2010 00:00:00 GMT'})},
             ),
             (
                 "Test special case for 'expires' attribute, 2 digit year",
                 'Customer="W"; expires=Wed, 01 Jan 98 00:00:00 GMT',
-                {"Customer": ("W", {"expires": "Wed, 01 Jan 98 00:00:00 GMT"})},
+                {'Customer': ('W', {'expires': 'Wed, 01 Jan 98 00:00:00 GMT'})},
             ),
             (
-                "Test extra spaces in keys and values",
+                'Test extra spaces in keys and values',
-                "eggs  =  scrambled  ;  secure  ;  path  =  bar   ; foo=foo   ",
+                'eggs  =  scrambled  ;  secure  ;  path  =  bar   ; foo=foo   ',
-                {"eggs": ("scrambled", {"secure": True, "path": "bar"}), "foo": "foo"},
+                {'eggs': ('scrambled', {'secure': True, 'path': 'bar'}), 'foo': 'foo'},
             ),
             (
-                "Test quoted attributes",
+                'Test quoted attributes',
                 'Customer="WILE_E_COYOTE"; Version="1"; Path="/acme"',
-                {"Customer": ("WILE_E_COYOTE", {"version": "1", "path": "/acme"})}
+                {'Customer': ('WILE_E_COYOTE', {'version': '1', 'path': '/acme'})},
             ),
             # Our own tests that CPython passes
             (
                 "Allow ';' in quoted value",
                 'chips="a;hoy"; vienna=finger',
-                {"chips": "a;hoy", "vienna": "finger"},
+                {'chips': 'a;hoy', 'vienna': 'finger'},
             ),
             (
-                "Keep only the last set value",
+                'Keep only the last set value',
-                "a=c; a=b",
+                'a=c; a=b',
-                {"a": "b"},
+                {'a': 'b'},
             ),
         )
 
     def test_lenient_parsing(self):
         self._run_tests(
             (
-                "Ignore and try to skip invalid cookies",
+                'Ignore and try to skip invalid cookies',
                 'chips={"ahoy;": 1}; vienna="finger;"',
-                {"vienna": "finger;"},
+                {'vienna': 'finger;'},
             ),
             (
-                "Ignore cookies without a name",
+                'Ignore cookies without a name',
-                "a=b; unnamed; c=d",
+                'a=b; unnamed; c=d',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
                 "Ignore '\"' cookie without name",
                 'a=b; "; c=d',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
-                "Skip all space separated values",
+                'Skip all space separated values',
-                "x a=b c=d x; e=f",
+                'x a=b c=d x; e=f',
-                {"a": "b", "c": "d", "e": "f"},
+                {'a': 'b', 'c': 'd', 'e': 'f'},
             ),
             (
-                "Skip all space separated values",
+                'Skip all space separated values',
                 'x a=b; data={"complex": "json", "with": "key=value"}; x c=d x',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
-                "Expect quote mending",
+                'Expect quote mending',
                 'a=b; invalid="; c=d',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
-                "Reset morsel after invalid to not capture attributes",
+                'Reset morsel after invalid to not capture attributes',
-                "a=b; invalid; Version=1; c=d",
+                'a=b; invalid; Version=1; c=d',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
-                "Reset morsel after invalid to not capture attributes",
+                'Reset morsel after invalid to not capture attributes',
-                "a=b; $invalid; $Version=1; c=d",
+                'a=b; $invalid; $Version=1; c=d',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
-                "Continue after non-flag attribute without value",
+                'Continue after non-flag attribute without value',
-                "a=b; path; Version=1; c=d",
+                'a=b; path; Version=1; c=d',
-                {"a": "b", "c": "d"},
+                {'a': 'b', 'c': 'd'},
             ),
             (
-                "Allow cookie attributes with `$` prefix",
+                'Allow cookie attributes with `$` prefix',
                 'Customer="WILE_E_COYOTE"; $Version=1; $Secure; $Path=/acme',
-                {"Customer": ("WILE_E_COYOTE", {"version": "1", "secure": True, "path": "/acme"})},
+                {'Customer': ('WILE_E_COYOTE', {'version': '1', 'secure': True, 'path': '/acme'})},
             ),
             (
-                "Invalid Morsel keys should not result in an error",
+                'Invalid Morsel keys should not result in an error',
-                "Key=Value; [Invalid]=Value; Another=Value",
+                'Key=Value; [Invalid]=Value; Another=Value',
-                {"Key": "Value", "Another": "Value"},
+                {'Key': 'Value', 'Another': 'Value'},
             ),
         )

test/test_download.py

@@ -94,7 +94,7 @@ def test_template(self):
             'playlist', [] if is_playlist else [test_case])
 
         def print_skipping(reason):
-            print('Skipping %s: %s' % (test_case['name'], reason))
+            print('Skipping {}: {}'.format(test_case['name'], reason))
             self.skipTest(reason)
 
         if not ie.working():
@@ -117,7 +117,7 @@ def print_skipping(reason):
 
         for other_ie in other_ies:
             if not other_ie.working():
-                print_skipping('test depends on %sIE, marked as not WORKING' % other_ie.ie_key())
+                print_skipping(f'test depends on {other_ie.ie_key()}IE, marked as not WORKING')
 
         params = get_params(test_case.get('params', {}))
         params['outtmpl'] = tname + '_' + params['outtmpl']
@@ -148,10 +148,7 @@ def match_exception(err):
                 return False
             if err.__class__.__name__ == expected_exception:
                 return True
-            for exc in err.exc_info:
+            return any(exc.__class__.__name__ == expected_exception for exc in err.exc_info)
-                if exc.__class__.__name__ == expected_exception:
-                    return True
-            return False
 
         def try_rm_tcs_files(tcs=None):
             if tcs is None:
@@ -181,7 +178,7 @@ def try_rm_tcs_files(tcs=None):
                         raise
 
                     if try_num == RETRIES:
-                        report_warning('%s failed due to network errors, skipping...' % tname)
+                        report_warning(f'{tname} failed due to network errors, skipping...')
                         return
 
                     print(f'Retrying: {try_num} failed tries\n\n##########\n\n')
@@ -244,9 +241,8 @@ def try_rm_tcs_files(tcs=None):
                         got_fsize = os.path.getsize(tc_filename)
                         assertGreaterEqual(
                             self, got_fsize, expected_minsize,
-                            'Expected %s to be at least %s, but it\'s only %s ' %
+                            f'Expected {tc_filename} to be at least {format_bytes(expected_minsize)}, '
-                            (tc_filename, format_bytes(expected_minsize),
+                            f'but it\'s only {format_bytes(got_fsize)} ')
-                                format_bytes(got_fsize)))
                     if 'md5' in tc:
                         md5_for_file = _file_md5(tc_filename)
                         self.assertEqual(tc['md5'], md5_for_file)
@@ -255,7 +251,7 @@ def try_rm_tcs_files(tcs=None):
                 info_json_fn = os.path.splitext(tc_filename)[0] + '.info.json'
                 self.assertTrue(
                     os.path.exists(info_json_fn),
-                    'Missing info file %s' % info_json_fn)
+                    f'Missing info file {info_json_fn}')
                 with open(info_json_fn, encoding='utf-8') as infof:
                     info_dict = json.load(infof)
                 expect_info_dict(self, info_dict, tc.get('info_dict', {}))

test/test_downloader_http.py

@@ -38,9 +38,9 @@ def send_content_range(self, total=None):
                 end = int(mobj.group(2))
         valid_range = start is not None and end is not None
         if valid_range:
-            content_range = 'bytes %d-%d' % (start, end)
+            content_range = f'bytes {start}-{end}'
             if total:
-                content_range += '/%d' % total
+                content_range += f'/{total}'
             self.send_header('Content-Range', content_range)
         return (end - start + 1) if valid_range else total
 
@@ -84,7 +84,7 @@ def download(self, params, ep):
         filename = 'testfile.mp4'
         try_rm(encodeFilename(filename))
         self.assertTrue(downloader.real_download(filename, {
-            'url': 'http://127.0.0.1:%d/%s' % (self.port, ep),
+            'url': f'http://127.0.0.1:{self.port}/{ep}',
         }), ep)
         self.assertEqual(os.path.getsize(encodeFilename(filename)), TEST_SIZE, ep)
         try_rm(encodeFilename(filename))

test/test_http_proxy.py

@@ -0,0 +1,380 @@
+import abc
+import base64
+import contextlib
+import functools
+import json
+import os
+import random
+import ssl
+import threading
+from http.server import BaseHTTPRequestHandler
+from socketserver import ThreadingTCPServer
+
+import pytest
+
+from test.helper import http_server_port, verify_address_availability
+from test.test_networking import TEST_DIR
+from test.test_socks import IPv6ThreadingTCPServer
+from yt_dlp.dependencies import urllib3
+from yt_dlp.networking import Request
+from yt_dlp.networking.exceptions import HTTPError, ProxyError, SSLError
+
+
+class HTTPProxyAuthMixin:
+
+    def proxy_auth_error(self):
+        self.send_response(407)
+        self.send_header('Proxy-Authenticate', 'Basic realm="test http proxy"')
+        self.end_headers()
+        return False
+
+    def do_proxy_auth(self, username, password):
+        if username is None and password is None:
+            return True
+
+        proxy_auth_header = self.headers.get('Proxy-Authorization', None)
+        if proxy_auth_header is None:
+            return self.proxy_auth_error()
+
+        if not proxy_auth_header.startswith('Basic '):
+            return self.proxy_auth_error()
+
+        auth = proxy_auth_header[6:]
+
+        try:
+            auth_username, auth_password = base64.b64decode(auth).decode().split(':', 1)
+        except Exception:
+            return self.proxy_auth_error()
+
+        if auth_username != (username or '') or auth_password != (password or ''):
+            return self.proxy_auth_error()
+        return True
+
+
+class HTTPProxyHandler(BaseHTTPRequestHandler, HTTPProxyAuthMixin):
+    def __init__(self, *args, proxy_info=None, username=None, password=None, request_handler=None, **kwargs):
+        self.username = username
+        self.password = password
+        self.proxy_info = proxy_info
+        super().__init__(*args, **kwargs)
+
+    def do_GET(self):
+        if not self.do_proxy_auth(self.username, self.password):
+            self.server.close_request(self.request)
+            return
+        if self.path.endswith('/proxy_info'):
+            payload = json.dumps(self.proxy_info or {
+                'client_address': self.client_address,
+                'connect': False,
+                'connect_host': None,
+                'connect_port': None,
+                'headers': dict(self.headers),
+                'path': self.path,
+                'proxy': ':'.join(str(y) for y in self.connection.getsockname()),
+            })
+            self.send_response(200)
+            self.send_header('Content-Type', 'application/json; charset=utf-8')
+            self.send_header('Content-Length', str(len(payload)))
+            self.end_headers()
+            self.wfile.write(payload.encode())
+        else:
+            self.send_response(404)
+            self.end_headers()
+
+        self.server.close_request(self.request)
+
+
+if urllib3:
+    import urllib3.util.ssltransport
+
+    class SSLTransport(urllib3.util.ssltransport.SSLTransport):
+        """
+        Modified version of urllib3 SSLTransport to support server side SSL
+
+        This allows us to chain multiple TLS connections.
+        """
+
+        def __init__(self, socket, ssl_context, server_hostname=None, suppress_ragged_eofs=True, server_side=False):
+            self.incoming = ssl.MemoryBIO()
+            self.outgoing = ssl.MemoryBIO()
+
+            self.suppress_ragged_eofs = suppress_ragged_eofs
+            self.socket = socket
+
+            self.sslobj = ssl_context.wrap_bio(
+                self.incoming,
+                self.outgoing,
+                server_hostname=server_hostname,
+                server_side=server_side,
+            )
+            self._ssl_io_loop(self.sslobj.do_handshake)
+
+        @property
+        def _io_refs(self):
+            return self.socket._io_refs
+
+        @_io_refs.setter
+        def _io_refs(self, value):
+            self.socket._io_refs = value
+
+        def shutdown(self, *args, **kwargs):
+            self.socket.shutdown(*args, **kwargs)
+else:
+    SSLTransport = None
+
+
+class HTTPSProxyHandler(HTTPProxyHandler):
+    def __init__(self, request, *args, **kwargs):
+        certfn = os.path.join(TEST_DIR, 'testcert.pem')
+        sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
+        sslctx.load_cert_chain(certfn, None)
+        if isinstance(request, ssl.SSLSocket):
+            request = SSLTransport(request, ssl_context=sslctx, server_side=True)
+        else:
+            request = sslctx.wrap_socket(request, server_side=True)
+        super().__init__(request, *args, **kwargs)
+
+
+class HTTPConnectProxyHandler(BaseHTTPRequestHandler, HTTPProxyAuthMixin):
+    protocol_version = 'HTTP/1.1'
+    default_request_version = 'HTTP/1.1'
+
+    def __init__(self, *args, username=None, password=None, request_handler=None, **kwargs):
+        self.username = username
+        self.password = password
+        self.request_handler = request_handler
+        super().__init__(*args, **kwargs)
+
+    def do_CONNECT(self):
+        if not self.do_proxy_auth(self.username, self.password):
+            self.server.close_request(self.request)
+            return
+        self.send_response(200)
+        self.end_headers()
+        proxy_info = {
+            'client_address': self.client_address,
+            'connect': True,
+            'connect_host': self.path.split(':')[0],
+            'connect_port': int(self.path.split(':')[1]),
+            'headers': dict(self.headers),
+            'path': self.path,
+            'proxy': ':'.join(str(y) for y in self.connection.getsockname()),
+        }
+        self.request_handler(self.request, self.client_address, self.server, proxy_info=proxy_info)
+        self.server.close_request(self.request)
+
+
+class HTTPSConnectProxyHandler(HTTPConnectProxyHandler):
+    def __init__(self, request, *args, **kwargs):
+        certfn = os.path.join(TEST_DIR, 'testcert.pem')
+        sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
+        sslctx.load_cert_chain(certfn, None)
+        request = sslctx.wrap_socket(request, server_side=True)
+        self._original_request = request
+        super().__init__(request, *args, **kwargs)
+
+    def do_CONNECT(self):
+        super().do_CONNECT()
+        self.server.close_request(self._original_request)
+
+
+@contextlib.contextmanager
+def proxy_server(proxy_server_class, request_handler, bind_ip=None, **proxy_server_kwargs):
+    server = server_thread = None
+    try:
+        bind_address = bind_ip or '127.0.0.1'
+        server_type = ThreadingTCPServer if '.' in bind_address else IPv6ThreadingTCPServer
+        server = server_type(
+            (bind_address, 0), functools.partial(proxy_server_class, request_handler=request_handler, **proxy_server_kwargs))
+        server_port = http_server_port(server)
+        server_thread = threading.Thread(target=server.serve_forever)
+        server_thread.daemon = True
+        server_thread.start()
+        if '.' not in bind_address:
+            yield f'[{bind_address}]:{server_port}'
+        else:
+            yield f'{bind_address}:{server_port}'
+    finally:
+        server.shutdown()
+        server.server_close()
+        server_thread.join(2.0)
+
+
+class HTTPProxyTestContext(abc.ABC):
+    REQUEST_HANDLER_CLASS = None
+    REQUEST_PROTO = None
+
+    def http_server(self, server_class, *args, **kwargs):
+        return proxy_server(server_class, self.REQUEST_HANDLER_CLASS, *args, **kwargs)
+
+    @abc.abstractmethod
+    def proxy_info_request(self, handler, target_domain=None, target_port=None, **req_kwargs) -> dict:
+        """return a dict of proxy_info"""
+
+
+class HTTPProxyHTTPTestContext(HTTPProxyTestContext):
+    # Standard HTTP Proxy for http requests
+    REQUEST_HANDLER_CLASS = HTTPProxyHandler
+    REQUEST_PROTO = 'http'
+
+    def proxy_info_request(self, handler, target_domain=None, target_port=None, **req_kwargs):
+        request = Request(f'http://{target_domain or "127.0.0.1"}:{target_port or "40000"}/proxy_info', **req_kwargs)
+        handler.validate(request)
+        return json.loads(handler.send(request).read().decode())
+
+
+class HTTPProxyHTTPSTestContext(HTTPProxyTestContext):
+    # HTTP Connect proxy, for https requests
+    REQUEST_HANDLER_CLASS = HTTPSProxyHandler
+    REQUEST_PROTO = 'https'
+
+    def proxy_info_request(self, handler, target_domain=None, target_port=None, **req_kwargs):
+        request = Request(f'https://{target_domain or "127.0.0.1"}:{target_port or "40000"}/proxy_info', **req_kwargs)
+        handler.validate(request)
+        return json.loads(handler.send(request).read().decode())
+
+
+CTX_MAP = {
+    'http': HTTPProxyHTTPTestContext,
+    'https': HTTPProxyHTTPSTestContext,
+}
+
+
+@pytest.fixture(scope='module')
+def ctx(request):
+    return CTX_MAP[request.param]()
+
+
+@pytest.mark.parametrize(
+    'handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+@pytest.mark.parametrize('ctx', ['http'], indirect=True)  # pure http proxy can only support http
+class TestHTTPProxy:
+    def test_http_no_auth(self, handler, ctx):
+        with ctx.http_server(HTTPProxyHandler) as server_address:
+            with handler(proxies={ctx.REQUEST_PROTO: f'http://{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['connect'] is False
+                assert 'Proxy-Authorization' not in proxy_info['headers']
+
+    def test_http_auth(self, handler, ctx):
+        with ctx.http_server(HTTPProxyHandler, username='test', password='test') as server_address:
+            with handler(proxies={ctx.REQUEST_PROTO: f'http://test:test@{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert 'Proxy-Authorization' in proxy_info['headers']
+
+    def test_http_bad_auth(self, handler, ctx):
+        with ctx.http_server(HTTPProxyHandler, username='test', password='test') as server_address:
+            with handler(proxies={ctx.REQUEST_PROTO: f'http://test:bad@{server_address}'}) as rh:
+                with pytest.raises(HTTPError) as exc_info:
+                    ctx.proxy_info_request(rh)
+                assert exc_info.value.response.status == 407
+                exc_info.value.response.close()
+
+    def test_http_source_address(self, handler, ctx):
+        with ctx.http_server(HTTPProxyHandler) as server_address:
+            source_address = f'127.0.0.{random.randint(5, 255)}'
+            verify_address_availability(source_address)
+            with handler(proxies={ctx.REQUEST_PROTO: f'http://{server_address}'},
+                         source_address=source_address) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['client_address'][0] == source_address
+
+    @pytest.mark.skip_handler('Urllib', 'urllib does not support https proxies')
+    def test_https(self, handler, ctx):
+        with ctx.http_server(HTTPSProxyHandler) as server_address:
+            with handler(verify=False, proxies={ctx.REQUEST_PROTO: f'https://{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['connect'] is False
+                assert 'Proxy-Authorization' not in proxy_info['headers']
+
+    @pytest.mark.skip_handler('Urllib', 'urllib does not support https proxies')
+    def test_https_verify_failed(self, handler, ctx):
+        with ctx.http_server(HTTPSProxyHandler) as server_address:
+            with handler(verify=True, proxies={ctx.REQUEST_PROTO: f'https://{server_address}'}) as rh:
+                # Accept SSLError as may not be feasible to tell if it is proxy or request error.
+                # note: if request proto also does ssl verification, this may also be the error of the request.
+                # Until we can support passing custom cacerts to handlers, we cannot properly test this for all cases.
+                with pytest.raises((ProxyError, SSLError)):
+                    ctx.proxy_info_request(rh)
+
+    def test_http_with_idn(self, handler, ctx):
+        with ctx.http_server(HTTPProxyHandler) as server_address:
+            with handler(proxies={ctx.REQUEST_PROTO: f'http://{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh, target_domain='中文.tw')
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['path'].startswith('http://xn--fiq228c.tw')
+                assert proxy_info['headers']['Host'].split(':', 1)[0] == 'xn--fiq228c.tw'
+
+
+@pytest.mark.parametrize(
+    'handler,ctx', [
+        ('Requests', 'https'),
+        ('CurlCFFI', 'https'),
+    ], indirect=True)
+class TestHTTPConnectProxy:
+    def test_http_connect_no_auth(self, handler, ctx):
+        with ctx.http_server(HTTPConnectProxyHandler) as server_address:
+            with handler(verify=False, proxies={ctx.REQUEST_PROTO: f'http://{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['connect'] is True
+                assert 'Proxy-Authorization' not in proxy_info['headers']
+
+    def test_http_connect_auth(self, handler, ctx):
+        with ctx.http_server(HTTPConnectProxyHandler, username='test', password='test') as server_address:
+            with handler(verify=False, proxies={ctx.REQUEST_PROTO: f'http://test:test@{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert 'Proxy-Authorization' in proxy_info['headers']
+
+    @pytest.mark.skip_handler(
+        'Requests',
+        'bug in urllib3 causes unclosed socket: https://github.com/urllib3/urllib3/issues/3374',
+    )
+    def test_http_connect_bad_auth(self, handler, ctx):
+        with ctx.http_server(HTTPConnectProxyHandler, username='test', password='test') as server_address:
+            with handler(verify=False, proxies={ctx.REQUEST_PROTO: f'http://test:bad@{server_address}'}) as rh:
+                with pytest.raises(ProxyError):
+                    ctx.proxy_info_request(rh)
+
+    def test_http_connect_source_address(self, handler, ctx):
+        with ctx.http_server(HTTPConnectProxyHandler) as server_address:
+            source_address = f'127.0.0.{random.randint(5, 255)}'
+            verify_address_availability(source_address)
+            with handler(proxies={ctx.REQUEST_PROTO: f'http://{server_address}'},
+                         source_address=source_address,
+                         verify=False) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['client_address'][0] == source_address
+
+    @pytest.mark.skipif(urllib3 is None, reason='requires urllib3 to test')
+    def test_https_connect_proxy(self, handler, ctx):
+        with ctx.http_server(HTTPSConnectProxyHandler) as server_address:
+            with handler(verify=False, proxies={ctx.REQUEST_PROTO: f'https://{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert proxy_info['connect'] is True
+                assert 'Proxy-Authorization' not in proxy_info['headers']
+
+    @pytest.mark.skipif(urllib3 is None, reason='requires urllib3 to test')
+    def test_https_connect_verify_failed(self, handler, ctx):
+        with ctx.http_server(HTTPSConnectProxyHandler) as server_address:
+            with handler(verify=True, proxies={ctx.REQUEST_PROTO: f'https://{server_address}'}) as rh:
+                # Accept SSLError as may not be feasible to tell if it is proxy or request error.
+                # note: if request proto also does ssl verification, this may also be the error of the request.
+                # Until we can support passing custom cacerts to handlers, we cannot properly test this for all cases.
+                with pytest.raises((ProxyError, SSLError)):
+                    ctx.proxy_info_request(rh)
+
+    @pytest.mark.skipif(urllib3 is None, reason='requires urllib3 to test')
+    def test_https_connect_proxy_auth(self, handler, ctx):
+        with ctx.http_server(HTTPSConnectProxyHandler, username='test', password='test') as server_address:
+            with handler(verify=False, proxies={ctx.REQUEST_PROTO: f'https://test:test@{server_address}'}) as rh:
+                proxy_info = ctx.proxy_info_request(rh)
+                assert proxy_info['proxy'] == server_address
+                assert 'Proxy-Authorization' in proxy_info['headers']

test/test_iqiyi_sdk_interpreter.py

@@ -29,11 +29,11 @@ def error(self, msg):
 @is_download_test
 class TestIqiyiSDKInterpreter(unittest.TestCase):
     def test_iqiyi_sdk_interpreter(self):
-        '''
+        """
         Test the functionality of IqiyiSDKInterpreter by trying to log in
 
         If `sign` is incorrect, /validate call throws an HTTP 556 error
-        '''
+        """
         logger = WarningLogger()
         ie = IqiyiIE(FakeYDL({'logger': logger}))
         ie._perform_login('foo', 'bar')

test/test_netrc.py

@@ -21,7 +21,7 @@ def test_netrc_present(self):
                 continue
             self.assertTrue(
                 ie._NETRC_MACHINE,
-                'Extractor %s supports login, but is missing a _NETRC_MACHINE property' % ie.IE_NAME)
+                f'Extractor {ie.IE_NAME} supports login, but is missing a _NETRC_MACHINE property')
 
 
 if __name__ == '__main__':

test/test_networking.py

@@ -6,6 +6,8 @@
 
 import pytest
 
+from yt_dlp.networking.common import Features, DEFAULT_TIMEOUT
+
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 import gzip
@@ -27,8 +29,12 @@
 from email.message import Message
 from http.cookiejar import CookieJar
 
-from test.conftest import validate_and_send
+from test.helper import (
-from test.helper import FakeYDL, http_server_port, verify_address_availability
+    FakeYDL,
+    http_server_port,
+    validate_and_send,
+    verify_address_availability,
+)
 from yt_dlp.cookies import YoutubeDLCookieJar
 from yt_dlp.dependencies import brotli, curl_cffi, requests, urllib3
 from yt_dlp.networking import (
@@ -62,21 +68,6 @@
 TEST_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
-def _build_proxy_handler(name):
-    class HTTPTestRequestHandler(http.server.BaseHTTPRequestHandler):
-        proxy_name = name
-
-        def log_message(self, format, *args):
-            pass
-
-        def do_GET(self):
-            self.send_response(200)
-            self.send_header('Content-Type', 'text/plain; charset=utf-8')
-            self.end_headers()
-            self.wfile.write(f'{self.proxy_name}: {self.path}'.encode())
-    return HTTPTestRequestHandler
-
-
 class HTTPTestRequestHandler(http.server.BaseHTTPRequestHandler):
     protocol_version = 'HTTP/1.1'
     default_request_version = 'HTTP/1.1'
@@ -317,8 +308,9 @@ def setup_class(cls):
         cls.https_server_thread.start()
 
 
+@pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
 class TestHTTPRequestHandler(TestRequestHandlerBase):
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+
     def test_verify_cert(self, handler):
         with handler() as rh:
             with pytest.raises(CertificateVerifyError):
@@ -329,7 +321,6 @@ def test_verify_cert(self, handler):
             assert r.status == 200
             r.close()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_ssl_error(self, handler):
         # HTTPS server with too old TLS version
         # XXX: is there a better way to test this than to create a new server?
@@ -347,7 +338,6 @@ def test_ssl_error(self, handler):
                 validate_and_send(rh, Request(f'https://127.0.0.1:{https_port}/headers'))
             assert not issubclass(exc_info.type, CertificateVerifyError)
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_percent_encode(self, handler):
         with handler() as rh:
             # Unicode characters should be encoded with uppercase percent-encoding
@@ -359,7 +349,6 @@ def test_percent_encode(self, handler):
             assert res.status == 200
             res.close()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     @pytest.mark.parametrize('path', [
         '/a/b/./../../headers',
         '/redirect_dotsegments',
@@ -375,25 +364,22 @@ def test_remove_dot_segments(self, handler, path):
             assert res.url == f'http://127.0.0.1:{self.http_port}/headers'
             res.close()
 
-    # Not supported by CurlCFFI (non-standard)
+    @pytest.mark.skip_handler('CurlCFFI', 'not supported by curl-cffi (non-standard)')
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
     def test_unicode_path_redirection(self, handler):
         with handler() as rh:
             r = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/302-non-ascii-redirect'))
             assert r.url == f'http://127.0.0.1:{self.http_port}/%E4%B8%AD%E6%96%87.html'
             r.close()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_raise_http_error(self, handler):
         with handler() as rh:
             for bad_status in (400, 500, 599, 302):
                 with pytest.raises(HTTPError):
-                    validate_and_send(rh, Request('http://127.0.0.1:%d/gen_%d' % (self.http_port, bad_status)))
+                    validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/gen_{bad_status}'))
 
             # Should not raise an error
-            validate_and_send(rh, Request('http://127.0.0.1:%d/gen_200' % self.http_port)).close()
+            validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/gen_200')).close()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_response_url(self, handler):
         with handler() as rh:
             # Response url should be that of the last url in redirect chain
@@ -405,7 +391,6 @@ def test_response_url(self, handler):
             res2.close()
 
     # Covers some basic cases we expect some level of consistency between request handlers for
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     @pytest.mark.parametrize('redirect_status,method,expected', [
         # A 303 must either use GET or HEAD for subsequent request
         (303, 'POST', ('', 'GET', False)),
@@ -447,7 +432,6 @@ def test_redirect(self, handler, redirect_status, method, expected):
             assert expected[1] == res.headers.get('method')
             assert expected[2] == ('content-length' in headers.decode().lower())
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_request_cookie_header(self, handler):
         # We should accept a Cookie header being passed as in normal headers and handle it appropriately.
         with handler() as rh:
@@ -480,19 +464,16 @@ def test_request_cookie_header(self, handler):
             assert b'cookie: test=ytdlp' not in data.lower()
             assert b'cookie: test=test3' in data.lower()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_redirect_loop(self, handler):
         with handler() as rh:
             with pytest.raises(HTTPError, match='redirect loop'):
                 validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/redirect_loop'))
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_incompleteread(self, handler):
         with handler(timeout=2) as rh:
             with pytest.raises(IncompleteRead, match='13 bytes read, 234221 more expected'):
-                validate_and_send(rh, Request('http://127.0.0.1:%d/incompleteread' % self.http_port)).read()
+                validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/incompleteread')).read()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_cookies(self, handler):
         cookiejar = YoutubeDLCookieJar()
         cookiejar.set_cookie(http.cookiejar.Cookie(
@@ -509,7 +490,6 @@ def test_cookies(self, handler):
                 rh, Request(f'http://127.0.0.1:{self.http_port}/headers', extensions={'cookiejar': cookiejar})).read()
             assert b'cookie: test=ytdlp' in data.lower()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_headers(self, handler):
 
         with handler(headers=HTTPHeaderDict({'test1': 'test', 'test2': 'test2'})) as rh:
@@ -525,7 +505,6 @@ def test_headers(self, handler):
             assert b'test2: test2' not in data
             assert b'test3: test3' in data
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_read_timeout(self, handler):
         with handler() as rh:
             # Default timeout is 20 seconds, so this should go through
@@ -541,26 +520,21 @@ def test_read_timeout(self, handler):
             validate_and_send(
                 rh, Request(f'http://127.0.0.1:{self.http_port}/timeout_1', extensions={'timeout': 4}))
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_connect_timeout(self, handler):
         # nothing should be listening on this port
         connect_timeout_url = 'http://10.255.255.255'
-        with handler(timeout=0.01) as rh:
+        with handler(timeout=0.01) as rh, pytest.raises(TransportError):
             now = time.time()
-            with pytest.raises(TransportError):
+            validate_and_send(rh, Request(connect_timeout_url))
-                validate_and_send(
+        assert time.time() - now < DEFAULT_TIMEOUT
-                    rh, Request(connect_timeout_url))
-            assert 0.01 <= time.time() - now < 20
 
-        with handler() as rh:
+        # Per request timeout, should override handler timeout
-            with pytest.raises(TransportError):
+        request = Request(connect_timeout_url, extensions={'timeout': 0.01})
-                # Per request timeout, should override handler timeout
+        with handler() as rh, pytest.raises(TransportError):
-                now = time.time()
+            now = time.time()
-                validate_and_send(
+            validate_and_send(rh, request)
-                    rh, Request(connect_timeout_url, extensions={'timeout': 0.01}))
+        assert time.time() - now < DEFAULT_TIMEOUT
-                assert 0.01 <= time.time() - now < 20
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_source_address(self, handler):
         source_address = f'127.0.0.{random.randint(5, 255)}'
         # on some systems these loopback addresses we need for testing may not be available
@@ -572,13 +546,13 @@ def test_source_address(self, handler):
             assert source_address == data
 
     # Not supported by CurlCFFI
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+    @pytest.mark.skip_handler('CurlCFFI', 'not supported by curl-cffi')
     def test_gzip_trailing_garbage(self, handler):
         with handler() as rh:
             data = validate_and_send(rh, Request(f'http://localhost:{self.http_port}/trailing_garbage')).read().decode()
             assert data == '<html><video src="/vid.mp4" /></html>'
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
+    @pytest.mark.skip_handler('CurlCFFI', 'not applicable to curl-cffi')
     @pytest.mark.skipif(not brotli, reason='brotli support is not installed')
     def test_brotli(self, handler):
         with handler() as rh:
@@ -589,7 +563,6 @@ def test_brotli(self, handler):
             assert res.headers.get('Content-Encoding') == 'br'
             assert res.read() == b'<html><video src="/vid.mp4" /></html>'
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_deflate(self, handler):
         with handler() as rh:
             res = validate_and_send(
@@ -599,7 +572,6 @@ def test_deflate(self, handler):
             assert res.headers.get('Content-Encoding') == 'deflate'
             assert res.read() == b'<html><video src="/vid.mp4" /></html>'
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_gzip(self, handler):
         with handler() as rh:
             res = validate_and_send(
@@ -609,7 +581,6 @@ def test_gzip(self, handler):
             assert res.headers.get('Content-Encoding') == 'gzip'
             assert res.read() == b'<html><video src="/vid.mp4" /></html>'
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_multiple_encodings(self, handler):
         with handler() as rh:
             for pair in ('gzip,deflate', 'deflate, gzip', 'gzip, gzip', 'deflate, deflate'):
@@ -620,8 +591,7 @@ def test_multiple_encodings(self, handler):
                 assert res.headers.get('Content-Encoding') == pair
                 assert res.read() == b'<html><video src="/vid.mp4" /></html>'
 
-    # Not supported by curl_cffi
+    @pytest.mark.skip_handler('CurlCFFI', 'not supported by curl-cffi')
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests'], indirect=True)
     def test_unsupported_encoding(self, handler):
         with handler() as rh:
             res = validate_and_send(
@@ -631,7 +601,6 @@ def test_unsupported_encoding(self, handler):
             assert res.headers.get('Content-Encoding') == 'unsupported'
             assert res.read() == b'raw'
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_read(self, handler):
         with handler() as rh:
             res = validate_and_send(
@@ -642,83 +611,48 @@ def test_read(self, handler):
             assert res.read().decode().endswith('\n\n')
             assert res.read() == b''
 
+    def test_request_disable_proxy(self, handler):
+        for proxy_proto in handler._SUPPORTED_PROXY_SCHEMES or ['http']:
+            # Given the handler is configured with a proxy
+            with handler(proxies={'http': f'{proxy_proto}://10.255.255.255'}, timeout=5) as rh:
+                # When a proxy is explicitly set to None for the request
+                res = validate_and_send(
+                    rh, Request(f'http://127.0.0.1:{self.http_port}/headers', proxies={'http': None}))
+                # Then no proxy should be used
+                res.close()
+                assert res.status == 200
 
-class TestHTTPProxy(TestRequestHandlerBase):
+    @pytest.mark.skip_handlers_if(
-    # Note: this only tests http urls over non-CONNECT proxy
+        lambda _, handler: Features.NO_PROXY not in handler._SUPPORTED_FEATURES, 'handler does not support NO_PROXY')
-    @classmethod
-    def setup_class(cls):
-        super().setup_class()
-        # HTTP Proxy server
-        cls.proxy = http.server.ThreadingHTTPServer(
-            ('127.0.0.1', 0), _build_proxy_handler('normal'))
-        cls.proxy_port = http_server_port(cls.proxy)
-        cls.proxy_thread = threading.Thread(target=cls.proxy.serve_forever)
-        cls.proxy_thread.daemon = True
-        cls.proxy_thread.start()
-
-        # Geo proxy server
-        cls.geo_proxy = http.server.ThreadingHTTPServer(
-            ('127.0.0.1', 0), _build_proxy_handler('geo'))
-        cls.geo_port = http_server_port(cls.geo_proxy)
-        cls.geo_proxy_thread = threading.Thread(target=cls.geo_proxy.serve_forever)
-        cls.geo_proxy_thread.daemon = True
-        cls.geo_proxy_thread.start()
-
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
-    def test_http_proxy(self, handler):
-        http_proxy = f'http://127.0.0.1:{self.proxy_port}'
-        geo_proxy = f'http://127.0.0.1:{self.geo_port}'
-
-        # Test global http proxy
-        # Test per request http proxy
-        # Test per request http proxy disables proxy
-        url = 'http://foo.com/bar'
-
-        # Global HTTP proxy
-        with handler(proxies={'http': http_proxy}) as rh:
-            res = validate_and_send(rh, Request(url)).read().decode()
-            assert res == f'normal: {url}'
-
-            # Per request proxy overrides global
-            res = validate_and_send(rh, Request(url, proxies={'http': geo_proxy})).read().decode()
-            assert res == f'geo: {url}'
-
-            # and setting to None disables all proxies for that request
-            real_url = f'http://127.0.0.1:{self.http_port}/headers'
-            res = validate_and_send(
-                rh, Request(real_url, proxies={'http': None})).read().decode()
-            assert res != f'normal: {real_url}'
-            assert 'Accept' in res
-
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_noproxy(self, handler):
-        with handler(proxies={'proxy': f'http://127.0.0.1:{self.proxy_port}'}) as rh:
+        for proxy_proto in handler._SUPPORTED_PROXY_SCHEMES or ['http']:
-            # NO_PROXY
+            # Given the handler is configured with a proxy
-            for no_proxy in (f'127.0.0.1:{self.http_port}', '127.0.0.1', 'localhost'):
+            with handler(proxies={'http': f'{proxy_proto}://10.255.255.255'}, timeout=5) as rh:
-                nop_response = validate_and_send(
+                for no_proxy in (f'127.0.0.1:{self.http_port}', '127.0.0.1', 'localhost'):
-                    rh, Request(f'http://127.0.0.1:{self.http_port}/headers', proxies={'no': no_proxy})).read().decode(
+                    # When request no proxy includes the request url host
-                    'utf-8')
+                    nop_response = validate_and_send(
-                assert 'Accept' in nop_response
+                        rh, Request(f'http://127.0.0.1:{self.http_port}/headers', proxies={'no': no_proxy}))
+                    # Then the proxy should not be used
+                    assert nop_response.status == 200
+                    nop_response.close()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+    @pytest.mark.skip_handlers_if(
+        lambda _, handler: Features.ALL_PROXY not in handler._SUPPORTED_FEATURES, 'handler does not support ALL_PROXY')
     def test_allproxy(self, handler):
-        url = 'http://foo.com/bar'
+        # This is a bit of a hacky test, but it should be enough to check whether the handler is using the proxy.
-        with handler() as rh:
+        # 0.1s might not be enough of a timeout if proxy is not used in all cases, but should still get failures.
-            response = validate_and_send(rh, Request(url, proxies={'all': f'http://127.0.0.1:{self.proxy_port}'})).read().decode(
+        with handler(proxies={'all': 'http://10.255.255.255'}, timeout=0.1) as rh:
-                'utf-8')
+            with pytest.raises(TransportError):
-            assert response == f'normal: {url}'
+                validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers')).close()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
+        with handler(timeout=0.1) as rh:
-    def test_http_proxy_with_idn(self, handler):
+            with pytest.raises(TransportError):
-        with handler(proxies={
+                validate_and_send(
-            'http': f'http://127.0.0.1:{self.proxy_port}',
+                    rh, Request(
-        }) as rh:
+                        f'http://127.0.0.1:{self.http_port}/headers', proxies={'all': 'http://10.255.255.255'})).close()
-            url = 'http://中文.tw/'
-            response = rh.send(Request(url)).read().decode()
-            # b'xn--fiq228c' is '中文'.encode('idna')
-            assert response == 'normal: http://xn--fiq228c.tw/'
 
 
+@pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
 class TestClientCertificate:
     @classmethod
     def setup_class(cls):
@@ -745,27 +679,23 @@ def _run_test(self, handler, **handler_kwargs):
         ) as rh:
             validate_and_send(rh, Request(f'https://127.0.0.1:{self.port}/video.html')).read().decode()
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_certificate_combined_nopass(self, handler):
         self._run_test(handler, client_cert={
             'client_certificate': os.path.join(self.certdir, 'clientwithkey.crt'),
         })
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_certificate_nocombined_nopass(self, handler):
         self._run_test(handler, client_cert={
             'client_certificate': os.path.join(self.certdir, 'client.crt'),
             'client_certificate_key': os.path.join(self.certdir, 'client.key'),
         })
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_certificate_combined_pass(self, handler):
         self._run_test(handler, client_cert={
             'client_certificate': os.path.join(self.certdir, 'clientwithencryptedkey.crt'),
             'client_certificate_password': 'foobar',
         })
 
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
     def test_certificate_nocombined_pass(self, handler):
         self._run_test(handler, client_cert={
             'client_certificate': os.path.join(self.certdir, 'client.crt'),
@@ -810,7 +740,7 @@ class TestRequestHandlerMisc:
     @pytest.mark.parametrize('handler,logger_name', [
         ('Requests', 'urllib3'),
         ('Websockets', 'websockets.client'),
-        ('Websockets', 'websockets.server')
+        ('Websockets', 'websockets.server'),
     ], indirect=['handler'])
     def test_remove_logging_handler(self, handler, logger_name):
         # Ensure any logging handlers, which may contain a YoutubeDL instance,
@@ -824,8 +754,8 @@ def test_remove_logging_handler(self, handler, logger_name):
         assert len(logging_handlers) == before_count
 
 
+@pytest.mark.parametrize('handler', ['Urllib'], indirect=True)
 class TestUrllibRequestHandler(TestRequestHandlerBase):
-    @pytest.mark.parametrize('handler', ['Urllib'], indirect=True)
     def test_file_urls(self, handler):
         # See https://github.com/ytdl-org/youtube-dl/issues/8227
         tf = tempfile.NamedTemporaryFile(delete=False)
@@ -847,7 +777,6 @@ def test_file_urls(self, handler):
 
         os.unlink(tf.name)
 
-    @pytest.mark.parametrize('handler', ['Urllib'], indirect=True)
     def test_http_error_returns_content(self, handler):
         # urllib HTTPError will try close the underlying response if reference to the HTTPError object is lost
         def get_response():
@@ -860,31 +789,29 @@ def get_response():
 
         assert get_response().read() == b'<html></html>'
 
-    @pytest.mark.parametrize('handler', ['Urllib'], indirect=True)
     def test_verify_cert_error_text(self, handler):
         # Check the output of the error message
         with handler() as rh:
             with pytest.raises(
                 CertificateVerifyError,
-                match=r'\[SSL: CERTIFICATE_VERIFY_FAILED\] certificate verify failed: self.signed certificate'
+                match=r'\[SSL: CERTIFICATE_VERIFY_FAILED\] certificate verify failed: self.signed certificate',
             ):
                 validate_and_send(rh, Request(f'https://127.0.0.1:{self.https_port}/headers'))
 
-    @pytest.mark.parametrize('handler', ['Urllib'], indirect=True)
     @pytest.mark.parametrize('req,match,version_check', [
         # https://github.com/python/cpython/blob/987b712b4aeeece336eed24fcc87a950a756c3e2/Lib/http/client.py#L1256
         # bpo-39603: Check implemented in 3.7.9+, 3.8.5+
         (
             Request('http://127.0.0.1', method='GET\n'),
             'method can\'t contain control characters',
-            lambda v: v < (3, 7, 9) or (3, 8, 0) <= v < (3, 8, 5)
+            lambda v: v < (3, 7, 9) or (3, 8, 0) <= v < (3, 8, 5),
         ),
         # https://github.com/python/cpython/blob/987b712b4aeeece336eed24fcc87a950a756c3e2/Lib/http/client.py#L1265
         # bpo-38576: Check implemented in 3.7.8+, 3.8.3+
         (
             Request('http://127.0.0. 1', method='GET'),
             'URL can\'t contain control characters',
-            lambda v: v < (3, 7, 8) or (3, 8, 0) <= v < (3, 8, 3)
+            lambda v: v < (3, 7, 8) or (3, 8, 0) <= v < (3, 8, 3),
         ),
         # https://github.com/python/cpython/blob/987b712b4aeeece336eed24fcc87a950a756c3e2/Lib/http/client.py#L1288C31-L1288C50
         (Request('http://127.0.0.1', headers={'foo\n': 'bar'}), 'Invalid header name', None),
@@ -913,7 +840,7 @@ class TestRequestsRequestHandler(TestRequestHandlerBase):
         (lambda: requests.exceptions.InvalidHeader(), RequestError),
         # catch-all: https://github.com/psf/requests/blob/main/src/requests/adapters.py#L535
         (lambda: urllib3.exceptions.HTTPError(), TransportError),
-        (lambda: requests.exceptions.RequestException(), RequestError)
+        (lambda: requests.exceptions.RequestException(), RequestError),
         #  (lambda: requests.exceptions.TooManyRedirects(), HTTPError) - Needs a response object
     ])
     def test_request_error_mapping(self, handler, monkeypatch, raised, expected):
@@ -941,12 +868,12 @@ def request(self, *args, **kwargs):
         (
             lambda: urllib3.exceptions.ProtocolError('error', http.client.IncompleteRead(partial=b'abc', expected=4)),
             IncompleteRead,
-            '3 bytes read, 4 more expected'
+            '3 bytes read, 4 more expected',
         ),
         (
             lambda: urllib3.exceptions.ProtocolError('error', urllib3.exceptions.IncompleteRead(partial=3, expected=5)),
             IncompleteRead,
-            '3 bytes read, 5 more expected'
+            '3 bytes read, 5 more expected',
         ),
     ])
     def test_response_error_mapping(self, handler, monkeypatch, raised, expected, match):
@@ -1198,11 +1125,11 @@ class HTTPSupportedRH(ValidationRH):
             ('https', False, {}),
         ]),
         (NoCheckRH, [('http', False, {})]),
-        (ValidationRH, [('http', UnsupportedRequest, {})])
+        (ValidationRH, [('http', UnsupportedRequest, {})]),
     ]
 
     PROXY_SCHEME_TESTS = [
-        # scheme, expected to fail
+        # proxy scheme, expected to fail
         ('Urllib', 'http', [
             ('http', False),
             ('https', UnsupportedRequest),
@@ -1228,30 +1155,41 @@ class HTTPSupportedRH(ValidationRH):
             ('socks5', False),
             ('socks5h', False),
         ]),
+        ('Websockets', 'ws', [
+            ('http', UnsupportedRequest),
+            ('https', UnsupportedRequest),
+            ('socks4', False),
+            ('socks4a', False),
+            ('socks5', False),
+            ('socks5h', False),
+        ]),
         (NoCheckRH, 'http', [('http', False)]),
         (HTTPSupportedRH, 'http', [('http', UnsupportedRequest)]),
-        ('Websockets', 'ws', [('http', UnsupportedRequest)]),
         (NoCheckRH, 'http', [('http', False)]),
         (HTTPSupportedRH, 'http', [('http', UnsupportedRequest)]),
     ]
 
     PROXY_KEY_TESTS = [
-        # key, expected to fail
+        # proxy key, proxy scheme, expected to fail
-        ('Urllib', [
+        ('Urllib', 'http', [
-            ('all', False),
+            ('all', 'http', False),
-            ('unrelated', False),
+            ('unrelated', 'http', False),
         ]),
-        ('Requests', [
+        ('Requests', 'http', [
-            ('all', False),
+            ('all', 'http', False),
-            ('unrelated', False),
+            ('unrelated', 'http', False),
         ]),
-        ('CurlCFFI', [
+        ('CurlCFFI', 'http', [
-            ('all', False),
+            ('all', 'http', False),
-            ('unrelated', False),
+            ('unrelated', 'http', False),
         ]),
-        (NoCheckRH, [('all', False)]),
+        ('Websockets', 'ws', [
-        (HTTPSupportedRH, [('all', UnsupportedRequest)]),
+            ('all', 'socks5', False),
-        (HTTPSupportedRH, [('no', UnsupportedRequest)]),
+            ('unrelated', 'socks5', False),
+        ]),
+        (NoCheckRH, 'http', [('all', 'http', False)]),
+        (HTTPSupportedRH, 'http', [('all', 'http', UnsupportedRequest)]),
+        (HTTPSupportedRH, 'http', [('no', 'http', UnsupportedRequest)]),
     ]
 
     EXTENSION_TESTS = [
@@ -1281,7 +1219,7 @@ class HTTPSupportedRH(ValidationRH):
             ({'impersonate': ImpersonateTarget('chrome', None, None, None)}, False),
             ({'impersonate': ImpersonateTarget(None, None, None, None)}, False),
             ({'impersonate': ImpersonateTarget()}, False),
-            ({'impersonate': 'chrome'}, AssertionError)
+            ({'impersonate': 'chrome'}, AssertionError),
         ]),
         (NoCheckRH, 'http', [
             ({'cookiejar': 'notacookiejar'}, False),
@@ -1293,28 +1231,54 @@ class HTTPSupportedRH(ValidationRH):
         ]),
     ]
 
+    @pytest.mark.parametrize('handler,fail,scheme', [
+        ('Urllib', False, 'http'),
+        ('Requests', False, 'http'),
+        ('CurlCFFI', False, 'http'),
+        ('Websockets', False, 'ws'),
+    ], indirect=['handler'])
+    def test_no_proxy(self, handler, fail, scheme):
+        run_validation(handler, fail, Request(f'{scheme}://', proxies={'no': '127.0.0.1,github.com'}))
+        run_validation(handler, fail, Request(f'{scheme}://'), proxies={'no': '127.0.0.1,github.com'})
+
+    @pytest.mark.parametrize('handler,scheme', [
+        ('Urllib', 'http'),
+        (HTTPSupportedRH, 'http'),
+        ('Requests', 'http'),
+        ('CurlCFFI', 'http'),
+        ('Websockets', 'ws'),
+    ], indirect=['handler'])
+    def test_empty_proxy(self, handler, scheme):
+        run_validation(handler, False, Request(f'{scheme}://', proxies={scheme: None}))
+        run_validation(handler, False, Request(f'{scheme}://'), proxies={scheme: None})
+
+    @pytest.mark.parametrize('proxy_url', ['//example.com', 'example.com', '127.0.0.1', '/a/b/c'])
+    @pytest.mark.parametrize('handler,scheme', [
+        ('Urllib', 'http'),
+        (HTTPSupportedRH, 'http'),
+        ('Requests', 'http'),
+        ('CurlCFFI', 'http'),
+        ('Websockets', 'ws'),
+    ], indirect=['handler'])
+    def test_invalid_proxy_url(self, handler, scheme, proxy_url):
+        run_validation(handler, UnsupportedRequest, Request(f'{scheme}://', proxies={scheme: proxy_url}))
+
     @pytest.mark.parametrize('handler,scheme,fail,handler_kwargs', [
         (handler_tests[0], scheme, fail, handler_kwargs)
         for handler_tests in URL_SCHEME_TESTS
         for scheme, fail, handler_kwargs in handler_tests[1]
-
     ], indirect=['handler'])
     def test_url_scheme(self, handler, scheme, fail, handler_kwargs):
         run_validation(handler, fail, Request(f'{scheme}://'), **(handler_kwargs or {}))
 
-    @pytest.mark.parametrize('handler,fail', [('Urllib', False), ('Requests', False), ('CurlCFFI', False)], indirect=['handler'])
+    @pytest.mark.parametrize('handler,scheme,proxy_key,proxy_scheme,fail', [
-    def test_no_proxy(self, handler, fail):
+        (handler_tests[0], handler_tests[1], proxy_key, proxy_scheme, fail)
-        run_validation(handler, fail, Request('http://', proxies={'no': '127.0.0.1,github.com'}))
-        run_validation(handler, fail, Request('http://'), proxies={'no': '127.0.0.1,github.com'})
-
-    @pytest.mark.parametrize('handler,proxy_key,fail', [
-        (handler_tests[0], proxy_key, fail)
         for handler_tests in PROXY_KEY_TESTS
-        for proxy_key, fail in handler_tests[1]
+        for proxy_key, proxy_scheme, fail in handler_tests[2]
     ], indirect=['handler'])
-    def test_proxy_key(self, handler, proxy_key, fail):
+    def test_proxy_key(self, handler, scheme, proxy_key, proxy_scheme, fail):
-        run_validation(handler, fail, Request('http://', proxies={proxy_key: 'http://example.com'}))
+        run_validation(handler, fail, Request(f'{scheme}://', proxies={proxy_key: f'{proxy_scheme}://example.com'}))
-        run_validation(handler, fail, Request('http://'), proxies={proxy_key: 'http://example.com'})
+        run_validation(handler, fail, Request(f'{scheme}://'), proxies={proxy_key: f'{proxy_scheme}://example.com'})
 
     @pytest.mark.parametrize('handler,req_scheme,scheme,fail', [
         (handler_tests[0], handler_tests[1], scheme, fail)
@@ -1325,16 +1289,6 @@ def test_proxy_scheme(self, handler, req_scheme, scheme, fail):
         run_validation(handler, fail, Request(f'{req_scheme}://', proxies={req_scheme: f'{scheme}://example.com'}))
         run_validation(handler, fail, Request(f'{req_scheme}://'), proxies={req_scheme: f'{scheme}://example.com'})
 
-    @pytest.mark.parametrize('handler', ['Urllib', HTTPSupportedRH, 'Requests', 'CurlCFFI'], indirect=True)
-    def test_empty_proxy(self, handler):
-        run_validation(handler, False, Request('http://', proxies={'http': None}))
-        run_validation(handler, False, Request('http://'), proxies={'http': None})
-
-    @pytest.mark.parametrize('proxy_url', ['//example.com', 'example.com', '127.0.0.1', '/a/b/c'])
-    @pytest.mark.parametrize('handler', ['Urllib', 'Requests', 'CurlCFFI'], indirect=True)
-    def test_invalid_proxy_url(self, handler, proxy_url):
-        run_validation(handler, UnsupportedRequest, Request('http://', proxies={'http': proxy_url}))
-
     @pytest.mark.parametrize('handler,scheme,extensions,fail', [
         (handler_tests[0], handler_tests[1], extensions, fail)
         for handler_tests in EXTENSION_TESTS
@@ -1520,7 +1474,7 @@ def test_compat_opener(self):
     @pytest.mark.parametrize('proxy,expected', [
         ('http://127.0.0.1:8080', {'all': 'http://127.0.0.1:8080'}),
         ('', {'all': '__noproxy__'}),
-        (None, {'http': 'http://127.0.0.1:8081', 'https': 'http://127.0.0.1:8081'})  # env, set https
+        (None, {'http': 'http://127.0.0.1:8081', 'https': 'http://127.0.0.1:8081'}),  # env, set https
     ])
     def test_proxy(self, proxy, expected, monkeypatch):
         monkeypatch.setenv('HTTP_PROXY', 'http://127.0.0.1:8081')
@@ -1592,7 +1546,7 @@ def _send(self, request: Request):
         with FakeImpersonationRHYDL() as ydl:
             with pytest.raises(
                 RequestError,
-                match=r'Impersonate target "test" is not available'
+                match=r'Impersonate target "test" is not available',
             ):
                 ydl.urlopen(Request('http://', extensions={'impersonate': ImpersonateTarget('test', None, None, None)}))
 
@@ -1604,7 +1558,7 @@ def _send(self, request: Request):
                         pass
 
                     _SUPPORTED_URL_SCHEMES = ('http',)
-                    _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget('abc',): 'test'}
+                    _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget('abc'): 'test'}
                     _SUPPORTED_PROXY_SCHEMES = None
 
                 super().__init__(*args, **kwargs)
@@ -1613,14 +1567,14 @@ def _send(self, request: Request):
         with FakeHTTPRHYDL() as ydl:
             with pytest.raises(
                 RequestError,
-                match=r'Impersonate target "test" is not available'
+                match=r'Impersonate target "test" is not available',
             ):
                 ydl.urlopen(Request('http://', extensions={'impersonate': ImpersonateTarget('test', None, None, None)}))
 
     def test_raise_impersonate_error(self):
         with pytest.raises(
             YoutubeDLError,
-            match=r'Impersonate target "test" is not available'
+            match=r'Impersonate target "test" is not available',
         ):
             FakeYDL({'impersonate': ImpersonateTarget('test', None, None, None)})
 
@@ -1638,7 +1592,7 @@ def _send(self, request: Request):
         monkeypatch.setattr(FakeYDL, 'build_request_director', lambda cls, handlers, preferences=None: brh(cls, handlers=[IRH]))
 
         with FakeYDL({
-            'impersonate': ImpersonateTarget('abc', None, None, None)
+            'impersonate': ImpersonateTarget('abc', None, None, None),
         }) as ydl:
             rh = self.build_handler(ydl, IRH)
             assert rh.impersonate == ImpersonateTarget('abc', None, None, None)
@@ -1650,7 +1604,7 @@ class TestRH(ImpersonateRequestHandler):
                 def _send(self, request: Request):
                     pass
                 _SUPPORTED_URL_SCHEMES = ('http',)
-                _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget(target_client,): 'test'}
+                _SUPPORTED_IMPERSONATE_TARGET_MAP = {ImpersonateTarget(target_client): 'test'}
                 RH_KEY = target_client
                 RH_NAME = target_client
             handlers.append(TestRH)
@@ -1660,7 +1614,7 @@ def _send(self, request: Request):
             assert set(ydl._get_available_impersonate_targets()) == {
                 (ImpersonateTarget('xyz'), 'xyz'),
                 (ImpersonateTarget('abc'), 'abc'),
-                (ImpersonateTarget('asd'), 'asd')
+                (ImpersonateTarget('asd'), 'asd'),
             }
             assert ydl._impersonate_target_available(ImpersonateTarget('abc'))
             assert ydl._impersonate_target_available(ImpersonateTarget())
@@ -1883,7 +1837,7 @@ def test_copy(self):
             extensions={'cookiejar': CookieJar()},
             headers={'Accept-Encoding': 'br'},
             proxies={'http': 'http://127.0.0.1'},
-            data=[b'123']
+            data=[b'123'],
         )
         req_copy = req.copy()
         assert req_copy is not req
@@ -1909,7 +1863,7 @@ class AnotherRequest(Request):
         assert isinstance(req.copy(), AnotherRequest)
 
     def test_url(self):
-        req = Request(url='https://фtest.example.com/ some spaceв?ä=c',)
+        req = Request(url='https://фtest.example.com/ some spaceв?ä=c')
         assert req.url == 'https://xn--test-z6d.example.com/%20some%20space%D0%B2?%C3%A4=c'
 
         assert Request(url='//example.com').url == 'http://example.com'
@@ -1924,7 +1878,7 @@ class TestResponse:
         ('custom', 200, 'custom'),
         (None, 404, 'Not Found'),  # fallback status
         ('', 403, 'Forbidden'),
-        (None, 999, None)
+        (None, 999, None),
     ])
     def test_reason(self, reason, status, expected):
         res = Response(io.BytesIO(b''), url='test://', headers={}, status=status, reason=reason)
@@ -1979,7 +1933,7 @@ def test_target_from_str(self, target_str, expected):
 
     @pytest.mark.parametrize('target_str', [
         '-120', ':-12.0', '-12:-12', '-:-',
-        '::', 'a-c-d:', 'a-c-d:e-f-g', 'a:b:'
+        '::', 'a-c-d:', 'a-c-d:e-f-g', 'a:b:',
     ])
     def test_target_from_invalid_str(self, target_str):
         with pytest.raises(ValueError):
@@ -1995,7 +1949,7 @@ def test_target_from_invalid_str(self, target_str):
         (ImpersonateTarget('abc', '120', 'xyz', None), 'abc-120:xyz'),
         (ImpersonateTarget('abc', None, 'xyz'), 'abc:xyz'),
         (ImpersonateTarget(None, None, 'xyz', '6.5'), ':xyz-6.5'),
-        (ImpersonateTarget('abc', ), 'abc'),
+        (ImpersonateTarget('abc'), 'abc'),
         (ImpersonateTarget(None, None, None, None), ''),
     ])
     def test_str(self, target, expected):

test/test_networking_utils.py

@@ -39,7 +39,7 @@ def test_select_proxy(self):
         proxies = {
             'all': 'socks5://example.com',
             'http': 'http://example.com:1080',
-            'no': 'bypass.example.com,yt-dl.org'
+            'no': 'bypass.example.com,yt-dl.org',
         }
 
         assert select_proxy('https://example.com', proxies) == proxies['all']
@@ -54,7 +54,7 @@ def test_select_proxy(self):
             'port': 1080,
             'rdns': True,
             'username': None,
-            'password': None
+            'password': None,
         }),
         ('socks5://user:@example.com:5555', {
             'proxytype': ProxyType.SOCKS5,
@@ -62,7 +62,7 @@ def test_select_proxy(self):
             'port': 5555,
             'rdns': False,
             'username': 'user',
-            'password': ''
+            'password': '',
         }),
         ('socks4://u%40ser:pa%20ss@127.0.0.1:1080', {
             'proxytype': ProxyType.SOCKS4,
@@ -70,7 +70,7 @@ def test_select_proxy(self):
             'port': 1080,
             'rdns': False,
             'username': 'u@ser',
-            'password': 'pa ss'
+            'password': 'pa ss',
         }),
         ('socks4a://:pa%20ss@127.0.0.1', {
             'proxytype': ProxyType.SOCKS4A,
@@ -78,8 +78,8 @@ def test_select_proxy(self):
             'port': 1080,
             'rdns': True,
             'username': '',
-            'password': 'pa ss'
+            'password': 'pa ss',
-        })
+        }),
     ])
     def test_make_socks_proxy_opts(self, socks_proxy, expected):
         assert make_socks_proxy_opts(socks_proxy) == expected

test/test_overwrites.py

@@ -27,7 +27,7 @@ def test_default_overwrites(self):
             [
                 sys.executable, 'yt_dlp/__main__.py',
                 '-o', 'test.webm',
-                'https://www.youtube.com/watch?v=jNQXAC9IVRw'
+                'https://www.youtube.com/watch?v=jNQXAC9IVRw',
             ], cwd=root_dir, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         sout, serr = outp.communicate()
         self.assertTrue(b'has already been downloaded' in sout)
@@ -39,7 +39,7 @@ def test_yes_overwrites(self):
             [
                 sys.executable, 'yt_dlp/__main__.py', '--yes-overwrites',
                 '-o', 'test.webm',
-                'https://www.youtube.com/watch?v=jNQXAC9IVRw'
+                'https://www.youtube.com/watch?v=jNQXAC9IVRw',
             ], cwd=root_dir, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         sout, serr = outp.communicate()
         self.assertTrue(b'has already been downloaded' not in sout)

test/test_plugins.py

@@ -31,7 +31,7 @@ def test_extractor_classes(self):
 
         # don't load modules with underscore prefix
         self.assertFalse(
-            f'{PACKAGE_NAME}.extractor._ignore' in sys.modules.keys(),
+            f'{PACKAGE_NAME}.extractor._ignore' in sys.modules,
             'loaded module beginning with underscore')
         self.assertNotIn('IgnorePluginIE', plugins_ie.keys())
 

test/test_post_hooks.py

@@ -59,7 +59,7 @@ def hook_two(self, filename):
 
     def hook_three(self, filename):
         self.files.append(filename)
-        raise Exception('Test exception for \'%s\'' % filename)
+        raise Exception(f'Test exception for \'{filename}\'')
 
     def tearDown(self):
         for f in self.files:

test/test_postprocessors.py

@@ -9,7 +9,7 @@
 
 
 from yt_dlp import YoutubeDL
-from yt_dlp.compat import compat_shlex_quote
+from yt_dlp.utils import shell_quote
 from yt_dlp.postprocessor import (
     ExecPP,
     FFmpegThumbnailsConvertorPP,
@@ -65,7 +65,7 @@ class TestExec(unittest.TestCase):
     def test_parse_cmd(self):
         pp = ExecPP(YoutubeDL(), '')
         info = {'filepath': 'file name'}
-        cmd = 'echo %s' % compat_shlex_quote(info['filepath'])
+        cmd = 'echo {}'.format(shell_quote(info['filepath']))
 
         self.assertEqual(pp.parse_cmd('echo', info), cmd)
         self.assertEqual(pp.parse_cmd('echo {}', info), cmd)
@@ -125,7 +125,8 @@ def test_remove_marked_arrange_sponsors_CanGetThroughUnaltered(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, chapters, [])
 
     def test_remove_marked_arrange_sponsors_ChapterWithSponsors(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 20, 'sponsor'),
             self._sponsor_chapter(30, 40, 'preview'),
             self._sponsor_chapter(50, 60, 'filler')]
@@ -136,7 +137,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithSponsors(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
     def test_remove_marked_arrange_sponsors_SponsorBlockChapters(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 20, 'chapter', title='sb c1'),
             self._sponsor_chapter(15, 16, 'chapter', title='sb c2'),
             self._sponsor_chapter(30, 40, 'preview'),
@@ -149,10 +151,14 @@ def test_remove_marked_arrange_sponsors_SponsorBlockChapters(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
     def test_remove_marked_arrange_sponsors_UniqueNamesForOverlappingSponsors(self):
-        chapters = self._chapters([120], ['c']) + [
+        chapters = [
-            self._sponsor_chapter(10, 45, 'sponsor'), self._sponsor_chapter(20, 40, 'selfpromo'),
+            *self._chapters([120], ['c']),
-            self._sponsor_chapter(50, 70, 'sponsor'), self._sponsor_chapter(60, 85, 'selfpromo'),
+            self._sponsor_chapter(10, 45, 'sponsor'),
-            self._sponsor_chapter(90, 120, 'selfpromo'), self._sponsor_chapter(100, 110, 'sponsor')]
+            self._sponsor_chapter(20, 40, 'selfpromo'),
+            self._sponsor_chapter(50, 70, 'sponsor'),
+            self._sponsor_chapter(60, 85, 'selfpromo'),
+            self._sponsor_chapter(90, 120, 'selfpromo'),
+            self._sponsor_chapter(100, 110, 'sponsor')]
         expected = self._chapters(
             [10, 20, 40, 45, 50, 60, 70, 85, 90, 100, 110, 120],
             ['c', '[SponsorBlock]: Sponsor', '[SponsorBlock]: Sponsor, Unpaid/Self Promotion',
@@ -172,7 +178,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithCuts(self):
             chapters, self._chapters([40], ['c']), cuts)
 
     def test_remove_marked_arrange_sponsors_ChapterWithSponsorsAndCuts(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 20, 'sponsor'),
             self._sponsor_chapter(30, 40, 'selfpromo', remove=True),
             self._sponsor_chapter(50, 60, 'interaction')]
@@ -185,24 +192,29 @@ def test_remove_marked_arrange_sponsors_ChapterWithSponsorsAndCuts(self):
     def test_remove_marked_arrange_sponsors_ChapterWithSponsorCutInTheMiddle(self):
         cuts = [self._sponsor_chapter(20, 30, 'selfpromo', remove=True),
                 self._chapter(40, 50, remove=True)]
-        chapters = self._chapters([70], ['c']) + [self._sponsor_chapter(10, 60, 'sponsor')] + cuts
+        chapters = [
+            *self._chapters([70], ['c']),
+            self._sponsor_chapter(10, 60, 'sponsor'),
+            *cuts]
         expected = self._chapters(
             [10, 40, 50], ['c', '[SponsorBlock]: Sponsor', 'c'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_ChapterWithCutHidingSponsor(self):
         cuts = [self._sponsor_chapter(20, 50, 'selfpromo', remove=True)]
-        chapters = self._chapters([60], ['c']) + [
+        chapters = [
+            *self._chapters([60], ['c']),
             self._sponsor_chapter(10, 20, 'intro'),
             self._sponsor_chapter(30, 40, 'sponsor'),
             self._sponsor_chapter(50, 60, 'outro'),
-        ] + cuts
+            *cuts]
         expected = self._chapters(
             [10, 20, 30], ['c', '[SponsorBlock]: Intermission/Intro Animation', '[SponsorBlock]: Endcards/Credits'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_ChapterWithAdjacentSponsors(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 20, 'sponsor'),
             self._sponsor_chapter(20, 30, 'selfpromo'),
             self._sponsor_chapter(30, 40, 'interaction')]
@@ -213,7 +225,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithAdjacentSponsors(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
     def test_remove_marked_arrange_sponsors_ChapterWithAdjacentCuts(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 20, 'sponsor'),
             self._sponsor_chapter(20, 30, 'interaction', remove=True),
             self._chapter(30, 40, remove=True),
@@ -226,7 +239,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithAdjacentCuts(self):
             chapters, expected, [self._chapter(20, 50, remove=True)])
 
     def test_remove_marked_arrange_sponsors_ChapterWithOverlappingSponsors(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 30, 'sponsor'),
             self._sponsor_chapter(20, 50, 'selfpromo'),
             self._sponsor_chapter(40, 60, 'interaction')]
@@ -238,7 +252,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithOverlappingSponsors(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
     def test_remove_marked_arrange_sponsors_ChapterWithOverlappingCuts(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 30, 'sponsor', remove=True),
             self._sponsor_chapter(20, 50, 'selfpromo', remove=True),
             self._sponsor_chapter(40, 60, 'interaction', remove=True)]
@@ -246,7 +261,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithOverlappingCuts(self):
             chapters, self._chapters([20], ['c']), [self._chapter(10, 60, remove=True)])
 
     def test_remove_marked_arrange_sponsors_ChapterWithRunsOfOverlappingSponsors(self):
-        chapters = self._chapters([170], ['c']) + [
+        chapters = [
+            *self._chapters([170], ['c']),
             self._sponsor_chapter(0, 30, 'intro'),
             self._sponsor_chapter(20, 50, 'sponsor'),
             self._sponsor_chapter(40, 60, 'selfpromo'),
@@ -267,7 +283,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithRunsOfOverlappingSponsors(sel
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
     def test_remove_marked_arrange_sponsors_ChapterWithRunsOfOverlappingCuts(self):
-        chapters = self._chapters([170], ['c']) + [
+        chapters = [
+            *self._chapters([170], ['c']),
             self._chapter(0, 30, remove=True),
             self._sponsor_chapter(20, 50, 'sponsor', remove=True),
             self._chapter(40, 60, remove=True),
@@ -284,7 +301,8 @@ def test_remove_marked_arrange_sponsors_ChapterWithRunsOfOverlappingCuts(self):
             chapters, self._chapters([20], ['c']), expected_cuts)
 
     def test_remove_marked_arrange_sponsors_OverlappingSponsorsDifferentTitlesAfterCut(self):
-        chapters = self._chapters([60], ['c']) + [
+        chapters = [
+            *self._chapters([60], ['c']),
             self._sponsor_chapter(10, 60, 'sponsor'),
             self._sponsor_chapter(10, 40, 'intro'),
             self._sponsor_chapter(30, 50, 'interaction'),
@@ -297,7 +315,8 @@ def test_remove_marked_arrange_sponsors_OverlappingSponsorsDifferentTitlesAfterC
             chapters, expected, [self._chapter(30, 50, remove=True)])
 
     def test_remove_marked_arrange_sponsors_SponsorsNoLongerOverlapAfterCut(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 30, 'sponsor'),
             self._sponsor_chapter(20, 50, 'interaction'),
             self._sponsor_chapter(30, 50, 'selfpromo', remove=True),
@@ -310,7 +329,8 @@ def test_remove_marked_arrange_sponsors_SponsorsNoLongerOverlapAfterCut(self):
             chapters, expected, [self._chapter(30, 50, remove=True)])
 
     def test_remove_marked_arrange_sponsors_SponsorsStillOverlapAfterCut(self):
-        chapters = self._chapters([70], ['c']) + [
+        chapters = [
+            *self._chapters([70], ['c']),
             self._sponsor_chapter(10, 60, 'sponsor'),
             self._sponsor_chapter(20, 60, 'interaction'),
             self._sponsor_chapter(30, 50, 'selfpromo', remove=True)]
@@ -321,7 +341,8 @@ def test_remove_marked_arrange_sponsors_SponsorsStillOverlapAfterCut(self):
             chapters, expected, [self._chapter(30, 50, remove=True)])
 
     def test_remove_marked_arrange_sponsors_ChapterWithRunsOfOverlappingSponsorsAndCuts(self):
-        chapters = self._chapters([200], ['c']) + [
+        chapters = [
+            *self._chapters([200], ['c']),
             self._sponsor_chapter(10, 40, 'sponsor'),
             self._sponsor_chapter(10, 30, 'intro'),
             self._chapter(20, 30, remove=True),
@@ -347,8 +368,9 @@ def test_remove_marked_arrange_sponsors_ChapterWithRunsOfOverlappingSponsorsAndC
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, expected_cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorOverlapsMultipleChapters(self):
-        chapters = (self._chapters([20, 40, 60, 80, 100], ['c1', 'c2', 'c3', 'c4', 'c5'])
+        chapters = [
-                    + [self._sponsor_chapter(10, 90, 'sponsor')])
+            *self._chapters([20, 40, 60, 80, 100], ['c1', 'c2', 'c3', 'c4', 'c5']),
+            self._sponsor_chapter(10, 90, 'sponsor')]
         expected = self._chapters([10, 90, 100], ['c1', '[SponsorBlock]: Sponsor', 'c5'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
@@ -359,9 +381,10 @@ def test_remove_marked_arrange_sponsors_CutOverlapsMultipleChapters(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorsWithinSomeChaptersAndOverlappingOthers(self):
-        chapters = (self._chapters([10, 40, 60, 80], ['c1', 'c2', 'c3', 'c4'])
+        chapters = [
-                    + [self._sponsor_chapter(20, 30, 'sponsor'),
+            *self._chapters([10, 40, 60, 80], ['c1', 'c2', 'c3', 'c4']),
-                       self._sponsor_chapter(50, 70, 'selfpromo')])
+            self._sponsor_chapter(20, 30, 'sponsor'),
+            self._sponsor_chapter(50, 70, 'selfpromo')]
         expected = self._chapters([10, 20, 30, 40, 50, 70, 80],
                                   ['c1', 'c2', '[SponsorBlock]: Sponsor', 'c2', 'c3',
                                    '[SponsorBlock]: Unpaid/Self Promotion', 'c4'])
@@ -374,8 +397,9 @@ def test_remove_marked_arrange_sponsors_CutsWithinSomeChaptersAndOverlappingOthe
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_ChaptersAfterLastSponsor(self):
-        chapters = (self._chapters([20, 40, 50, 60], ['c1', 'c2', 'c3', 'c4'])
+        chapters = [
-                    + [self._sponsor_chapter(10, 30, 'music_offtopic')])
+            *self._chapters([20, 40, 50, 60], ['c1', 'c2', 'c3', 'c4']),
+            self._sponsor_chapter(10, 30, 'music_offtopic')]
         expected = self._chapters(
             [10, 30, 40, 50, 60],
             ['c1', '[SponsorBlock]: Non-Music Section', 'c2', 'c3', 'c4'])
@@ -388,8 +412,9 @@ def test_remove_marked_arrange_sponsors_ChaptersAfterLastCut(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorStartsAtChapterStart(self):
-        chapters = (self._chapters([10, 20, 40], ['c1', 'c2', 'c3'])
+        chapters = [
-                    + [self._sponsor_chapter(20, 30, 'sponsor')])
+            *self._chapters([10, 20, 40], ['c1', 'c2', 'c3']),
+            self._sponsor_chapter(20, 30, 'sponsor')]
         expected = self._chapters([10, 20, 30, 40], ['c1', 'c2', '[SponsorBlock]: Sponsor', 'c3'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
@@ -400,8 +425,9 @@ def test_remove_marked_arrange_sponsors_CutStartsAtChapterStart(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorEndsAtChapterEnd(self):
-        chapters = (self._chapters([10, 30, 40], ['c1', 'c2', 'c3'])
+        chapters = [
-                    + [self._sponsor_chapter(20, 30, 'sponsor')])
+            *self._chapters([10, 30, 40], ['c1', 'c2', 'c3']),
+            self._sponsor_chapter(20, 30, 'sponsor')]
         expected = self._chapters([10, 20, 30, 40], ['c1', 'c2', '[SponsorBlock]: Sponsor', 'c3'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
@@ -412,8 +438,9 @@ def test_remove_marked_arrange_sponsors_CutEndsAtChapterEnd(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorCoincidesWithChapters(self):
-        chapters = (self._chapters([10, 20, 30, 40], ['c1', 'c2', 'c3', 'c4'])
+        chapters = [
-                    + [self._sponsor_chapter(10, 30, 'sponsor')])
+            *self._chapters([10, 20, 30, 40], ['c1', 'c2', 'c3', 'c4']),
+            self._sponsor_chapter(10, 30, 'sponsor')]
         expected = self._chapters([10, 30, 40], ['c1', '[SponsorBlock]: Sponsor', 'c4'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
@@ -424,8 +451,9 @@ def test_remove_marked_arrange_sponsors_CutCoincidesWithChapters(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorsAtVideoBoundaries(self):
-        chapters = (self._chapters([20, 40, 60], ['c1', 'c2', 'c3'])
+        chapters = [
-                    + [self._sponsor_chapter(0, 10, 'intro'), self._sponsor_chapter(50, 60, 'outro')])
+            *self._chapters([20, 40, 60], ['c1', 'c2', 'c3']),
+            self._sponsor_chapter(0, 10, 'intro'), self._sponsor_chapter(50, 60, 'outro')]
         expected = self._chapters(
             [10, 20, 40, 50, 60], ['[SponsorBlock]: Intermission/Intro Animation', 'c1', 'c2', 'c3', '[SponsorBlock]: Endcards/Credits'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
@@ -437,8 +465,10 @@ def test_remove_marked_arrange_sponsors_CutsAtVideoBoundaries(self):
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_SponsorsOverlapChaptersAtVideoBoundaries(self):
-        chapters = (self._chapters([10, 40, 50], ['c1', 'c2', 'c3'])
+        chapters = [
-                    + [self._sponsor_chapter(0, 20, 'intro'), self._sponsor_chapter(30, 50, 'outro')])
+            *self._chapters([10, 40, 50], ['c1', 'c2', 'c3']),
+            self._sponsor_chapter(0, 20, 'intro'),
+            self._sponsor_chapter(30, 50, 'outro')]
         expected = self._chapters(
             [20, 30, 50], ['[SponsorBlock]: Intermission/Intro Animation', 'c2', '[SponsorBlock]: Endcards/Credits'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
@@ -450,8 +480,10 @@ def test_remove_marked_arrange_sponsors_CutsOverlapChaptersAtVideoBoundaries(sel
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, cuts)
 
     def test_remove_marked_arrange_sponsors_EverythingSponsored(self):
-        chapters = (self._chapters([10, 20, 30, 40], ['c1', 'c2', 'c3', 'c4'])
+        chapters = [
-                    + [self._sponsor_chapter(0, 20, 'intro'), self._sponsor_chapter(20, 40, 'outro')])
+            *self._chapters([10, 20, 30, 40], ['c1', 'c2', 'c3', 'c4']),
+            self._sponsor_chapter(0, 20, 'intro'),
+            self._sponsor_chapter(20, 40, 'outro')]
         expected = self._chapters([20, 40], ['[SponsorBlock]: Intermission/Intro Animation', '[SponsorBlock]: Endcards/Credits'])
         self._remove_marked_arrange_sponsors_test_impl(chapters, expected, [])
 
@@ -491,38 +523,39 @@ def test_remove_marked_arrange_sponsors_TinyChapterAtTheStartPrependedToTheNext(
             chapters, self._chapters([2.5], ['c2']), cuts)
 
     def test_remove_marked_arrange_sponsors_TinyChaptersResultingFromSponsorOverlapAreIgnored(self):
-        chapters = self._chapters([1, 3, 4], ['c1', 'c2', 'c3']) + [
+        chapters = [
+            *self._chapters([1, 3, 4], ['c1', 'c2', 'c3']),
             self._sponsor_chapter(1.5, 2.5, 'sponsor')]
         self._remove_marked_arrange_sponsors_test_impl(
             chapters, self._chapters([1.5, 2.5, 4], ['c1', '[SponsorBlock]: Sponsor', 'c3']), [])
 
     def test_remove_marked_arrange_sponsors_TinySponsorsOverlapsAreIgnored(self):
-        chapters = self._chapters([2, 3, 5], ['c1', 'c2', 'c3']) + [
+        chapters = [
+            *self._chapters([2, 3, 5], ['c1', 'c2', 'c3']),
             self._sponsor_chapter(1, 3, 'sponsor'),
-            self._sponsor_chapter(2.5, 4, 'selfpromo')
+            self._sponsor_chapter(2.5, 4, 'selfpromo')]
-        ]
         self._remove_marked_arrange_sponsors_test_impl(
             chapters, self._chapters([1, 3, 4, 5], [
                 'c1', '[SponsorBlock]: Sponsor', '[SponsorBlock]: Unpaid/Self Promotion', 'c3']), [])
 
     def test_remove_marked_arrange_sponsors_TinySponsorsPrependedToTheNextSponsor(self):
-        chapters = self._chapters([4], ['c']) + [
+        chapters = [
+            *self._chapters([4], ['c']),
             self._sponsor_chapter(1.5, 2, 'sponsor'),
-            self._sponsor_chapter(2, 4, 'selfpromo')
+            self._sponsor_chapter(2, 4, 'selfpromo')]
-        ]
         self._remove_marked_arrange_sponsors_test_impl(
             chapters, self._chapters([1.5, 4], ['c', '[SponsorBlock]: Unpaid/Self Promotion']), [])
 
     def test_remove_marked_arrange_sponsors_SmallestSponsorInTheOverlapGetsNamed(self):
         self._pp._sponsorblock_chapter_title = '[SponsorBlock]: %(name)s'
-        chapters = self._chapters([10], ['c']) + [
+        chapters = [
+            *self._chapters([10], ['c']),
             self._sponsor_chapter(2, 8, 'sponsor'),
-            self._sponsor_chapter(4, 6, 'selfpromo')
+            self._sponsor_chapter(4, 6, 'selfpromo')]
-        ]
         self._remove_marked_arrange_sponsors_test_impl(
             chapters, self._chapters([2, 4, 6, 8, 10], [
                 'c', '[SponsorBlock]: Sponsor', '[SponsorBlock]: Unpaid/Self Promotion',
-                '[SponsorBlock]: Sponsor', 'c'
+                '[SponsorBlock]: Sponsor', 'c',
             ]), [])
 
     def test_make_concat_opts_CommonCase(self):

test/test_socks.py

@@ -95,7 +95,7 @@ def handle(self):
             return
 
         elif Socks5Auth.AUTH_USER_PASS in methods:
-            self.connection.sendall(struct.pack("!BB", SOCKS5_VERSION, Socks5Auth.AUTH_USER_PASS))
+            self.connection.sendall(struct.pack('!BB', SOCKS5_VERSION, Socks5Auth.AUTH_USER_PASS))
 
             _, user_len = struct.unpack('!BB', self.connection.recv(2))
             username = self.connection.recv(user_len).decode()
@@ -174,7 +174,7 @@ def handle(self):
         if 0x0 < dest_ip <= 0xFF:
             use_remote_dns = True
         else:
-            socks_info['ipv4_address'] = socket.inet_ntoa(struct.pack("!I", dest_ip))
+            socks_info['ipv4_address'] = socket.inet_ntoa(struct.pack('!I', dest_ip))
 
         user_id = self._read_until_null().decode()
         if user_id != (self.socks_kwargs.get('user_id') or ''):
@@ -291,7 +291,7 @@ def ctx(request):
         ('Urllib', 'http'),
         ('Requests', 'http'),
         ('Websockets', 'ws'),
-        ('CurlCFFI', 'http')
+        ('CurlCFFI', 'http'),
     ], indirect=True)
 class TestSocks4Proxy:
     def test_socks4_no_auth(self, handler, ctx):
@@ -366,7 +366,7 @@ def test_timeout(self, handler, ctx):
         ('Urllib', 'http'),
         ('Requests', 'http'),
         ('Websockets', 'ws'),
-        ('CurlCFFI', 'http')
+        ('CurlCFFI', 'http'),
     ], indirect=True)
 class TestSocks5Proxy:
 

test/test_subtitles.py

@@ -40,12 +40,11 @@ def setUp(self):
         self.ie = self.IE()
         self.DL.add_info_extractor(self.ie)
         if not self.IE.working():
-            print('Skipping: %s marked as not _WORKING' % self.IE.ie_key())
+            print(f'Skipping: {self.IE.ie_key()} marked as not _WORKING')
             self.skipTest('IE marked as not _WORKING')
 
     def getInfoDict(self):
-        info_dict = self.DL.extract_info(self.url, download=False)
+        return self.DL.extract_info(self.url, download=False)
-        return info_dict
 
     def getSubtitles(self):
         info_dict = self.getInfoDict()
@@ -87,7 +86,7 @@ def test_youtube_allsubtitles(self):
         self.assertEqual(md5(subtitles['en']), 'ae1bd34126571a77aabd4d276b28044d')
         self.assertEqual(md5(subtitles['it']), '0e0b667ba68411d88fd1c5f4f4eab2f9')
         for lang in ['fr', 'de']:
-            self.assertTrue(subtitles.get(lang) is not None, 'Subtitles for \'%s\' not extracted' % lang)
+            self.assertTrue(subtitles.get(lang) is not None, f'Subtitles for \'{lang}\' not extracted')
 
     def _test_subtitles_format(self, fmt, md5_hash, lang='en'):
         self.DL.params['writesubtitles'] = True
@@ -157,7 +156,7 @@ def test_allsubtitles(self):
         self.assertEqual(md5(subtitles['en']), '976553874490cba125086bbfea3ff76f')
         self.assertEqual(md5(subtitles['fr']), '594564ec7d588942e384e920e5341792')
         for lang in ['es', 'fr', 'de']:
-            self.assertTrue(subtitles.get(lang) is not None, 'Subtitles for \'%s\' not extracted' % lang)
+            self.assertTrue(subtitles.get(lang) is not None, f'Subtitles for \'{lang}\' not extracted')
 
     def test_nosubtitles(self):
         self.DL.expect_warning('video doesn\'t have subtitles')
@@ -182,7 +181,7 @@ def test_allsubtitles(self):
         self.assertEqual(md5(subtitles['en']), '4262c1665ff928a2dada178f62cb8d14')
         self.assertEqual(md5(subtitles['fr']), '66a63f7f42c97a50f8c0e90bc7797bb5')
         for lang in ['es', 'fr', 'de']:
-            self.assertTrue(subtitles.get(lang) is not None, 'Subtitles for \'%s\' not extracted' % lang)
+            self.assertTrue(subtitles.get(lang) is not None, f'Subtitles for \'{lang}\' not extracted')
 
 
 @is_download_test

test/test_traversal.py

@@ -31,7 +31,7 @@ def test_traversal_base(self):
             'allow tuple path'
         assert traverse_obj(_TEST_DATA, ['str']) == 'str', \
             'allow list path'
-        assert traverse_obj(_TEST_DATA, (value for value in ("str",))) == 'str', \
+        assert traverse_obj(_TEST_DATA, (value for value in ('str',))) == 'str', \
             'allow iterable path'
         assert traverse_obj(_TEST_DATA, 'str') == 'str', \
             'single items should be treated as a path'
@@ -70,7 +70,7 @@ def test_traversal_function(self):
 
     def test_traversal_set(self):
         # transformation/type, like `expected_type`
-        assert traverse_obj(_TEST_DATA, (..., {str.upper}, )) == ['STR'], \
+        assert traverse_obj(_TEST_DATA, (..., {str.upper})) == ['STR'], \
             'Function in set should be a transformation'
         assert traverse_obj(_TEST_DATA, (..., {str})) == ['str'], \
             'Type in set should be a type filter'
@@ -276,7 +276,7 @@ def test_traversal_traverse_string(self):
             '`...` should result in string (same value) if `traverse_string`'
         assert traverse_obj(_TRAVERSE_STRING_DATA, ('str', slice(0, None, 2)), traverse_string=True) == 'sr', \
             '`slice` should result in string if `traverse_string`'
-        assert traverse_obj(_TRAVERSE_STRING_DATA, ('str', lambda i, v: i or v == "s"), traverse_string=True) == 'str', \
+        assert traverse_obj(_TRAVERSE_STRING_DATA, ('str', lambda i, v: i or v == 's'), traverse_string=True) == 'str', \
             'function should result in string if `traverse_string`'
         assert traverse_obj(_TRAVERSE_STRING_DATA, ('str', (0, 2)), traverse_string=True) == ['s', 'r'], \
             'branching should result in list if `traverse_string`'

test/test_update.py

@@ -78,11 +78,11 @@
 
 TEST_LOCKFILE_COMMENT = '# This file is used for regulating self-update'
 
-TEST_LOCKFILE_V1 = r'''%s
+TEST_LOCKFILE_V1 = rf'''{TEST_LOCKFILE_COMMENT}
 lock 2022.08.18.36 .+ Python 3\.6
 lock 2023.11.16 (?!win_x86_exe).+ Python 3\.7
 lock 2023.11.16 win_x86_exe .+ Windows-(?:Vista|2008Server)
-''' % TEST_LOCKFILE_COMMENT
+'''
 
 TEST_LOCKFILE_V2_TMPL = r'''%s
 lockV2 yt-dlp/yt-dlp 2022.08.18.36 .+ Python 3\.6
@@ -98,12 +98,12 @@
 
 TEST_LOCKFILE_ACTUAL = TEST_LOCKFILE_V2_TMPL % TEST_LOCKFILE_V1.rstrip('\n')
 
-TEST_LOCKFILE_FORK = r'''%s# Test if a fork blocks updates to non-numeric tags
+TEST_LOCKFILE_FORK = rf'''{TEST_LOCKFILE_ACTUAL}# Test if a fork blocks updates to non-numeric tags
 lockV2 fork/yt-dlp pr0000 .+ Python 3.6
 lockV2 fork/yt-dlp pr1234 (?!win_x86_exe).+ Python 3\.7
 lockV2 fork/yt-dlp pr1234 win_x86_exe .+ Windows-(?:Vista|2008Server)
 lockV2 fork/yt-dlp pr9999 .+ Python 3.11
-''' % TEST_LOCKFILE_ACTUAL
+'''
 
 
 class FakeUpdater(Updater):

test/test_utils.py

@@ -5,6 +5,7 @@
 import sys
 import unittest
 import warnings
+import datetime as dt
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
@@ -27,6 +28,7 @@
     ExtractorError,
     InAdvancePagedList,
     LazyList,
+    NO_DEFAULT,
     OnDemandPagedList,
     Popen,
     age_restricted,
@@ -274,8 +276,8 @@ def env(var):
             self.assertEqual(expand_path(env('HOME')), os.getenv('HOME'))
             self.assertEqual(expand_path('~'), os.getenv('HOME'))
             self.assertEqual(
-                expand_path('~/%s' % env('yt_dlp_EXPATH_PATH')),
+                expand_path('~/{}'.format(env('yt_dlp_EXPATH_PATH'))),
-                '%s/expanded' % os.getenv('HOME'))
+                '{}/expanded'.format(os.getenv('HOME')))
         finally:
             os.environ['HOME'] = old_home or ''
 
@@ -354,12 +356,12 @@ def test_datetime_from_str(self):
         self.assertEqual(datetime_from_str('now+23hours', precision='hour'), datetime_from_str('now+23hours', precision='auto'))
 
     def test_daterange(self):
-        _20century = DateRange("19000101", "20000101")
+        _20century = DateRange('19000101', '20000101')
-        self.assertFalse("17890714" in _20century)
+        self.assertFalse('17890714' in _20century)
-        _ac = DateRange("00010101")
+        _ac = DateRange('00010101')
-        self.assertTrue("19690721" in _ac)
+        self.assertTrue('19690721' in _ac)
-        _firstmilenium = DateRange(end="10000101")
+        _firstmilenium = DateRange(end='10000101')
-        self.assertTrue("07110427" in _firstmilenium)
+        self.assertTrue('07110427' in _firstmilenium)
 
     def test_unified_dates(self):
         self.assertEqual(unified_strdate('December 21, 2010'), '20101221')
@@ -504,7 +506,7 @@ def test_xpath_attr(self):
         self.assertRaises(ExtractorError, xpath_attr, doc, 'div/p', 'y', fatal=True)
 
     def test_smuggle_url(self):
-        data = {"ö": "ö", "abc": [3]}
+        data = {'ö': 'ö', 'abc': [3]}
         url = 'https://foo.bar/baz?x=y#a'
         smug_url = smuggle_url(url, data)
         unsmug_url, unsmug_data = unsmuggle_url(smug_url)
@@ -768,6 +770,11 @@ def test_encode_compat_str(self):
 
     def test_parse_iso8601(self):
         self.assertEqual(parse_iso8601('2014-03-23T23:04:26+0100'), 1395612266)
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26-07:00'), 1395641066)
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26', timezone=dt.timedelta(hours=-7)), 1395641066)
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26', timezone=NO_DEFAULT), None)
+        # default does not override timezone in date_str
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26-07:00', timezone=dt.timedelta(hours=-10)), 1395641066)
         self.assertEqual(parse_iso8601('2014-03-23T22:04:26+0000'), 1395612266)
         self.assertEqual(parse_iso8601('2014-03-23T22:04:26Z'), 1395612266)
         self.assertEqual(parse_iso8601('2014-03-23T22:04:26.1234Z'), 1395612266)
@@ -777,7 +784,7 @@ def test_parse_iso8601(self):
     def test_strip_jsonp(self):
         stripped = strip_jsonp('cb ([ {"id":"532cb",\n\n\n"x":\n3}\n]\n);')
         d = json.loads(stripped)
-        self.assertEqual(d, [{"id": "532cb", "x": 3}])
+        self.assertEqual(d, [{'id': '532cb', 'x': 3}])
 
         stripped = strip_jsonp('parseMetadata({"STATUS":"OK"})\n\n\n//epc')
         d = json.loads(stripped)
@@ -915,19 +922,19 @@ def test_escape_rfc3986(self):
     def test_normalize_url(self):
         self.assertEqual(
             normalize_url('http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavré_FD.mp4'),
-            'http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavre%CC%81_FD.mp4'
+            'http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavre%CC%81_FD.mp4',
         )
         self.assertEqual(
             normalize_url('http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erklärt/Das-Erste/Video?documentId=22673108&bcastId=5290'),
-            'http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erkl%C3%A4rt/Das-Erste/Video?documentId=22673108&bcastId=5290'
+            'http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erkl%C3%A4rt/Das-Erste/Video?documentId=22673108&bcastId=5290',
         )
         self.assertEqual(
             normalize_url('http://тест.рф/фрагмент'),
-            'http://xn--e1aybc.xn--p1ai/%D1%84%D1%80%D0%B0%D0%B3%D0%BC%D0%B5%D0%BD%D1%82'
+            'http://xn--e1aybc.xn--p1ai/%D1%84%D1%80%D0%B0%D0%B3%D0%BC%D0%B5%D0%BD%D1%82',
         )
         self.assertEqual(
             normalize_url('http://тест.рф/абв?абв=абв#абв'),
-            'http://xn--e1aybc.xn--p1ai/%D0%B0%D0%B1%D0%B2?%D0%B0%D0%B1%D0%B2=%D0%B0%D0%B1%D0%B2#%D0%B0%D0%B1%D0%B2'
+            'http://xn--e1aybc.xn--p1ai/%D0%B0%D0%B1%D0%B2?%D0%B0%D0%B1%D0%B2=%D0%B0%D0%B1%D0%B2#%D0%B0%D0%B1%D0%B2',
         )
         self.assertEqual(normalize_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
 
@@ -972,7 +979,7 @@ def test_js_to_json_vars_strings(self):
                     'e': 'false',
                     'f': '"false"',
                     'g': 'var',
-                }
+                },
             )),
             {
                 'null': None,
@@ -981,8 +988,8 @@ def test_js_to_json_vars_strings(self):
                 'trueStr': 'true',
                 'false': False,
                 'falseStr': 'false',
-                'unresolvedVar': 'var'
+                'unresolvedVar': 'var',
-            }
+            },
         )
 
         self.assertDictEqual(
@@ -998,14 +1005,14 @@ def test_js_to_json_vars_strings(self):
                     'b': '"123"',
                     'c': '1.23',
                     'd': '"1.23"',
-                }
+                },
             )),
             {
                 'int': 123,
                 'intStr': '123',
                 'float': 1.23,
                 'floatStr': '1.23',
-            }
+            },
         )
 
         self.assertDictEqual(
@@ -1021,14 +1028,14 @@ def test_js_to_json_vars_strings(self):
                     'b': '"{}"',
                     'c': '[]',
                     'd': '"[]"',
-                }
+                },
             )),
             {
                 'object': {},
                 'objectStr': '{}',
                 'array': [],
                 'arrayStr': '[]',
-            }
+            },
         )
 
     def test_js_to_json_realworld(self):
@@ -1074,7 +1081,7 @@ def test_js_to_json_realworld(self):
 
     def test_js_to_json_edgecases(self):
         on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}")
-        self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"})
+        self.assertEqual(json.loads(on), {'abc_def': "1'\\2\\'3\"4"})
 
         on = js_to_json('{"abc": true}')
         self.assertEqual(json.loads(on), {'abc': True})
@@ -1106,9 +1113,9 @@ def test_js_to_json_edgecases(self):
             'c': 0,
             'd': 42.42,
             'e': [],
-            'f': "abc",
+            'f': 'abc',
-            'g': "",
+            'g': '',
-            '42': 42
+            '42': 42,
         })
 
         on = js_to_json('["abc", "def",]')
@@ -1202,8 +1209,8 @@ def test_js_to_json_common_constructors(self):
         self.assertEqual(json.loads(js_to_json('Array(5, 10)')), [5, 10])
         self.assertEqual(json.loads(js_to_json('new Array(15,5)')), [15, 5])
         self.assertEqual(json.loads(js_to_json('new Map([Array(5, 10),new Array(15,5)])')), {'5': 10, '15': 5})
-        self.assertEqual(json.loads(js_to_json('new Date("123")')), "123")
+        self.assertEqual(json.loads(js_to_json('new Date("123")')), '123')
-        self.assertEqual(json.loads(js_to_json('new Date(\'2023-10-19\')')), "2023-10-19")
+        self.assertEqual(json.loads(js_to_json('new Date(\'2023-10-19\')')), '2023-10-19')
 
     def test_extract_attributes(self):
         self.assertEqual(extract_attributes('<e x="y">'), {'x': 'y'})
@@ -1258,7 +1265,7 @@ def test_intlist_to_bytes(self):
     def test_args_to_str(self):
         self.assertEqual(
             args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),
-            'foo ba/r -baz \'2 be\' \'\'' if compat_os_name != 'nt' else 'foo ba/r -baz "2 be" ""'
+            'foo ba/r -baz \'2 be\' \'\'' if compat_os_name != 'nt' else 'foo ba/r -baz "2 be" ""',
         )
 
     def test_parse_filesize(self):
@@ -1341,10 +1348,10 @@ def test_is_html(self):
         self.assertTrue(is_html(  # UTF-8 with BOM
             b'\xef\xbb\xbf<!DOCTYPE foo>\xaaa'))
         self.assertTrue(is_html(  # UTF-16-LE
-            b'\xff\xfe<\x00h\x00t\x00m\x00l\x00>\x00\xe4\x00'
+            b'\xff\xfe<\x00h\x00t\x00m\x00l\x00>\x00\xe4\x00',
         ))
         self.assertTrue(is_html(  # UTF-16-BE
-            b'\xfe\xff\x00<\x00h\x00t\x00m\x00l\x00>\x00\xe4'
+            b'\xfe\xff\x00<\x00h\x00t\x00m\x00l\x00>\x00\xe4',
         ))
         self.assertTrue(is_html(  # UTF-32-BE
             b'\x00\x00\xFE\xFF\x00\x00\x00<\x00\x00\x00h\x00\x00\x00t\x00\x00\x00m\x00\x00\x00l\x00\x00\x00>\x00\x00\x00\xe4'))
@@ -1928,7 +1935,7 @@ def test_locked_file(self):
                             with locked_file(FILE, test_mode, False):
                                 pass
                         except (BlockingIOError, PermissionError):
-                            if not testing_write:  # FIXME
+                            if not testing_write:  # FIXME: blocked read access
                                 print(f'Known issue: Exclusive lock ({lock_mode}) blocks read access ({test_mode})')
                                 continue
                             self.assertTrue(testing_write, f'{test_mode} is blocked by {lock_mode}')
@@ -1996,7 +2003,7 @@ def total(*x, **kwargs):
                          msg='int fn with expected_type int should give int')
         self.assertEqual(try_call(lambda: 1, expected_type=dict), None,
                          msg='int fn with wrong expected_type should give None')
-        self.assertEqual(try_call(total, args=(0, 1, 0, ), expected_type=int), 1,
+        self.assertEqual(try_call(total, args=(0, 1, 0), expected_type=int), 1,
                          msg='fn should accept arglist')
         self.assertEqual(try_call(total, kwargs={'a': 0, 'b': 1, 'c': 0}, expected_type=int), 1,
                          msg='fn should accept kwargs')

test/test_websockets.py

@@ -3,10 +3,12 @@
 # Allow direct execution
 import os
 import sys
+import time
 
 import pytest
 
 from test.helper import verify_address_availability
+from yt_dlp.networking.common import Features, DEFAULT_TIMEOUT
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
@@ -18,7 +20,7 @@
 import ssl
 import threading
 
-from yt_dlp import socks
+from yt_dlp import socks, traverse_obj
 from yt_dlp.cookies import YoutubeDLCookieJar
 from yt_dlp.dependencies import websockets
 from yt_dlp.networking import Request
@@ -114,6 +116,7 @@ def ws_validate_and_send(rh, req):
 
 
 @pytest.mark.skipif(not websockets, reason='websockets must be installed to test websocket request handlers')
+@pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
 class TestWebsSocketRequestHandlerConformance:
     @classmethod
     def setup_class(cls):
@@ -129,7 +132,6 @@ def setup_class(cls):
         cls.mtls_wss_thread, cls.mtls_wss_port = create_mtls_wss_websocket_server()
         cls.mtls_wss_base_url = f'wss://127.0.0.1:{cls.mtls_wss_port}'
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_basic_websockets(self, handler):
         with handler() as rh:
             ws = ws_validate_and_send(rh, Request(self.ws_base_url))
@@ -141,7 +143,6 @@ def test_basic_websockets(self, handler):
 
     # https://www.rfc-editor.org/rfc/rfc6455.html#section-5.6
     @pytest.mark.parametrize('msg,opcode', [('str', 1), (b'bytes', 2)])
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_send_types(self, handler, msg, opcode):
         with handler() as rh:
             ws = ws_validate_and_send(rh, Request(self.ws_base_url))
@@ -149,7 +150,6 @@ def test_send_types(self, handler, msg, opcode):
             assert int(ws.recv()) == opcode
             ws.close()
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_verify_cert(self, handler):
         with handler() as rh:
             with pytest.raises(CertificateVerifyError):
@@ -160,14 +160,12 @@ def test_verify_cert(self, handler):
             assert ws.status == 101
             ws.close()
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_ssl_error(self, handler):
         with handler(verify=False) as rh:
             with pytest.raises(SSLError, match=r'ssl(?:v3|/tls) alert handshake failure') as exc_info:
                 ws_validate_and_send(rh, Request(self.bad_wss_host))
             assert not issubclass(exc_info.type, CertificateVerifyError)
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     @pytest.mark.parametrize('path,expected', [
         # Unicode characters should be encoded with uppercase percent-encoding
         ('/中文', '/%E4%B8%AD%E6%96%87'),
@@ -182,7 +180,6 @@ def test_percent_encode(self, handler, path, expected):
             assert ws.status == 101
             ws.close()
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_remove_dot_segments(self, handler):
         with handler() as rh:
             # This isn't a comprehensive test,
@@ -195,7 +192,6 @@ def test_remove_dot_segments(self, handler):
 
     # We are restricted to known HTTP status codes in http.HTTPStatus
     # Redirects are not supported for websockets
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     @pytest.mark.parametrize('status', (200, 204, 301, 302, 303, 400, 500, 511))
     def test_raise_http_error(self, handler, status):
         with handler() as rh:
@@ -203,17 +199,30 @@ def test_raise_http_error(self, handler, status):
                 ws_validate_and_send(rh, Request(f'{self.ws_base_url}/gen_{status}'))
             assert exc_info.value.status == status
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     @pytest.mark.parametrize('params,extensions', [
         ({'timeout': sys.float_info.min}, {}),
         ({}, {'timeout': sys.float_info.min}),
     ])
-    def test_timeout(self, handler, params, extensions):
+    def test_read_timeout(self, handler, params, extensions):
         with handler(**params) as rh:
             with pytest.raises(TransportError):
                 ws_validate_and_send(rh, Request(self.ws_base_url, extensions=extensions))
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
+    def test_connect_timeout(self, handler):
+        # nothing should be listening on this port
+        connect_timeout_url = 'ws://10.255.255.255'
+        with handler(timeout=0.01) as rh, pytest.raises(TransportError):
+            now = time.time()
+            ws_validate_and_send(rh, Request(connect_timeout_url))
+        assert time.time() - now < DEFAULT_TIMEOUT
+
+        # Per request timeout, should override handler timeout
+        request = Request(connect_timeout_url, extensions={'timeout': 0.01})
+        with handler() as rh, pytest.raises(TransportError):
+            now = time.time()
+            ws_validate_and_send(rh, request)
+        assert time.time() - now < DEFAULT_TIMEOUT
+
     def test_cookies(self, handler):
         cookiejar = YoutubeDLCookieJar()
         cookiejar.set_cookie(http.cookiejar.Cookie(
@@ -239,7 +248,6 @@ def test_cookies(self, handler):
             assert json.loads(ws.recv())['cookie'] == 'test=ytdlp'
             ws.close()
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_source_address(self, handler):
         source_address = f'127.0.0.{random.randint(5, 255)}'
         verify_address_availability(source_address)
@@ -249,7 +257,6 @@ def test_source_address(self, handler):
             assert source_address == ws.recv()
             ws.close()
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_response_url(self, handler):
         with handler() as rh:
             url = f'{self.ws_base_url}/something'
@@ -257,7 +264,6 @@ def test_response_url(self, handler):
             assert ws.url == url
             ws.close()
 
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_request_headers(self, handler):
         with handler(headers=HTTPHeaderDict({'test1': 'test', 'test2': 'test2'})) as rh:
             # Global Headers
@@ -291,18 +297,55 @@ def test_request_headers(self, handler):
             'client_certificate': os.path.join(MTLS_CERT_DIR, 'client.crt'),
             'client_certificate_key': os.path.join(MTLS_CERT_DIR, 'clientencrypted.key'),
             'client_certificate_password': 'foobar',
-        }
+        },
     ))
-    @pytest.mark.parametrize('handler', ['Websockets'], indirect=True)
     def test_mtls(self, handler, client_cert):
         with handler(
             # Disable client-side validation of unacceptable self-signed testcert.pem
             # The test is of a check on the server side, so unaffected
             verify=False,
-            client_cert=client_cert
+            client_cert=client_cert,
         ) as rh:
             ws_validate_and_send(rh, Request(self.mtls_wss_base_url)).close()
 
+    def test_request_disable_proxy(self, handler):
+        for proxy_proto in handler._SUPPORTED_PROXY_SCHEMES or ['ws']:
+            # Given handler is configured with a proxy
+            with handler(proxies={'ws': f'{proxy_proto}://10.255.255.255'}, timeout=5) as rh:
+                # When a proxy is explicitly set to None for the request
+                ws = ws_validate_and_send(rh, Request(self.ws_base_url, proxies={'http': None}))
+                # Then no proxy should be used
+                assert ws.status == 101
+                ws.close()
+
+    @pytest.mark.skip_handlers_if(
+        lambda _, handler: Features.NO_PROXY not in handler._SUPPORTED_FEATURES, 'handler does not support NO_PROXY')
+    def test_noproxy(self, handler):
+        for proxy_proto in handler._SUPPORTED_PROXY_SCHEMES or ['ws']:
+            # Given the handler is configured with a proxy
+            with handler(proxies={'ws': f'{proxy_proto}://10.255.255.255'}, timeout=5) as rh:
+                for no_proxy in (f'127.0.0.1:{self.ws_port}', '127.0.0.1', 'localhost'):
+                    # When request no proxy includes the request url host
+                    ws = ws_validate_and_send(rh, Request(self.ws_base_url, proxies={'no': no_proxy}))
+                    # Then the proxy should not be used
+                    assert ws.status == 101
+                    ws.close()
+
+    @pytest.mark.skip_handlers_if(
+        lambda _, handler: Features.ALL_PROXY not in handler._SUPPORTED_FEATURES, 'handler does not support ALL_PROXY')
+    def test_allproxy(self, handler):
+        supported_proto = traverse_obj(handler._SUPPORTED_PROXY_SCHEMES, 0, default='ws')
+        # This is a bit of a hacky test, but it should be enough to check whether the handler is using the proxy.
+        # 0.1s might not be enough of a timeout if proxy is not used in all cases, but should still get failures.
+        with handler(proxies={'all': f'{supported_proto}://10.255.255.255'}, timeout=0.1) as rh:
+            with pytest.raises(TransportError):
+                ws_validate_and_send(rh, Request(self.ws_base_url)).close()
+
+        with handler(timeout=0.1) as rh:
+            with pytest.raises(TransportError):
+                ws_validate_and_send(
+                    rh, Request(self.ws_base_url, proxies={'all': f'{supported_proto}://10.255.255.255'})).close()
+
 
 def create_fake_ws_connection(raised):
     import websockets.sync.client

test/test_youtube_misc.py

@@ -13,7 +13,7 @@
 
 class TestYoutubeMisc(unittest.TestCase):
     def test_youtube_extract(self):
-        assertExtractId = lambda url, id: self.assertEqual(YoutubeIE.extract_id(url), id)
+        assertExtractId = lambda url, video_id: self.assertEqual(YoutubeIE.extract_id(url), video_id)
         assertExtractId('http://www.youtube.com/watch?&v=BaW_jenozKc', 'BaW_jenozKc')
         assertExtractId('https://www.youtube.com/watch?&v=BaW_jenozKc', 'BaW_jenozKc')
         assertExtractId('https://www.youtube.com/watch?feature=player_embedded&v=BaW_jenozKc', 'BaW_jenozKc')

test/test_youtube_signature.py

@@ -46,17 +46,17 @@
     (
         'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflBb0OQx.js',
         84,
-        '123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQ0STUVWXYZ!"#$%&\'()*+,@./:;<=>'
+        '123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQ0STUVWXYZ!"#$%&\'()*+,@./:;<=>',
     ),
     (
         'https://s.ytimg.com/yts/jsbin/html5player-en_US-vfl9FYC6l.js',
         83,
-        '123456789abcdefghijklmnopqr0tuvwxyzABCDETGHIJKLMNOPQRS>UVWXYZ!"#$%&\'()*+,-./:;<=F'
+        '123456789abcdefghijklmnopqr0tuvwxyzABCDETGHIJKLMNOPQRS>UVWXYZ!"#$%&\'()*+,-./:;<=F',
     ),
     (
         'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflCGk6yw/html5player.js',
         '4646B5181C6C3020DF1D9C7FCFEA.AD80ABF70C39BD369CCCAE780AFBB98FA6B6CB42766249D9488C288',
-        '82C8849D94266724DC6B6AF89BBFA087EACCD963.B93C07FBA084ACAEFCF7C9D1FD0203C6C1815B6B'
+        '82C8849D94266724DC6B6AF89BBFA087EACCD963.B93C07FBA084ACAEFCF7C9D1FD0203C6C1815B6B',
     ),
     (
         'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js',
@@ -207,7 +207,7 @@ def tearDown(self):
 def t_factory(name, sig_func, url_pattern):
     def make_tfunc(url, sig_input, expected_sig):
         m = url_pattern.match(url)
-        assert m, '%r should follow URL format' % url
+        assert m, f'{url!r} should follow URL format'
         test_id = m.group('id')
 
         def test_func(self):

yt_dlp/YoutubeDL.py

@@ -109,7 +109,6 @@
     determine_protocol,
     encode_compat_str,
     encodeFilename,
-    error_to_compat_str,
     escapeHTML,
     expand_path,
     extract_basic_auth,
@@ -583,7 +582,7 @@ class YoutubeDL:
         'player_url', 'protocol', 'fragment_base_url', 'fragments', 'is_from_start', 'is_dash_periods', 'request_data',
         'preference', 'language', 'language_preference', 'quality', 'source_preference', 'cookies',
         'http_headers', 'stretched_ratio', 'no_resume', 'has_drm', 'extra_param_to_segment_url', 'hls_aes', 'downloader_options',
-        'page_url', 'app', 'play_path', 'tc_url', 'flash_version', 'rtmp_live', 'rtmp_conn', 'rtmp_protocol', 'rtmp_real_time'
+        'page_url', 'app', 'play_path', 'tc_url', 'flash_version', 'rtmp_live', 'rtmp_conn', 'rtmp_protocol', 'rtmp_real_time',
     }
     _deprecated_multivalue_fields = {
         'album_artist': 'album_artists',
@@ -594,7 +593,7 @@ class YoutubeDL:
     }
     _format_selection_exts = {
         'audio': set(MEDIA_EXTENSIONS.common_audio),
-        'video': set(MEDIA_EXTENSIONS.common_video + ('3gp', )),
+        'video': {*MEDIA_EXTENSIONS.common_video, '3gp'},
         'storyboards': set(MEDIA_EXTENSIONS.storyboards),
     }
 
@@ -628,7 +627,7 @@ def __init__(self, params=None, auto_init=True):
             error=sys.stderr,
             screen=sys.stderr if self.params.get('quiet') else stdout,
             console=None if compat_os_name == 'nt' else next(
-                filter(supports_terminal_sequences, (sys.stderr, sys.stdout)), None)
+                filter(supports_terminal_sequences, (sys.stderr, sys.stdout)), None),
         )
 
         try:
@@ -679,9 +678,9 @@ def process_color_policy(stream):
                 width_args = [] if width is None else ['-w', str(width)]
                 sp_kwargs = {'stdin': subprocess.PIPE, 'stdout': slave, 'stderr': self._out_files.error}
                 try:
-                    self._output_process = Popen(['bidiv'] + width_args, **sp_kwargs)
+                    self._output_process = Popen(['bidiv', *width_args], **sp_kwargs)
                 except OSError:
-                    self._output_process = Popen(['fribidi', '-c', 'UTF-8'] + width_args, **sp_kwargs)
+                    self._output_process = Popen(['fribidi', '-c', 'UTF-8', *width_args], **sp_kwargs)
                 self._output_channel = os.fdopen(master, 'rb')
             except OSError as ose:
                 if ose.errno == errno.ENOENT:
@@ -822,8 +821,7 @@ def warn_if_short_id(self, argv):
             )
             self.report_warning(
                 'Long argument string detected. '
-                'Use -- to separate parameters and URLs, like this:\n%s' %
+                f'Use -- to separate parameters and URLs, like this:\n{shell_quote(correct_argv)}')
-                shell_quote(correct_argv))
 
     def add_info_extractor(self, ie):
         """Add an InfoExtractor object to the end of the list."""
@@ -922,7 +920,7 @@ def to_screen(self, message, skip_eol=False, quiet=None, only_once=False):
         if (self.params.get('quiet') if quiet is None else quiet) and not self.params.get('verbose'):
             return
         self._write_string(
-            '%s%s' % (self._bidi_workaround(message), ('' if skip_eol else '\n')),
+            '{}{}'.format(self._bidi_workaround(message), ('' if skip_eol else '\n')),
             self._out_files.screen, only_once=only_once)
 
     def to_stderr(self, message, only_once=False):
@@ -1045,10 +1043,10 @@ def _format_err(self, *args, **kwargs):
         return self._format_text(self._out_files.error, self._allow_colors.error, *args, **kwargs)
 
     def report_warning(self, message, only_once=False):
-        '''
+        """
         Print the message to stderr, it will be prefixed with 'WARNING:'
         If stderr is a tty file the 'WARNING:' will be colored
-        '''
+        """
         if self.params.get('logger') is not None:
             self.params['logger'].warning(message)
         else:
@@ -1066,14 +1064,14 @@ def deprecated_feature(self, message):
         self.to_stderr(f'{self._format_err("Deprecated Feature:", self.Styles.ERROR)} {message}', True)
 
     def report_error(self, message, *args, **kwargs):
-        '''
+        """
         Do the same as trouble, but prefixes the message with 'ERROR:', colored
         in red if stderr is a tty file.
-        '''
+        """
         self.trouble(f'{self._format_err("ERROR:", self.Styles.ERROR)} {message}', *args, **kwargs)
 
     def write_debug(self, message, only_once=False):
-        '''Log debug message or Print message to stderr'''
+        """Log debug message or Print message to stderr"""
         if not self.params.get('verbose', False):
             return
         message = f'[debug] {message}'
@@ -1085,14 +1083,14 @@ def write_debug(self, message, only_once=False):
     def report_file_already_downloaded(self, file_name):
         """Report file has already been fully downloaded."""
         try:
-            self.to_screen('[download] %s has already been downloaded' % file_name)
+            self.to_screen(f'[download] {file_name} has already been downloaded')
         except UnicodeEncodeError:
             self.to_screen('[download] The file has already been downloaded')
 
     def report_file_delete(self, file_name):
         """Report that existing file will be deleted."""
         try:
-            self.to_screen('Deleting existing file %s' % file_name)
+            self.to_screen(f'Deleting existing file {file_name}')
         except UnicodeEncodeError:
             self.to_screen('Deleting existing file')
 
@@ -1147,7 +1145,7 @@ def _outtmpl_expandpath(outtmpl):
 
     @staticmethod
     def escape_outtmpl(outtmpl):
-        ''' Escape any remaining strings like %s, %abc% etc. '''
+        """ Escape any remaining strings like %s, %abc% etc. """
         return re.sub(
             STR_FORMAT_RE_TMPL.format('', '(?![%(\0])'),
             lambda mobj: ('' if mobj.group('has_key') else '%') + mobj.group(0),
@@ -1155,7 +1153,7 @@ def escape_outtmpl(outtmpl):
 
     @classmethod
     def validate_outtmpl(cls, outtmpl):
-        ''' @return None or Exception object '''
+        """ @return None or Exception object """
         outtmpl = re.sub(
             STR_FORMAT_RE_TMPL.format('[^)]*', '[ljhqBUDS]'),
             lambda mobj: f'{mobj.group(0)[:-1]}s',
@@ -1208,13 +1206,13 @@ def prepare_outtmpl(self, outtmpl, info_dict, sanitize=False):
         }
         # Field is of the form key1.key2...
         # where keys (except first) can be string, int, slice or "{field, ...}"
-        FIELD_INNER_RE = r'(?:\w+|%(num)s|%(num)s?(?::%(num)s?){1,2})' % {'num': r'(?:-?\d+)'}
+        FIELD_INNER_RE = r'(?:\w+|%(num)s|%(num)s?(?::%(num)s?){1,2})' % {'num': r'(?:-?\d+)'}  # noqa: UP031
-        FIELD_RE = r'\w*(?:\.(?:%(inner)s|{%(field)s(?:,%(field)s)*}))*' % {
+        FIELD_RE = r'\w*(?:\.(?:%(inner)s|{%(field)s(?:,%(field)s)*}))*' % {  # noqa: UP031
             'inner': FIELD_INNER_RE,
-            'field': rf'\w*(?:\.{FIELD_INNER_RE})*'
+            'field': rf'\w*(?:\.{FIELD_INNER_RE})*',
         }
         MATH_FIELD_RE = rf'(?:{FIELD_RE}|-?{NUMBER_RE})'
-        MATH_OPERATORS_RE = r'(?:%s)' % '|'.join(map(re.escape, MATH_FUNCTIONS.keys()))
+        MATH_OPERATORS_RE = r'(?:{})'.format('|'.join(map(re.escape, MATH_FUNCTIONS.keys())))
         INTERNAL_FORMAT_RE = re.compile(rf'''(?xs)
             (?P<negate>-)?
             (?P<fields>{FIELD_RE})
@@ -1337,7 +1335,7 @@ def create_key(outer_mobj):
                     value, default = None, na
 
             fmt = outer_mobj.group('format')
-            if fmt == 's' and last_field in field_size_compat_map.keys() and isinstance(value, int):
+            if fmt == 's' and last_field in field_size_compat_map and isinstance(value, int):
                 fmt = f'0{field_size_compat_map[last_field]:d}d'
 
             flags = outer_mobj.group('conversion') or ''
@@ -1362,7 +1360,7 @@ def create_key(outer_mobj):
             elif fmt[-1] == 'U':  # unicode normalized
                 value, fmt = unicodedata.normalize(
                     # "+" = compatibility equivalence, "#" = NFD
-                    'NF%s%s' % ('K' if '+' in flags else '', 'D' if '#' in flags else 'C'),
+                    'NF{}{}'.format('K' if '+' in flags else '', 'D' if '#' in flags else 'C'),
                     value), str_fmt
             elif fmt[-1] == 'D':  # decimal suffix
                 num_fmt, fmt = fmt[:-1].replace('#', ''), 's'
@@ -1390,7 +1388,7 @@ def create_key(outer_mobj):
                 if fmt[-1] in 'csra':
                     value = sanitizer(last_field, value)
 
-            key = '%s\0%s' % (key.replace('%', '%\0'), outer_mobj.group('format'))
+            key = '{}\0{}'.format(key.replace('%', '%\0'), outer_mobj.group('format'))
             TMPL_DICT[key] = value
             return '{prefix}%({key}){fmt}'.format(key=key, fmt=fmt, prefix=outer_mobj.group('prefix'))
 
@@ -1479,9 +1477,9 @@ def check_filter():
 
             date = info_dict.get('upload_date')
             if date is not None:
-                dateRange = self.params.get('daterange', DateRange())
+                date_range = self.params.get('daterange', DateRange())
-                if date not in dateRange:
+                if date not in date_range:
-                    return f'{date_from_str(date).isoformat()} upload date is not in range {dateRange}'
+                    return f'{date_from_str(date).isoformat()} upload date is not in range {date_range}'
             view_count = info_dict.get('view_count')
             if view_count is not None:
                 min_views = self.params.get('min_views')
@@ -1491,7 +1489,7 @@ def check_filter():
                 if max_views is not None and view_count > max_views:
                     return 'Skipping %s, because it has exceeded the maximum view count (%d/%d)' % (video_title, view_count, max_views)
             if age_restricted(info_dict.get('age_limit'), self.params.get('age_limit')):
-                return 'Skipping "%s" because it is age restricted' % video_title
+                return f'Skipping "{video_title}" because it is age restricted'
 
             match_filter = self.params.get('match_filter')
             if match_filter is None:
@@ -1544,7 +1542,7 @@ def check_filter():
 
     @staticmethod
     def add_extra_info(info_dict, extra_info):
-        '''Set the keys from extra_info in info dict if they are missing'''
+        """Set the keys from extra_info in info dict if they are missing"""
         for key, value in extra_info.items():
             info_dict.setdefault(key, value)
 
@@ -1590,7 +1588,7 @@ def extract_info(self, url, download=True, ie_key=None, extra_info=None,
                 self.to_screen(f'[download] {self._format_screen(temp_id, self.Styles.ID)}: '
                                'has already been recorded in the archive')
                 if self.params.get('break_on_existing', False):
-                    raise ExistingVideoReached()
+                    raise ExistingVideoReached
                 break
             return self.__extract_info(url, self.get_info_extractor(key), download, extra_info, process)
         else:
@@ -1616,8 +1614,8 @@ def wrapper(self, *args, **kwargs):
                 except GeoRestrictedError as e:
                     msg = e.msg
                     if e.countries:
-                        msg += '\nThis video is available in %s.' % ', '.join(
+                        msg += '\nThis video is available in {}.'.format(', '.join(
-                            map(ISO3166Utils.short2full, e.countries))
+                            map(ISO3166Utils.short2full, e.countries)))
                     msg += '\nYou might want to use a VPN or a proxy server (with --proxy) to workaround.'
                     self.report_error(msg)
                 except ExtractorError as e:  # An error we somewhat expected
@@ -1826,8 +1824,8 @@ def process_ie_result(self, ie_result, download=True, extra_info=None):
                 if isinstance(additional_urls, str):
                     additional_urls = [additional_urls]
                 self.to_screen(
-                    '[info] %s: %d additional URL(s) requested' % (ie_result['id'], len(additional_urls)))
+                    '[info] {}: {} additional URL(s) requested'.format(ie_result['id'], len(additional_urls)))
-                self.write_debug('Additional URLs: "%s"' % '", "'.join(additional_urls))
+                self.write_debug('Additional URLs: "{}"'.format('", "'.join(additional_urls)))
                 ie_result['additional_entries'] = [
                     self.extract_info(
                         url, download, extra_info=extra_info,
@@ -1879,8 +1877,8 @@ def process_ie_result(self, ie_result, download=True, extra_info=None):
             webpage_url = ie_result.get('webpage_url')  # Playlists maynot have webpage_url
             if webpage_url and webpage_url in self._playlist_urls:
                 self.to_screen(
-                    '[download] Skipping already downloaded playlist: %s'
+                    '[download] Skipping already downloaded playlist: {}'.format(
-                    % ie_result.get('title') or ie_result.get('id'))
+                        ie_result.get('title')) or ie_result.get('id'))
                 return
 
             self._playlist_level += 1
@@ -1895,8 +1893,8 @@ def process_ie_result(self, ie_result, download=True, extra_info=None):
                     self._playlist_urls.clear()
         elif result_type == 'compat_list':
             self.report_warning(
-                'Extractor %s returned a compat_list result. '
+                'Extractor {} returned a compat_list result. '
-                'It needs to be updated.' % ie_result.get('extractor'))
+                'It needs to be updated.'.format(ie_result.get('extractor')))
 
             def _fixup(r):
                 self.add_extra_info(r, {
@@ -1913,7 +1911,7 @@ def _fixup(r):
             ]
             return ie_result
         else:
-            raise Exception('Invalid result type: %s' % result_type)
+            raise Exception(f'Invalid result type: {result_type}')
 
     def _ensure_dir_exists(self, path):
         return make_dir(path, self.report_error)
@@ -2029,8 +2027,9 @@ def __process_playlist(self, ie_result, download):
                 resolved_entries[i] = (playlist_index, NO_DEFAULT)
                 continue
 
-            self.to_screen('[download] Downloading item %s of %s' % (
+            self.to_screen(
-                self._format_screen(i + 1, self.Styles.ID), self._format_screen(n_entries, self.Styles.EMPHASIS)))
+                f'[download] Downloading item {self._format_screen(i + 1, self.Styles.ID)} '
+                f'of {self._format_screen(n_entries, self.Styles.EMPHASIS)}')
 
             entry_result = self.__process_iterable_entry(entry, download, collections.ChainMap({
                 'playlist_index': playlist_index,
@@ -2080,9 +2079,9 @@ def _build_format_filter(self, filter_spec):
         }
         operator_rex = re.compile(r'''(?x)\s*
             (?P<key>[\w.-]+)\s*
-            (?P<op>%s)(?P<none_inclusive>\s*\?)?\s*
+            (?P<op>{})(?P<none_inclusive>\s*\?)?\s*
             (?P<value>[0-9.]+(?:[kKmMgGtTpPeEzZyY]i?[Bb]?)?)\s*
-            ''' % '|'.join(map(re.escape, OPERATORS.keys())))
+            '''.format('|'.join(map(re.escape, OPERATORS.keys()))))
         m = operator_rex.fullmatch(filter_spec)
         if m:
             try:
@@ -2093,7 +2092,7 @@ def _build_format_filter(self, filter_spec):
                     comparison_value = parse_filesize(m.group('value') + 'B')
                 if comparison_value is None:
                     raise ValueError(
-                        'Invalid value %r in format specification %r' % (
+                        'Invalid value {!r} in format specification {!r}'.format(
                             m.group('value'), filter_spec))
             op = OPERATORS[m.group('op')]
 
@@ -2103,15 +2102,15 @@ def _build_format_filter(self, filter_spec):
                 '^=': lambda attr, value: attr.startswith(value),
                 '$=': lambda attr, value: attr.endswith(value),
                 '*=': lambda attr, value: value in attr,
-                '~=': lambda attr, value: value.search(attr) is not None
+                '~=': lambda attr, value: value.search(attr) is not None,
             }
             str_operator_rex = re.compile(r'''(?x)\s*
                 (?P<key>[a-zA-Z0-9._-]+)\s*
-                (?P<negation>!\s*)?(?P<op>%s)\s*(?P<none_inclusive>\?\s*)?
+                (?P<negation>!\s*)?(?P<op>{})\s*(?P<none_inclusive>\?\s*)?
                 (?P<quote>["'])?
                 (?P<value>(?(quote)(?:(?!(?P=quote))[^\\]|\\.)+|[\w.-]+))
                 (?(quote)(?P=quote))\s*
-                ''' % '|'.join(map(re.escape, STR_OPERATORS.keys())))
+                '''.format('|'.join(map(re.escape, STR_OPERATORS.keys()))))
             m = str_operator_rex.fullmatch(filter_spec)
             if m:
                 if m.group('op') == '~=':
@@ -2125,7 +2124,7 @@ def _build_format_filter(self, filter_spec):
                     op = str_op
 
         if not m:
-            raise SyntaxError('Invalid filter specification %r' % filter_spec)
+            raise SyntaxError(f'Invalid filter specification {filter_spec!r}')
 
         def _filter(f):
             actual_value = f.get(m.group('key'))
@@ -2141,7 +2140,7 @@ def _check_formats(self, formats):
                 if working:
                     yield f
                 continue
-            self.to_screen('[info] Testing format %s' % f['format_id'])
+            self.to_screen('[info] Testing format {}'.format(f['format_id']))
             path = self.get_output_path('temp')
             if not self._ensure_dir_exists(f'{path}/'):
                 continue
@@ -2149,19 +2148,19 @@ def _check_formats(self, formats):
             temp_file.close()
             try:
                 success, _ = self.dl(temp_file.name, f, test=True)
-            except (DownloadError, OSError, ValueError) + network_exceptions:
+            except (DownloadError, OSError, ValueError, *network_exceptions):
                 success = False
             finally:
                 if os.path.exists(temp_file.name):
                     try:
                         os.remove(temp_file.name)
                     except OSError:
-                        self.report_warning('Unable to delete temporary file "%s"' % temp_file.name)
+                        self.report_warning(f'Unable to delete temporary file "{temp_file.name}"')
             f['__working'] = success
             if success:
                 yield f
             else:
-                self.to_screen('[info] Unable to download format %s. Skipping...' % f['format_id'])
+                self.to_screen('[info] Unable to download format {}. Skipping...'.format(f['format_id']))
 
     def _select_formats(self, formats, selector):
         return list(selector({
@@ -2214,8 +2213,8 @@ def syntax_error(note, start):
 
         def _parse_filter(tokens):
             filter_parts = []
-            for type, string_, start, _, _ in tokens:
+            for type_, string_, _start, _, _ in tokens:
-                if type == tokenize.OP and string_ == ']':
+                if type_ == tokenize.OP and string_ == ']':
                     return ''.join(filter_parts)
                 else:
                     filter_parts.append(string_)
@@ -2225,23 +2224,23 @@ def _remove_unused_ops(tokens):
             # E.g. 'mp4' '-' 'baseline' '-' '16x9' is converted to 'mp4-baseline-16x9'
             ALLOWED_OPS = ('/', '+', ',', '(', ')')
             last_string, last_start, last_end, last_line = None, None, None, None
-            for type, string_, start, end, line in tokens:
+            for type_, string_, start, end, line in tokens:
-                if type == tokenize.OP and string_ == '[':
+                if type_ == tokenize.OP and string_ == '[':
                     if last_string:
                         yield tokenize.NAME, last_string, last_start, last_end, last_line
                         last_string = None
-                    yield type, string_, start, end, line
+                    yield type_, string_, start, end, line
                     # everything inside brackets will be handled by _parse_filter
-                    for type, string_, start, end, line in tokens:
+                    for type_, string_, start, end, line in tokens:
-                        yield type, string_, start, end, line
+                        yield type_, string_, start, end, line
-                        if type == tokenize.OP and string_ == ']':
+                        if type_ == tokenize.OP and string_ == ']':
                             break
-                elif type == tokenize.OP and string_ in ALLOWED_OPS:
+                elif type_ == tokenize.OP and string_ in ALLOWED_OPS:
                     if last_string:
                         yield tokenize.NAME, last_string, last_start, last_end, last_line
                         last_string = None
-                    yield type, string_, start, end, line
+                    yield type_, string_, start, end, line
-                elif type in [tokenize.NAME, tokenize.NUMBER, tokenize.OP]:
+                elif type_ in [tokenize.NAME, tokenize.NUMBER, tokenize.OP]:
                     if not last_string:
                         last_string = string_
                         last_start = start
@@ -2254,13 +2253,13 @@ def _remove_unused_ops(tokens):
         def _parse_format_selection(tokens, inside_merge=False, inside_choice=False, inside_group=False):
             selectors = []
             current_selector = None
-            for type, string_, start, _, _ in tokens:
+            for type_, string_, start, _, _ in tokens:
                 # ENCODING is only defined in Python 3.x
-                if type == getattr(tokenize, 'ENCODING', None):
+                if type_ == getattr(tokenize, 'ENCODING', None):
                     continue
-                elif type in [tokenize.NAME, tokenize.NUMBER]:
+                elif type_ in [tokenize.NAME, tokenize.NUMBER]:
                     current_selector = FormatSelector(SINGLE, string_, [])
-                elif type == tokenize.OP:
+                elif type_ == tokenize.OP:
                     if string_ == ')':
                         if not inside_group:
                             # ')' will be handled by the parentheses group
@@ -2303,7 +2302,7 @@ def _parse_format_selection(tokens, inside_merge=False, inside_choice=False, ins
                         current_selector = FormatSelector(MERGE, (selector_1, selector_2), [])
                     else:
                         raise syntax_error(f'Operator not recognized: "{string_}"', start)
-                elif type == tokenize.ENDMARKER:
+                elif type_ == tokenize.ENDMARKER:
                     break
             if current_selector:
                 selectors.append(current_selector)
@@ -2378,7 +2377,7 @@ def _merge(formats_pair):
                     'acodec': the_only_audio.get('acodec'),
                     'abr': the_only_audio.get('abr'),
                     'asr': the_only_audio.get('asr'),
-                    'audio_channels': the_only_audio.get('audio_channels')
+                    'audio_channels': the_only_audio.get('audio_channels'),
                 })
 
             return new_dict
@@ -2459,9 +2458,9 @@ def selector_function(ctx):
 
                         format_fallback = not format_type and not format_modified  # for b, w
                         _filter_f = (
-                            (lambda f: f.get('%scodec' % format_type) != 'none')
+                            (lambda f: f.get(f'{format_type}codec') != 'none')
                             if format_type and format_modified  # bv*, ba*, wv*, wa*
-                            else (lambda f: f.get('%scodec' % not_format_type) == 'none')
+                            else (lambda f: f.get(f'{not_format_type}codec') == 'none')
                             if format_type  # bv, ba, wv, wa
                             else (lambda f: f.get('vcodec') != 'none' and f.get('acodec') != 'none')
                             if not format_modified  # b, w
@@ -2529,7 +2528,7 @@ def __iter__(self):
 
             def __next__(self):
                 if self.counter >= len(self.tokens):
-                    raise StopIteration()
+                    raise StopIteration
                 value = self.tokens[self.counter]
                 self.counter += 1
                 return value
@@ -2612,7 +2611,7 @@ def check_thumbnails(thumbnails):
         self._sort_thumbnails(thumbnails)
         for i, t in enumerate(thumbnails):
             if t.get('id') is None:
-                t['id'] = '%d' % i
+                t['id'] = str(i)
             if t.get('width') and t.get('height'):
                 t['resolution'] = '%dx%d' % (t['width'], t['height'])
             t['url'] = sanitize_url(t['url'])
@@ -2673,8 +2672,8 @@ def _fill_common_fields(self, info_dict, final=True):
         # Auto generate title fields corresponding to the *_number fields when missing
         # in order to always have clean titles. This is very common for TV series.
         for field in ('chapter', 'season', 'episode'):
-            if final and info_dict.get('%s_number' % field) is not None and not info_dict.get(field):
+            if final and info_dict.get(f'{field}_number') is not None and not info_dict.get(field):
-                info_dict[field] = '%s %d' % (field.capitalize(), info_dict['%s_number' % field])
+                info_dict[field] = '%s %d' % (field.capitalize(), info_dict[f'{field}_number'])
 
         for old_key, new_key in self._deprecated_multivalue_fields.items():
             if new_key in info_dict and old_key in info_dict:
@@ -2706,8 +2705,8 @@ def process_video_result(self, info_dict, download=True):
 
         def report_force_conversion(field, field_not, conversion):
             self.report_warning(
-                '"%s" field is not %s - forcing %s conversion, there is an error in extractor'
+                f'"{field}" field is not {field_not} - forcing {conversion} conversion, '
-                % (field, field_not, conversion))
+                'there is an error in extractor')
 
         def sanitize_string_field(info, string_field):
             field = info.get(string_field)
@@ -2824,28 +2823,28 @@ def is_wellformed(f):
         if not formats:
             self.raise_no_formats(info_dict)
 
-        for format in formats:
+        for fmt in formats:
-            sanitize_string_field(format, 'format_id')
+            sanitize_string_field(fmt, 'format_id')
-            sanitize_numeric_fields(format)
+            sanitize_numeric_fields(fmt)
-            format['url'] = sanitize_url(format['url'])
+            fmt['url'] = sanitize_url(fmt['url'])
-            if format.get('ext') is None:
+            if fmt.get('ext') is None:
-                format['ext'] = determine_ext(format['url']).lower()
+                fmt['ext'] = determine_ext(fmt['url']).lower()
-            if format['ext'] in ('aac', 'opus', 'mp3', 'flac', 'vorbis'):
+            if fmt['ext'] in ('aac', 'opus', 'mp3', 'flac', 'vorbis'):
-                if format.get('acodec') is None:
+                if fmt.get('acodec') is None:
-                    format['acodec'] = format['ext']
+                    fmt['acodec'] = fmt['ext']
-            if format.get('protocol') is None:
+            if fmt.get('protocol') is None:
-                format['protocol'] = determine_protocol(format)
+                fmt['protocol'] = determine_protocol(fmt)
-            if format.get('resolution') is None:
+            if fmt.get('resolution') is None:
-                format['resolution'] = self.format_resolution(format, default=None)
+                fmt['resolution'] = self.format_resolution(fmt, default=None)
-            if format.get('dynamic_range') is None and format.get('vcodec') != 'none':
+            if fmt.get('dynamic_range') is None and fmt.get('vcodec') != 'none':
-                format['dynamic_range'] = 'SDR'
+                fmt['dynamic_range'] = 'SDR'
-            if format.get('aspect_ratio') is None:
+            if fmt.get('aspect_ratio') is None:
-                format['aspect_ratio'] = try_call(lambda: round(format['width'] / format['height'], 2))
+                fmt['aspect_ratio'] = try_call(lambda: round(fmt['width'] / fmt['height'], 2))
             # For fragmented formats, "tbr" is often max bitrate and not average
-            if (('manifest-filesize-approx' in self.params['compat_opts'] or not format.get('manifest_url'))
+            if (('manifest-filesize-approx' in self.params['compat_opts'] or not fmt.get('manifest_url'))
-                    and not format.get('filesize') and not format.get('filesize_approx')):
+                    and not fmt.get('filesize') and not fmt.get('filesize_approx')):
-                format['filesize_approx'] = filesize_from_tbr(format.get('tbr'), info_dict.get('duration'))
+                fmt['filesize_approx'] = filesize_from_tbr(fmt.get('tbr'), info_dict.get('duration'))
-            format['http_headers'] = self._calc_headers(collections.ChainMap(format, info_dict), load_cookies=True)
+            fmt['http_headers'] = self._calc_headers(collections.ChainMap(fmt, info_dict), load_cookies=True)
 
         # Safeguard against old/insecure infojson when using --load-info-json
         if info_dict.get('http_headers'):
@@ -2858,36 +2857,36 @@ def is_wellformed(f):
 
         self.sort_formats({
             'formats': formats,
-            '_format_sort_fields': info_dict.get('_format_sort_fields')
+            '_format_sort_fields': info_dict.get('_format_sort_fields'),
         })
 
         # Sanitize and group by format_id
         formats_dict = {}
-        for i, format in enumerate(formats):
+        for i, fmt in enumerate(formats):
-            if not format.get('format_id'):
+            if not fmt.get('format_id'):
-                format['format_id'] = str(i)
+                fmt['format_id'] = str(i)
             else:
                 # Sanitize format_id from characters used in format selector expression
-                format['format_id'] = re.sub(r'[\s,/+\[\]()]', '_', format['format_id'])
+                fmt['format_id'] = re.sub(r'[\s,/+\[\]()]', '_', fmt['format_id'])
-            formats_dict.setdefault(format['format_id'], []).append(format)
+            formats_dict.setdefault(fmt['format_id'], []).append(fmt)
 
         # Make sure all formats have unique format_id
         common_exts = set(itertools.chain(*self._format_selection_exts.values()))
         for format_id, ambiguous_formats in formats_dict.items():
             ambigious_id = len(ambiguous_formats) > 1
-            for i, format in enumerate(ambiguous_formats):
+            for i, fmt in enumerate(ambiguous_formats):
                 if ambigious_id:
-                    format['format_id'] = '%s-%d' % (format_id, i)
+                    fmt['format_id'] = f'{format_id}-{i}'
                 # Ensure there is no conflict between id and ext in format selection
                 # See https://github.com/yt-dlp/yt-dlp/issues/1282
-                if format['format_id'] != format['ext'] and format['format_id'] in common_exts:
+                if fmt['format_id'] != fmt['ext'] and fmt['format_id'] in common_exts:
-                    format['format_id'] = 'f%s' % format['format_id']
+                    fmt['format_id'] = 'f{}'.format(fmt['format_id'])
 
-                if format.get('format') is None:
+                if fmt.get('format') is None:
-                    format['format'] = '{id} - {res}{note}'.format(
+                    fmt['format'] = '{id} - {res}{note}'.format(
-                        id=format['format_id'],
+                        id=fmt['format_id'],
-                        res=self.format_resolution(format),
+                        res=self.format_resolution(fmt),
-                        note=format_field(format, 'format_note', ' (%s)'),
+                        note=format_field(fmt, 'format_note', ' (%s)'),
                     )
 
         if self.params.get('check_formats') is True:
@@ -3009,7 +3008,7 @@ def to_screen(*msg):
             info_dict['requested_downloads'] = downloaded_formats
             info_dict = self.run_all_pps('after_video', info_dict)
             if max_downloads_reached:
-                raise MaxDownloadsReached()
+                raise MaxDownloadsReached
 
         # We update the info dict with the selected best quality format (backwards compatibility)
         info_dict.update(best_format)
@@ -3070,8 +3069,8 @@ def process_subtitles(self, video_id, normal_subtitles, automatic_captions):
             else:
                 f = formats[-1]
                 self.report_warning(
-                    'No subtitle format found matching "%s" for language %s, '
+                    'No subtitle format found matching "{}" for language {}, '
-                    'using %s' % (formats_query, lang, f['ext']))
+                    'using {}. Use --list-subs for a list of available subtitles'.format(formats_query, lang, f['ext']))
             subs[lang] = f
         return subs
 
@@ -3226,7 +3225,7 @@ def replace_info_dict(new_info):
 
         def check_max_downloads():
             if self._num_downloads >= float(self.params.get('max_downloads') or 'inf'):
-                raise MaxDownloadsReached()
+                raise MaxDownloadsReached
 
         if self.params.get('simulate'):
             info_dict['__write_download_archive'] = self.params.get('force_write_download_archive')
@@ -3400,7 +3399,7 @@ def correct_ext(filename, ext=new_ext):
                         for f in info_dict['requested_formats'] if fd != FFmpegFD else []:
                             f['filepath'] = fname = prepend_extension(
                                 correct_ext(temp_filename, info_dict['ext']),
-                                'f%s' % f['format_id'], info_dict['ext'])
+                                'f{}'.format(f['format_id']), info_dict['ext'])
                             downloaded.append(fname)
                         info_dict['url'] = '\n'.join(f['url'] for f in info_dict['requested_formats'])
                         success, real_download = self.dl(temp_filename, info_dict)
@@ -3433,7 +3432,7 @@ def correct_ext(filename, ext=new_ext):
                             if temp_filename != '-':
                                 fname = prepend_extension(
                                     correct_ext(temp_filename, new_info['ext']),
-                                    'f%s' % f['format_id'], new_info['ext'])
+                                    'f{}'.format(f['format_id']), new_info['ext'])
                                 if not self._ensure_dir_exists(fname):
                                     return
                                 f['filepath'] = fname
@@ -3465,11 +3464,11 @@ def correct_ext(filename, ext=new_ext):
                 info_dict['__finaldir'] = os.path.dirname(os.path.abspath(encodeFilename(full_filename)))
 
             except network_exceptions as err:
-                self.report_error('unable to download video data: %s' % error_to_compat_str(err))
+                self.report_error(f'unable to download video data: {err}')
                 return
             except OSError as err:
                 raise UnavailableVideoError(err)
-            except (ContentTooShortError, ) as err:
+            except ContentTooShortError as err:
                 self.report_error(f'content too short (expected {err.expected} bytes and served {err.downloaded})')
                 return
 
@@ -3536,13 +3535,13 @@ def ffmpeg_fixup(cndn, msg, cls):
                 try:
                     replace_info_dict(self.post_process(dl_filename, info_dict, files_to_move))
                 except PostProcessingError as err:
-                    self.report_error('Postprocessing: %s' % str(err))
+                    self.report_error(f'Postprocessing: {err}')
                     return
                 try:
                     for ph in self._post_hooks:
                         ph(info_dict['filepath'])
                 except Exception as err:
-                    self.report_error('post hooks: %s' % str(err))
+                    self.report_error(f'post hooks: {err}')
                     return
                 info_dict['__write_download_archive'] = True
 
@@ -3609,7 +3608,7 @@ def download_with_info_file(self, info_filename):
 
     @staticmethod
     def sanitize_info(info_dict, remove_private_keys=False):
-        ''' Sanitize the infodict for converting to json '''
+        """ Sanitize the infodict for converting to json """
         if info_dict is None:
             return info_dict
         info_dict.setdefault('epoch', int(time.time()))
@@ -3644,7 +3643,7 @@ def filter_fn(obj):
 
     @staticmethod
     def filter_requested_info(info_dict, actually_filter=True):
-        ''' Alias of sanitize_info for backward compatibility '''
+        """ Alias of sanitize_info for backward compatibility """
         return YoutubeDL.sanitize_info(info_dict, actually_filter)
 
     def _delete_downloaded_files(self, *files_to_delete, info={}, msg=None):
@@ -3666,7 +3665,7 @@ def actual_post_extract(info_dict):
                     actual_post_extract(video_dict or {})
                 return
 
-            post_extractor = info_dict.pop('__post_extractor', None) or (lambda: {})
+            post_extractor = info_dict.pop('__post_extractor', None) or dict
             info_dict.update(post_extractor())
 
         actual_post_extract(info_dict or {})
@@ -3771,7 +3770,7 @@ def format_resolution(format, default='unknown'):
         if format.get('width') and format.get('height'):
             return '%dx%d' % (format['width'], format['height'])
         elif format.get('height'):
-            return '%sp' % format['height']
+            return '{}p'.format(format['height'])
         elif format.get('width'):
             return '%dx?' % format['width']
         return default
@@ -3788,7 +3787,7 @@ def _format_note(self, fdict):
         if fdict.get('language'):
             if res:
                 res += ' '
-            res += '[%s]' % fdict['language']
+            res += '[{}]'.format(fdict['language'])
         if fdict.get('format_note') is not None:
             if res:
                 res += ' '
@@ -3800,7 +3799,7 @@ def _format_note(self, fdict):
         if fdict.get('container') is not None:
             if res:
                 res += ', '
-            res += '%s container' % fdict['container']
+            res += '{} container'.format(fdict['container'])
         if (fdict.get('vcodec') is not None
                 and fdict.get('vcodec') != 'none'):
             if res:
@@ -3815,7 +3814,7 @@ def _format_note(self, fdict):
         if fdict.get('fps') is not None:
             if res:
                 res += ', '
-            res += '%sfps' % fdict['fps']
+            res += '{}fps'.format(fdict['fps'])
         if fdict.get('acodec') is not None:
             if res:
                 res += ', '
@@ -3858,7 +3857,7 @@ def render_formats_table(self, info_dict):
                     format_field(f, 'format_id'),
                     format_field(f, 'ext'),
                     self.format_resolution(f),
-                    self._format_note(f)
+                    self._format_note(f),
                 ] for f in formats if (f.get('preference') or 0) >= -1000]
             return render_table(['format code', 'extension', 'resolution', 'note'], table, extra_gap=1)
 
@@ -3964,11 +3963,11 @@ def print_debug_header(self):
         from .extractor.extractors import _LAZY_LOADER
         from .extractor.extractors import (
             _PLUGIN_CLASSES as plugin_ies,
-            _PLUGIN_OVERRIDES as plugin_ie_overrides
+            _PLUGIN_OVERRIDES as plugin_ie_overrides,
         )
 
         def get_encoding(stream):
-            ret = str(getattr(stream, 'encoding', 'missing (%s)' % type(stream).__name__))
+            ret = str(getattr(stream, 'encoding', f'missing ({type(stream).__name__})'))
             additional_info = []
             if os.environ.get('TERM', '').lower() == 'dumb':
                 additional_info.append('dumb')
@@ -3979,13 +3978,13 @@ def get_encoding(stream):
                 ret = f'{ret} ({",".join(additional_info)})'
             return ret
 
-        encoding_str = 'Encodings: locale %s, fs %s, pref %s, %s' % (
+        encoding_str = 'Encodings: locale {}, fs {}, pref {}, {}'.format(
             locale.getpreferredencoding(),
             sys.getfilesystemencoding(),
             self.get_encoding(),
             ', '.join(
                 f'{key} {get_encoding(stream)}' for key, stream in self._out_files.items_
-                if stream is not None and key != 'console')
+                if stream is not None and key != 'console'),
         )
 
         logger = self.params.get('logger')
@@ -4017,7 +4016,7 @@ def get_encoding(stream):
             else:
                 write_debug('Lazy loading extractors is disabled')
         if self.params['compat_opts']:
-            write_debug('Compatibility options: %s' % ', '.join(self.params['compat_opts']))
+            write_debug('Compatibility options: {}'.format(', '.join(self.params['compat_opts'])))
 
         if current_git_head():
             write_debug(f'Git HEAD: {current_git_head()}')
@@ -4026,14 +4025,14 @@ def get_encoding(stream):
         exe_versions, ffmpeg_features = FFmpegPostProcessor.get_versions_and_features(self)
         ffmpeg_features = {key for key, val in ffmpeg_features.items() if val}
         if ffmpeg_features:
-            exe_versions['ffmpeg'] += ' (%s)' % ','.join(sorted(ffmpeg_features))
+            exe_versions['ffmpeg'] += ' ({})'.format(','.join(sorted(ffmpeg_features)))
 
         exe_versions['rtmpdump'] = rtmpdump_version()
         exe_versions['phantomjs'] = PhantomJSwrapper._version()
         exe_str = ', '.join(
             f'{exe} {v}' for exe, v in sorted(exe_versions.items()) if v
         ) or 'none'
-        write_debug('exe versions: %s' % exe_str)
+        write_debug(f'exe versions: {exe_str}')
 
         from .compat.compat_utils import get_package_info
         from .dependencies import available_dependencies
@@ -4045,7 +4044,7 @@ def get_encoding(stream):
         write_debug(f'Proxy map: {self.proxies}')
         write_debug(f'Request Handlers: {", ".join(rh.RH_NAME for rh in self._request_director.handlers.values())}')
         for plugin_type, plugins in {'Extractor': plugin_ies, 'Post-Processor': plugin_pps}.items():
-            display_list = ['%s%s' % (
+            display_list = ['{}{}'.format(
                 klass.__name__, '' if klass.__name__ == name else f' as {name}')
                 for name, klass in plugins.items()]
             if plugin_type == 'Extractor':
@@ -4062,14 +4061,13 @@ def get_encoding(stream):
         # Not implemented
         if False and self.params.get('call_home'):
             ipaddr = self.urlopen('https://yt-dl.org/ip').read().decode()
-            write_debug('Public IP address: %s' % ipaddr)
+            write_debug(f'Public IP address: {ipaddr}')
             latest_version = self.urlopen(
                 'https://yt-dl.org/latest/version').read().decode()
             if version_tuple(latest_version) > version_tuple(__version__):
                 self.report_warning(
-                    'You are using an outdated version (newest version: %s)! '
+                    f'You are using an outdated version (newest version: {latest_version})! '
-                    'See https://yt-dl.org/update if you need help updating.' %
+                    'See https://yt-dl.org/update if you need help updating.')
-                    latest_version)
 
     @functools.cached_property
     def proxies(self):
@@ -4103,7 +4101,7 @@ def _opener(self):
         return handler._get_instance(cookiejar=self.cookiejar, proxies=self.proxies)
 
     def _get_available_impersonate_targets(self):
-        # todo(future): make available as public API
+        # TODO(future): make available as public API
         return [
             (target, rh.RH_NAME)
             for rh in self._request_director.handlers.values()
@@ -4112,7 +4110,7 @@ def _get_available_impersonate_targets(self):
         ]
 
     def _impersonate_target_available(self, target):
-        # todo(future): make available as public API
+        # TODO(future): make available as public API
         return any(
             rh.is_supported_target(target)
             for rh in self._request_director.handlers.values()
@@ -4238,7 +4236,7 @@ def get_encoding(self):
         return encoding
 
     def _write_info_json(self, label, ie_result, infofn, overwrite=None):
-        ''' Write infojson and returns True = written, 'exists' = Already exists, False = skip, None = error '''
+        """ Write infojson and returns True = written, 'exists' = Already exists, False = skip, None = error """
         if overwrite is None:
             overwrite = self.params.get('overwrites', True)
         if not self.params.get('writeinfojson'):
@@ -4261,7 +4259,7 @@ def _write_info_json(self, label, ie_result, infofn, overwrite=None):
             return None
 
     def _write_description(self, label, ie_result, descfn):
-        ''' Write description and returns True = written, False = skip, None = error '''
+        """ Write description and returns True = written, False = skip, None = error """
         if not self.params.get('writedescription'):
             return False
         elif not descfn:
@@ -4285,7 +4283,7 @@ def _write_description(self, label, ie_result, descfn):
         return True
 
     def _write_subtitles(self, info_dict, filename):
-        ''' Write subtitles to file and return list of (sub_filename, final_sub_filename); or None if error'''
+        """ Write subtitles to file and return list of (sub_filename, final_sub_filename); or None if error"""
         ret = []
         subtitles = info_dict.get('requested_subtitles')
         if not (self.params.get('writesubtitles') or self.params.get('writeautomaticsub')):
@@ -4331,7 +4329,7 @@ def _write_subtitles(self, info_dict, filename):
                 self.dl(sub_filename, sub_copy, subtitle=True)
                 sub_info['filepath'] = sub_filename
                 ret.append((sub_filename, sub_filename_final))
-            except (DownloadError, ExtractorError, IOError, OSError, ValueError) + network_exceptions as err:
+            except (DownloadError, ExtractorError, OSError, ValueError, *network_exceptions) as err:
                 msg = f'Unable to download video subtitles for {sub_lang!r}: {err}'
                 if self.params.get('ignoreerrors') is not True:  # False or 'only_download'
                     if not self.params.get('ignoreerrors'):
@@ -4341,7 +4339,7 @@ def _write_subtitles(self, info_dict, filename):
         return ret
 
     def _write_thumbnails(self, label, info_dict, filename, thumb_filename_base=None):
-        ''' Write thumbnails to file and return list of (thumb_filename, final_thumb_filename); or None if error '''
+        """ Write thumbnails to file and return list of (thumb_filename, final_thumb_filename); or None if error """
         write_all = self.params.get('write_all_thumbnails', False)
         thumbnails, ret = [], []
         if write_all or self.params.get('writethumbnail', False):
@@ -4368,8 +4366,8 @@ def _write_thumbnails(self, label, info_dict, filename, thumb_filename_base=None
 
             existing_thumb = self.existing_file((thumb_filename_final, thumb_filename))
             if existing_thumb:
-                self.to_screen('[info] %s is already present' % (
+                self.to_screen('[info] {} is already present'.format((
-                    thumb_display_id if multiple else f'{label} thumbnail').capitalize())
+                    thumb_display_id if multiple else f'{label} thumbnail').capitalize()))
                 t['filepath'] = existing_thumb
                 ret.append((existing_thumb, thumb_filename_final))
             else:

yt_dlp/__init__.py

@@ -14,7 +14,7 @@
 import re
 import traceback
 
-from .compat import compat_os_name, compat_shlex_quote
+from .compat import compat_os_name
 from .cookies import SUPPORTED_BROWSERS, SUPPORTED_KEYRINGS
 from .downloader.external import get_external_downloader
 from .extractor import list_extractor_classes
@@ -58,6 +58,7 @@
     read_stdin,
     render_table,
     setproctitle,
+    shell_quote,
     traverse_obj,
     variadic,
     write_string,
@@ -115,9 +116,9 @@ def print_extractor_information(opts, urls):
             ie.description(markdown=False, search_examples=_SEARCHES)
             for ie in list_extractor_classes(opts.age_limit) if ie.working() and ie.IE_DESC is not False)
     elif opts.ap_list_mso:
-        out = 'Supported TV Providers:\n%s\n' % render_table(
+        out = 'Supported TV Providers:\n{}\n'.format(render_table(
             ['mso', 'mso name'],
-            [[mso_id, mso_info['name']] for mso_id, mso_info in MSO_INFO.items()])
+            [[mso_id, mso_info['name']] for mso_id, mso_info in MSO_INFO.items()]))
     else:
         return False
     write_string(out, out=sys.stdout)
@@ -129,7 +130,7 @@ def _unused_compat_opt(name):
         if name not in opts.compat_opts:
             return False
         opts.compat_opts.discard(name)
-        opts.compat_opts.update(['*%s' % name])
+        opts.compat_opts.update([f'*{name}'])
         return True
 
     def set_default_compat(compat_name, opt_name, default=True, remove_compat=True):
@@ -222,7 +223,7 @@ def validate_minmax(min_val, max_val, min_name, max_name=None):
         validate_minmax(opts.sleep_interval, opts.max_sleep_interval, 'sleep interval')
 
     if opts.wait_for_video is not None:
-        min_wait, max_wait, *_ = map(parse_duration, opts.wait_for_video.split('-', 1) + [None])
+        min_wait, max_wait, *_ = map(parse_duration, [*opts.wait_for_video.split('-', 1), None])
         validate(min_wait is not None and not (max_wait is None and '-' in opts.wait_for_video),
                  'time range to wait for video', opts.wait_for_video)
         validate_minmax(min_wait, max_wait, 'time range to wait for video')
@@ -264,9 +265,9 @@ def parse_retries(name, value):
     # Retry sleep function
     def parse_sleep_func(expr):
         NUMBER_RE = r'\d+(?:\.\d+)?'
-        op, start, limit, step, *_ = tuple(re.fullmatch(
+        op, start, limit, step, *_ = (*tuple(re.fullmatch(
             rf'(?:(linear|exp)=)?({NUMBER_RE})(?::({NUMBER_RE})?)?(?::({NUMBER_RE}))?',
-            expr.strip()).groups()) + (None, None)
+            expr.strip()).groups()), None, None)
 
         if op == 'exp':
             return lambda n: min(float(start) * (float(step or 2) ** n), float(limit or 'inf'))
@@ -396,13 +397,13 @@ def parse_chapters(name, value, advanced=False):
     # MetadataParser
     def metadataparser_actions(f):
         if isinstance(f, str):
-            cmd = '--parse-metadata %s' % compat_shlex_quote(f)
+            cmd = f'--parse-metadata {shell_quote(f)}'
             try:
                 actions = [MetadataFromFieldPP.to_action(f)]
             except Exception as err:
                 raise ValueError(f'{cmd} is invalid; {err}')
         else:
-            cmd = '--replace-in-metadata %s' % ' '.join(map(compat_shlex_quote, f))
+            cmd = f'--replace-in-metadata {shell_quote(f)}'
             actions = ((MetadataParserPP.Actions.REPLACE, x, *f[1:]) for x in f[0].split(','))
 
         for action in actions:
@@ -413,7 +414,7 @@ def metadataparser_actions(f):
             yield action
 
     if opts.metafromtitle is not None:
-        opts.parse_metadata.setdefault('pre_process', []).append('title:%s' % opts.metafromtitle)
+        opts.parse_metadata.setdefault('pre_process', []).append(f'title:{opts.metafromtitle}')
     opts.parse_metadata = {
         k: list(itertools.chain(*map(metadataparser_actions, v)))
         for k, v in opts.parse_metadata.items()
@@ -602,7 +603,7 @@ def get_postprocessors(opts):
         yield {
             'key': 'MetadataParser',
             'actions': actions,
-            'when': when
+            'when': when,
         }
     sponsorblock_query = opts.sponsorblock_mark | opts.sponsorblock_remove
     if sponsorblock_query:
@@ -610,19 +611,19 @@ def get_postprocessors(opts):
             'key': 'SponsorBlock',
             'categories': sponsorblock_query,
             'api': opts.sponsorblock_api,
-            'when': 'after_filter'
+            'when': 'after_filter',
         }
     if opts.convertsubtitles:
         yield {
             'key': 'FFmpegSubtitlesConvertor',
             'format': opts.convertsubtitles,
-            'when': 'before_dl'
+            'when': 'before_dl',
         }
     if opts.convertthumbnails:
         yield {
             'key': 'FFmpegThumbnailsConvertor',
             'format': opts.convertthumbnails,
-            'when': 'before_dl'
+            'when': 'before_dl',
         }
     if opts.extractaudio:
         yield {
@@ -647,7 +648,7 @@ def get_postprocessors(opts):
         yield {
             'key': 'FFmpegEmbedSubtitle',
             # already_have_subtitle = True prevents the file from being deleted after embedding
-            'already_have_subtitle': opts.writesubtitles and keep_subs
+            'already_have_subtitle': opts.writesubtitles and keep_subs,
         }
         if not opts.writeautomaticsub and keep_subs:
             opts.writesubtitles = True
@@ -660,7 +661,7 @@ def get_postprocessors(opts):
             'remove_sponsor_segments': opts.sponsorblock_remove,
             'remove_ranges': opts.remove_ranges,
             'sponsorblock_chapter_title': opts.sponsorblock_chapter_title,
-            'force_keyframes': opts.force_keyframes_at_cuts
+            'force_keyframes': opts.force_keyframes_at_cuts,
         }
     # FFmpegMetadataPP should be run after FFmpegVideoConvertorPP and
     # FFmpegExtractAudioPP as containers before conversion may not support
@@ -694,7 +695,7 @@ def get_postprocessors(opts):
         yield {
             'key': 'EmbedThumbnail',
             # already_have_thumbnail = True prevents the file from being deleted after embedding
-            'already_have_thumbnail': opts.writethumbnail
+            'already_have_thumbnail': opts.writethumbnail,
         }
         if not opts.writethumbnail:
             opts.writethumbnail = True
@@ -741,7 +742,7 @@ def parse_options(argv=None):
     print_only = bool(opts.forceprint) and all(k not in opts.forceprint for k in POSTPROCESS_WHEN[3:])
     any_getting = any(getattr(opts, k) for k in (
         'dumpjson', 'dump_single_json', 'getdescription', 'getduration', 'getfilename',
-        'getformat', 'getid', 'getthumbnail', 'gettitle', 'geturl'
+        'getformat', 'getid', 'getthumbnail', 'gettitle', 'geturl',
     ))
     if opts.quiet is None:
         opts.quiet = any_getting or opts.print_json or bool(opts.forceprint)
@@ -1002,7 +1003,7 @@ def _real_main(argv=None):
             def make_row(target, handler):
                 return [
                     join_nonempty(target.client.title(), target.version, delim='-') or '-',
-                    join_nonempty((target.os or "").title(), target.os_version, delim='-') or '-',
+                    join_nonempty((target.os or '').title(), target.os_version, delim='-') or '-',
                     handler,
                 ]
 

yt_dlp/aes.py

@@ -68,7 +68,7 @@ def pad_block(block, padding_mode):
         raise NotImplementedError(f'Padding mode {padding_mode} is not implemented')
 
     if padding_mode == 'iso7816' and padding_size:
-        block = block + [0x80]  # NB: += mutates list
+        block = [*block, 0x80]  # NB: += mutates list
         padding_size -= 1
 
     return block + [PADDING_BYTE[padding_mode]] * padding_size
@@ -110,9 +110,7 @@ def aes_ecb_decrypt(data, key, iv=None):
     for i in range(block_count):
         block = data[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES]
         encrypted_data += aes_decrypt(block, expanded_key)
-    encrypted_data = encrypted_data[:len(data)]
+    return encrypted_data[:len(data)]
-
-    return encrypted_data
 
 
 def aes_ctr_decrypt(data, key, iv):
@@ -148,9 +146,7 @@ def aes_ctr_encrypt(data, key, iv):
 
         cipher_counter_block = aes_encrypt(counter_block, expanded_key)
         encrypted_data += xor(block, cipher_counter_block)
-    encrypted_data = encrypted_data[:len(data)]
+    return encrypted_data[:len(data)]
-
-    return encrypted_data
 
 
 def aes_cbc_decrypt(data, key, iv):
@@ -174,9 +170,7 @@ def aes_cbc_decrypt(data, key, iv):
         decrypted_block = aes_decrypt(block, expanded_key)
         decrypted_data += xor(decrypted_block, previous_cipher_block)
         previous_cipher_block = block
-    decrypted_data = decrypted_data[:len(data)]
+    return decrypted_data[:len(data)]
-
-    return decrypted_data
 
 
 def aes_cbc_encrypt(data, key, iv, *, padding_mode='pkcs7'):
@@ -224,7 +218,7 @@ def aes_gcm_decrypt_and_verify(data, key, tag, nonce):
     hash_subkey = aes_encrypt([0] * BLOCK_SIZE_BYTES, key_expansion(key))
 
     if len(nonce) == 12:
-        j0 = nonce + [0, 0, 0, 1]
+        j0 = [*nonce, 0, 0, 0, 1]
     else:
         fill = (BLOCK_SIZE_BYTES - (len(nonce) % BLOCK_SIZE_BYTES)) % BLOCK_SIZE_BYTES + 8
         ghash_in = nonce + [0] * fill + bytes_to_intlist((8 * len(nonce)).to_bytes(8, 'big'))
@@ -242,11 +236,11 @@ def aes_gcm_decrypt_and_verify(data, key, tag, nonce):
         data
         + [0] * (BLOCK_SIZE_BYTES - len(data) + pad_len)        # pad
         + bytes_to_intlist((0 * 8).to_bytes(8, 'big')           # length of associated data
-                           + ((len(data) * 8).to_bytes(8, 'big')))  # length of data
+                           + ((len(data) * 8).to_bytes(8, 'big'))),  # length of data
     )
 
     if tag != aes_ctr_encrypt(s_tag, key, j0):
-        raise ValueError("Mismatching authentication tag")
+        raise ValueError('Mismatching authentication tag')
 
     return decrypted_data
 
@@ -288,9 +282,7 @@ def aes_decrypt(data, expanded_key):
             data = list(iter_mix_columns(data, MIX_COLUMN_MATRIX_INV))
         data = shift_rows_inv(data)
         data = sub_bytes_inv(data)
-    data = xor(data, expanded_key[:BLOCK_SIZE_BYTES])
+    return xor(data, expanded_key[:BLOCK_SIZE_BYTES])
-
-    return data
 
 
 def aes_decrypt_text(data, password, key_size_bytes):
@@ -318,9 +310,7 @@ def aes_decrypt_text(data, password, key_size_bytes):
     cipher = data[NONCE_LENGTH_BYTES:]
 
     decrypted_data = aes_ctr_decrypt(cipher, key, nonce + [0] * (BLOCK_SIZE_BYTES - NONCE_LENGTH_BYTES))
-    plaintext = intlist_to_bytes(decrypted_data)
+    return intlist_to_bytes(decrypted_data)
-
-    return plaintext
 
 
 RCON = (0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36)
@@ -428,9 +418,7 @@ def key_expansion(data):
         for _ in range(3 if key_size_bytes == 32 else 2 if key_size_bytes == 24 else 0):
             temp = data[-4:]
             data += xor(temp, data[-key_size_bytes: 4 - key_size_bytes])
-    data = data[:expanded_key_size_bytes]
+    return data[:expanded_key_size_bytes]
-
-    return data
 
 
 def iter_vector(iv):
@@ -511,7 +499,7 @@ def block_product(block_x, block_y):
     # NIST SP 800-38D, Algorithm 1
 
     if len(block_x) != BLOCK_SIZE_BYTES or len(block_y) != BLOCK_SIZE_BYTES:
-        raise ValueError("Length of blocks need to be %d bytes" % BLOCK_SIZE_BYTES)
+        raise ValueError(f'Length of blocks need to be {BLOCK_SIZE_BYTES} bytes')
 
     block_r = [0xE1] + [0] * (BLOCK_SIZE_BYTES - 1)
     block_v = block_y[:]
@@ -534,7 +522,7 @@ def ghash(subkey, data):
     # NIST SP 800-38D, Algorithm 2
 
     if len(data) % BLOCK_SIZE_BYTES:
-        raise ValueError("Length of data should be %d bytes" % BLOCK_SIZE_BYTES)
+        raise ValueError(f'Length of data should be {BLOCK_SIZE_BYTES} bytes')
 
     last_y = [0] * BLOCK_SIZE_BYTES
     for i in range(0, len(data), BLOCK_SIZE_BYTES):

yt_dlp/cache.py

@@ -81,10 +81,10 @@ def remove(self):
 
         cachedir = self._get_root_dir()
         if not any((term in cachedir) for term in ('cache', 'tmp')):
-            raise Exception('Not removing directory %s - this does not look like a cache dir' % cachedir)
+            raise Exception(f'Not removing directory {cachedir} - this does not look like a cache dir')
 
         self._ydl.to_screen(
-            'Removing cache dir %s .' % cachedir, skip_eol=True)
+            f'Removing cache dir {cachedir} .', skip_eol=True)
         if os.path.exists(cachedir):
             self._ydl.to_screen('.', skip_eol=True)
             shutil.rmtree(cachedir)

yt_dlp/compat/_legacy.py

@@ -35,7 +35,7 @@
 from ..dependencies import brotli as compat_brotli  # noqa: F401
 from ..dependencies import websockets as compat_websockets  # noqa: F401
 from ..dependencies.Cryptodome import AES as compat_pycrypto_AES  # noqa: F401
-from ..networking.exceptions import HTTPError as compat_HTTPError  # noqa: F401
+from ..networking.exceptions import HTTPError as compat_HTTPError
 
 passthrough_module(__name__, '...utils', ('WINDOWS_VT_MODE', 'windows_enable_vt_mode'))
 

yt_dlp/compat/functools.py

@@ -7,6 +7,6 @@
 del passthrough_module
 
 try:
-    cache  # >= 3.9
+    _ = cache  # >= 3.9
 except NameError:
     cache = lru_cache(maxsize=None)

yt_dlp/cookies.py

@@ -46,7 +46,7 @@
 from .utils._utils import _YDLLogger
 from .utils.networking import normalize_url
 
-CHROMIUM_BASED_BROWSERS = {'brave', 'chrome', 'chromium', 'edge', 'opera', 'vivaldi'}
+CHROMIUM_BASED_BROWSERS = {'brave', 'chrome', 'chromium', 'edge', 'opera', 'vivaldi', 'whale'}
 SUPPORTED_BROWSERS = CHROMIUM_BASED_BROWSERS | {'firefox', 'safari'}
 
 
@@ -146,7 +146,7 @@ def _extract_firefox_cookies(profile, container, logger):
             identities = json.load(containers).get('identities', [])
         container_id = next((context.get('userContextId') for context in identities if container in (
             context.get('name'),
-            try_call(lambda: re.fullmatch(r'userContext([^\.]+)\.label', context['l10nID']).group())
+            try_call(lambda: re.fullmatch(r'userContext([^\.]+)\.label', context['l10nID']).group()),
         )), None)
         if not isinstance(container_id, int):
             raise ValueError(f'could not find firefox container "{container}" in containers.json')
@@ -219,6 +219,7 @@ def _get_chromium_based_browser_settings(browser_name):
             'edge': os.path.join(appdata_local, R'Microsoft\Edge\User Data'),
             'opera': os.path.join(appdata_roaming, R'Opera Software\Opera Stable'),
             'vivaldi': os.path.join(appdata_local, R'Vivaldi\User Data'),
+            'whale': os.path.join(appdata_local, R'Naver\Naver Whale\User Data'),
         }[browser_name]
 
     elif sys.platform == 'darwin':
@@ -230,6 +231,7 @@ def _get_chromium_based_browser_settings(browser_name):
             'edge': os.path.join(appdata, 'Microsoft Edge'),
             'opera': os.path.join(appdata, 'com.operasoftware.Opera'),
             'vivaldi': os.path.join(appdata, 'Vivaldi'),
+            'whale': os.path.join(appdata, 'Naver/Whale'),
         }[browser_name]
 
     else:
@@ -241,6 +243,7 @@ def _get_chromium_based_browser_settings(browser_name):
             'edge': os.path.join(config, 'microsoft-edge'),
             'opera': os.path.join(config, 'opera'),
             'vivaldi': os.path.join(config, 'vivaldi'),
+            'whale': os.path.join(config, 'naver-whale'),
         }[browser_name]
 
     # Linux keyring names can be determined by snooping on dbus while opening the browser in KDE:
@@ -252,6 +255,7 @@ def _get_chromium_based_browser_settings(browser_name):
         'edge': 'Microsoft Edge' if sys.platform == 'darwin' else 'Chromium',
         'opera': 'Opera' if sys.platform == 'darwin' else 'Chromium',
         'vivaldi': 'Vivaldi' if sys.platform == 'darwin' else 'Chrome',
+        'whale': 'Whale',
     }[browser_name]
 
     browsers_without_profiles = {'opera'}
@@ -259,7 +263,7 @@ def _get_chromium_based_browser_settings(browser_name):
     return {
         'browser_dir': browser_dir,
         'keyring_name': keyring_name,
-        'supports_profiles': browser_name not in browsers_without_profiles
+        'supports_profiles': browser_name not in browsers_without_profiles,
     }
 
 
@@ -347,6 +351,11 @@ def _process_chrome_cookie(decryptor, host_key, name, value, encrypted_value, pa
         if value is None:
             return is_encrypted, None
 
+    # In chrome, session cookies have expires_utc set to 0
+    # In our cookie-store, cookies that do not expire should have expires set to None
+    if not expires_utc:
+        expires_utc = None
+
     return is_encrypted, http.cookiejar.Cookie(
         version=0, name=name, value=value, port=None, port_specified=False,
         domain=host_key, domain_specified=bool(host_key), domain_initial_dot=host_key.startswith('.'),
@@ -817,7 +826,7 @@ def _choose_linux_keyring(logger):
     elif desktop_environment == _LinuxDesktopEnvironment.KDE6:
         linux_keyring = _LinuxKeyring.KWALLET6
     elif desktop_environment in (
-        _LinuxDesktopEnvironment.KDE3, _LinuxDesktopEnvironment.LXQT, _LinuxDesktopEnvironment.OTHER
+        _LinuxDesktopEnvironment.KDE3, _LinuxDesktopEnvironment.LXQT, _LinuxDesktopEnvironment.OTHER,
     ):
         linux_keyring = _LinuxKeyring.BASICTEXT
     else:
@@ -852,7 +861,7 @@ def _get_kwallet_network_wallet(keyring, logger):
             'dbus-send', '--session', '--print-reply=literal',
             f'--dest={service_name}',
             wallet_path,
-            'org.kde.KWallet.networkWallet'
+            'org.kde.KWallet.networkWallet',
         ], text=True, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
 
         if returncode:
@@ -882,7 +891,7 @@ def _get_kwallet_password(browser_keyring_name, keyring, logger):
             'kwallet-query',
             '--read-password', f'{browser_keyring_name} Safe Storage',
             '--folder', f'{browser_keyring_name} Keys',
-            network_wallet
+            network_wallet,
         ], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
 
         if returncode:
@@ -922,9 +931,8 @@ def _get_gnome_keyring_password(browser_keyring_name, logger):
         for item in col.get_all_items():
             if item.get_label() == f'{browser_keyring_name} Safe Storage':
                 return item.get_secret()
-        else:
+        logger.error('failed to read from keyring')
-            logger.error('failed to read from keyring')
+        return b''
-            return b''
 
 
 def _get_linux_keyring_password(browser_keyring_name, keyring, logger):
@@ -1044,7 +1052,7 @@ class DATA_BLOB(ctypes.Structure):
         None,  # pvReserved: must be NULL
         None,  # pPromptStruct: information about prompts to display
         0,  # dwFlags
-        ctypes.byref(blob_out)  # pDataOut
+        ctypes.byref(blob_out),  # pDataOut
     )
     if not ret:
         logger.warning('failed to decrypt with DPAPI', only_once=True)
@@ -1120,24 +1128,24 @@ class LenientSimpleCookie(http.cookies.SimpleCookie):
     _LEGAL_VALUE_CHARS = _LEGAL_KEY_CHARS + re.escape('(),/<=>?@[]{}')
 
     _RESERVED = {
-        "expires",
+        'expires',
-        "path",
+        'path',
-        "comment",
+        'comment',
-        "domain",
+        'domain',
-        "max-age",
+        'max-age',
-        "secure",
+        'secure',
-        "httponly",
+        'httponly',
-        "version",
+        'version',
-        "samesite",
+        'samesite',
     }
 
-    _FLAGS = {"secure", "httponly"}
+    _FLAGS = {'secure', 'httponly'}
 
     # Added 'bad' group to catch the remaining value
-    _COOKIE_PATTERN = re.compile(r"""
+    _COOKIE_PATTERN = re.compile(r'''
         \s*                            # Optional whitespace at start of cookie
         (?P<key>                       # Start of group 'key'
-        [""" + _LEGAL_KEY_CHARS + r"""]+?# Any word of at least one letter
+        [''' + _LEGAL_KEY_CHARS + r''']+?# Any word of at least one letter
         )                              # End of group 'key'
         (                              # Optional group: there may not be a value.
         \s*=\s*                          # Equal Sign
@@ -1147,7 +1155,7 @@ class LenientSimpleCookie(http.cookies.SimpleCookie):
         |                                    # or
         \w{3},\s[\w\d\s-]{9,11}\s[\d:]{8}\sGMT # Special case for "expires" attr
         |                                    # or
-        [""" + _LEGAL_VALUE_CHARS + r"""]*     # Any word or empty string
+        [''' + _LEGAL_VALUE_CHARS + r''']*     # Any word or empty string
         )                                  # End of group 'val'
         |                                  # or
         (?P<bad>(?:\\;|[^;])*?)            # 'bad' group fallback for invalid values
@@ -1155,7 +1163,7 @@ class LenientSimpleCookie(http.cookies.SimpleCookie):
         )?                             # End of optional value group
         \s*                            # Any number of spaces.
         (\s+|;|$)                      # Ending either at space, semicolon, or EOS.
-        """, re.ASCII | re.VERBOSE)
+        ''', re.ASCII | re.VERBOSE)
 
     def load(self, data):
         # Workaround for https://github.com/yt-dlp/yt-dlp/issues/4776
@@ -1251,14 +1259,14 @@ def _really_save(self, f, ignore_discard, ignore_expires):
                 # with no name, whereas http.cookiejar regards it as a
                 # cookie with no value.
                 name, value = '', name
-            f.write('%s\n' % '\t'.join((
+            f.write('{}\n'.format('\t'.join((
                 cookie.domain,
                 self._true_or_false(cookie.domain.startswith('.')),
                 cookie.path,
                 self._true_or_false(cookie.secure),
                 str_or_none(cookie.expires, default=''),
-                name, value
+                name, value,
-            )))
+            ))))
 
     def save(self, filename=None, ignore_discard=True, ignore_expires=True):
         """
@@ -1297,10 +1305,10 @@ def prepare_line(line):
                 return line
             cookie_list = line.split('\t')
             if len(cookie_list) != self._ENTRY_LEN:
-                raise http.cookiejar.LoadError('invalid length %d' % len(cookie_list))
+                raise http.cookiejar.LoadError(f'invalid length {len(cookie_list)}')
             cookie = self._CookieFileEntry(*cookie_list)
             if cookie.expires_at and not cookie.expires_at.isdigit():
-                raise http.cookiejar.LoadError('invalid expires at %s' % cookie.expires_at)
+                raise http.cookiejar.LoadError(f'invalid expires at {cookie.expires_at}')
             return line
 
         cf = io.StringIO()

yt_dlp/downloader/common.py

@@ -404,7 +404,7 @@ def with_fields(*tups, default=''):
 
     def report_resuming_byte(self, resume_len):
         """Report attempt to resume at given byte."""
-        self.to_screen('[download] Resuming download at byte %s' % resume_len)
+        self.to_screen(f'[download] Resuming download at byte {resume_len}')
 
     def report_retry(self, err, count, retries, frag_index=NO_DEFAULT, fatal=True):
         """Report retry"""

yt_dlp/downloader/external.py

@@ -55,7 +55,7 @@ def real_download(self, filename, info_dict):
             # correct and expected termination thus all postprocessing
             # should take place
             retval = 0
-            self.to_screen('[%s] Interrupted by user' % self.get_basename())
+            self.to_screen(f'[{self.get_basename()}] Interrupted by user')
         finally:
             if self._cookies_tempfile:
                 self.try_remove(self._cookies_tempfile)
@@ -172,7 +172,7 @@ def _call_downloader(self, tmpfilename, info_dict):
         decrypt_fragment = self.decrypter(info_dict)
         dest, _ = self.sanitize_open(tmpfilename, 'wb')
         for frag_index, fragment in enumerate(info_dict['fragments']):
-            fragment_filename = '%s-Frag%d' % (tmpfilename, frag_index)
+            fragment_filename = f'{tmpfilename}-Frag{frag_index}'
             try:
                 src, _ = self.sanitize_open(fragment_filename, 'rb')
             except OSError as err:
@@ -186,7 +186,7 @@ def _call_downloader(self, tmpfilename, info_dict):
             if not self.params.get('keep_fragments', False):
                 self.try_remove(encodeFilename(fragment_filename))
         dest.close()
-        self.try_remove(encodeFilename('%s.frag.urls' % tmpfilename))
+        self.try_remove(encodeFilename(f'{tmpfilename}.frag.urls'))
         return 0
 
     def _call_process(self, cmd, info_dict):
@@ -336,11 +336,11 @@ def _make_cmd(self, tmpfilename, info_dict):
 
         if 'fragments' in info_dict:
             cmd += ['--uri-selector=inorder']
-            url_list_file = '%s.frag.urls' % tmpfilename
+            url_list_file = f'{tmpfilename}.frag.urls'
             url_list = []
             for frag_index, fragment in enumerate(info_dict['fragments']):
-                fragment_filename = '%s-Frag%d' % (os.path.basename(tmpfilename), frag_index)
+                fragment_filename = f'{os.path.basename(tmpfilename)}-Frag{frag_index}'
-                url_list.append('%s\n\tout=%s' % (fragment['url'], self._aria2c_filename(fragment_filename)))
+                url_list.append('{}\n\tout={}'.format(fragment['url'], self._aria2c_filename(fragment_filename)))
             stream, _ = self.sanitize_open(url_list_file, 'wb')
             stream.write('\n'.join(url_list).encode())
             stream.close()
@@ -357,7 +357,7 @@ def aria2c_rpc(self, rpc_port, rpc_secret, method, params=()):
             'id': sanitycheck,
             'method': method,
             'params': [f'token:{rpc_secret}', *params],
-        }).encode('utf-8')
+        }).encode()
         request = Request(
             f'http://localhost:{rpc_port}/jsonrpc',
             data=d, headers={
@@ -416,7 +416,7 @@ def get_stat(key, *obj, average=False):
                     'total_bytes_estimate': total,
                     'eta': (total - downloaded) / (speed or 1),
                     'fragment_index': min(frag_count, len(completed) + 1) if fragmented else None,
-                    'elapsed': time.time() - started
+                    'elapsed': time.time() - started,
                 })
                 self._hook_progress(status, info_dict)
 
@@ -509,12 +509,12 @@ def _call_downloader(self, tmpfilename, info_dict):
         proxy = self.params.get('proxy')
         if proxy:
             if not re.match(r'^[\da-zA-Z]+://', proxy):
-                proxy = 'http://%s' % proxy
+                proxy = f'http://{proxy}'
 
             if proxy.startswith('socks'):
                 self.report_warning(
-                    '%s does not support SOCKS proxies. Downloading is likely to fail. '
+                    f'{self.get_basename()} does not support SOCKS proxies. Downloading is likely to fail. '
-                    'Consider adding --hls-prefer-native to your command.' % self.get_basename())
+                    'Consider adding --hls-prefer-native to your command.')
 
             # Since December 2015 ffmpeg supports -http_proxy option (see
             # http://git.videolan.org/?p=ffmpeg.git;a=commit;h=b4eb1f29ebddd60c41a2eb39f5af701e38e0d3fd)
@@ -575,7 +575,7 @@ def _call_downloader(self, tmpfilename, info_dict):
             if end_time:
                 args += ['-t', str(end_time - start_time)]
 
-            args += self._configuration_args((f'_i{i + 1}', '_i')) + ['-i', fmt['url']]
+            args += [*self._configuration_args((f'_i{i + 1}', '_i')), '-i', fmt['url']]
 
         if not (start_time or end_time) or not self.params.get('force_keyframes_at_cuts'):
             args += ['-c', 'copy']

yt_dlp/downloader/f4m.py

@@ -67,12 +67,12 @@ def read_asrt(self):
         self.read_bytes(3)
         quality_entry_count = self.read_unsigned_char()
         # QualityEntryCount
-        for i in range(quality_entry_count):
+        for _ in range(quality_entry_count):
             self.read_string()
 
         segment_run_count = self.read_unsigned_int()
         segments = []
-        for i in range(segment_run_count):
+        for _ in range(segment_run_count):
             first_segment = self.read_unsigned_int()
             fragments_per_segment = self.read_unsigned_int()
             segments.append((first_segment, fragments_per_segment))
@@ -91,12 +91,12 @@ def read_afrt(self):
 
         quality_entry_count = self.read_unsigned_char()
         # QualitySegmentUrlModifiers
-        for i in range(quality_entry_count):
+        for _ in range(quality_entry_count):
             self.read_string()
 
         fragments_count = self.read_unsigned_int()
         fragments = []
-        for i in range(fragments_count):
+        for _ in range(fragments_count):
             first = self.read_unsigned_int()
             first_ts = self.read_unsigned_long_long()
             duration = self.read_unsigned_int()
@@ -135,11 +135,11 @@ def read_abst(self):
         self.read_string()  # MovieIdentifier
         server_count = self.read_unsigned_char()
         # ServerEntryTable
-        for i in range(server_count):
+        for _ in range(server_count):
             self.read_string()
         quality_count = self.read_unsigned_char()
         # QualityEntryTable
-        for i in range(quality_count):
+        for _ in range(quality_count):
             self.read_string()
         # DrmData
         self.read_string()
@@ -148,14 +148,14 @@ def read_abst(self):
 
         segments_count = self.read_unsigned_char()
         segments = []
-        for i in range(segments_count):
+        for _ in range(segments_count):
             box_size, box_type, box_data = self.read_box_info()
             assert box_type == b'asrt'
             segment = FlvReader(box_data).read_asrt()
             segments.append(segment)
         fragments_run_count = self.read_unsigned_char()
         fragments = []
-        for i in range(fragments_run_count):
+        for _ in range(fragments_run_count):
             box_size, box_type, box_data = self.read_box_info()
             assert box_type == b'afrt'
             fragments.append(FlvReader(box_data).read_afrt())
@@ -309,7 +309,7 @@ def _parse_bootstrap_node(self, node, base_url):
     def real_download(self, filename, info_dict):
         man_url = info_dict['url']
         requested_bitrate = info_dict.get('tbr')
-        self.to_screen('[%s] Downloading f4m manifest' % self.FD_NAME)
+        self.to_screen(f'[{self.FD_NAME}] Downloading f4m manifest')
 
         urlh = self.ydl.urlopen(self._prepare_url(info_dict, man_url))
         man_url = urlh.url
@@ -326,8 +326,8 @@ def real_download(self, filename, info_dict):
             formats = sorted(formats, key=lambda f: f[0])
             rate, media = formats[-1]
         else:
-            rate, media = list(filter(
+            rate, media = next(filter(
-                lambda f: int(f[0]) == requested_bitrate, formats))[0]
+                lambda f: int(f[0]) == requested_bitrate, formats))
 
         # Prefer baseURL for relative URLs as per 11.2 of F4M 3.0 spec.
         man_base_url = get_base_url(doc) or man_url

yt_dlp/downloader/fragment.py

@@ -199,7 +199,7 @@ def _prepare_frag_download(self, ctx):
                         '.ytdl file is corrupt' if is_corrupt else
                         'Inconsistent state of incomplete fragment download')
                     self.report_warning(
-                        '%s. Restarting from the beginning ...' % message)
+                        f'{message}. Restarting from the beginning ...')
                     ctx['fragment_index'] = resume_len = 0
                     if 'ytdl_corrupt' in ctx:
                         del ctx['ytdl_corrupt']
@@ -366,10 +366,10 @@ def decrypt_fragment(fragment, frag_content):
         return decrypt_fragment
 
     def download_and_append_fragments_multiple(self, *args, **kwargs):
-        '''
+        """
         @params (ctx1, fragments1, info_dict1), (ctx2, fragments2, info_dict2), ...
                 all args must be either tuple or list
-        '''
+        """
         interrupt_trigger = [True]
         max_progress = len(args)
         if max_progress == 1:
@@ -424,7 +424,7 @@ def interrupt_trigger_iter(fg):
             finally:
                 tpe.shutdown(wait=True)
         if not interrupt_trigger[0] and not is_live:
-            raise KeyboardInterrupt()
+            raise KeyboardInterrupt
         # we expect the user wants to stop and DO WANT the preceding postprocessors to run;
         # so returning a intermediate result here instead of KeyboardInterrupt on live
         return result

yt_dlp/downloader/hls.py

@@ -72,7 +72,7 @@ def check_results():
 
     def real_download(self, filename, info_dict):
         man_url = info_dict['url']
-        self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME)
+        self.to_screen(f'[{self.FD_NAME}] Downloading m3u8 manifest')
 
         urlh = self.ydl.urlopen(self._prepare_url(info_dict, man_url))
         man_url = urlh.url
@@ -228,7 +228,7 @@ def is_ad_fragment_end(s):
                         'url': frag_url,
                         'decrypt_info': decrypt_info,
                         'byte_range': byte_range,
-                        'media_sequence': media_sequence
+                        'media_sequence': media_sequence,
                     })
                     media_sequence += 1
 
@@ -350,9 +350,8 @@ def pack_fragment(frag_content, frag_index):
                             # XXX: this should probably be silent as well
                             # or verify that all segments contain the same data
                             self.report_warning(bug_reports_message(
-                                'Discarding a %s block found in the middle of the stream; '
+                                f'Discarding a {type(block).__name__} block found in the middle of the stream; '
-                                'if the subtitles display incorrectly,'
+                                'if the subtitles display incorrectly,'))
-                                % (type(block).__name__)))
                             continue
                     block.write_into(output)
 

yt_dlp/downloader/http.py

@@ -176,7 +176,7 @@ def establish_connection():
                                 'downloaded_bytes': ctx.resume_len,
                                 'total_bytes': ctx.resume_len,
                             }, info_dict)
-                            raise SucceedDownload()
+                            raise SucceedDownload
                         else:
                             # The length does not match, we start the download over
                             self.report_unable_to_resume()
@@ -194,7 +194,7 @@ def establish_connection():
 
         def close_stream():
             if ctx.stream is not None:
-                if not ctx.tmpfilename == '-':
+                if ctx.tmpfilename != '-':
                     ctx.stream.close()
                 ctx.stream = None
 
@@ -268,20 +268,20 @@ def retry(e):
                         ctx.filename = self.undo_temp_name(ctx.tmpfilename)
                         self.report_destination(ctx.filename)
                     except OSError as err:
-                        self.report_error('unable to open for writing: %s' % str(err))
+                        self.report_error(f'unable to open for writing: {err}')
                         return False
 
                     if self.params.get('xattr_set_filesize', False) and data_len is not None:
                         try:
                             write_xattr(ctx.tmpfilename, 'user.ytdl.filesize', str(data_len).encode())
                         except (XAttrUnavailableError, XAttrMetadataError) as err:
-                            self.report_error('unable to set filesize xattr: %s' % str(err))
+                            self.report_error(f'unable to set filesize xattr: {err}')
 
                 try:
                     ctx.stream.write(data_block)
                 except OSError as err:
                     self.to_stderr('\n')
-                    self.report_error('unable to write data: %s' % str(err))
+                    self.report_error(f'unable to write data: {err}')
                     return False
 
                 # Apply rate limit
@@ -327,7 +327,7 @@ def retry(e):
                     elif now - ctx.throttle_start > 3:
                         if ctx.stream is not None and ctx.tmpfilename != '-':
                             ctx.stream.close()
-                        raise ThrottledDownload()
+                        raise ThrottledDownload
                 elif speed:
                     ctx.throttle_start = None
 
@@ -338,7 +338,7 @@ def retry(e):
 
             if not is_test and ctx.chunk_size and ctx.content_len is not None and byte_counter < ctx.content_len:
                 ctx.resume_len = byte_counter
-                raise NextFragment()
+                raise NextFragment
 
             if ctx.tmpfilename != '-':
                 ctx.stream.close()

yt_dlp/downloader/ism.py

@@ -251,7 +251,7 @@ def real_download(self, filename, info_dict):
         skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
 
         frag_index = 0
-        for i, segment in enumerate(segments):
+        for segment in segments:
             frag_index += 1
             if frag_index <= ctx['fragment_index']:
                 continue

yt_dlp/downloader/mhtml.py

@@ -10,7 +10,7 @@
 
 
 class MhtmlFD(FragmentFD):
-    _STYLESHEET = """\
+    _STYLESHEET = '''\
 html, body {
     margin: 0;
     padding: 0;
@@ -45,7 +45,7 @@ class MhtmlFD(FragmentFD):
     max-width: 100%;
     max-height: calc(100vh - 5em);
 }
-"""
+'''
     _STYLESHEET = re.sub(r'\s+', ' ', _STYLESHEET)
     _STYLESHEET = re.sub(r'\B \B|(?<=[\w\-]) (?=[^\w\-])|(?<=[^\w\-]) (?=[\w\-])', '', _STYLESHEET)
 
@@ -57,24 +57,19 @@ def _escape_mime(s):
         )).decode('us-ascii') + '?='
 
     def _gen_cid(self, i, fragment, frag_boundary):
-        return '%u.%s@yt-dlp.github.io.invalid' % (i, frag_boundary)
+        return f'{i}.{frag_boundary}@yt-dlp.github.io.invalid'
 
     def _gen_stub(self, *, fragments, frag_boundary, title):
         output = io.StringIO()
 
-        output.write((
+        output.write(
             '<!DOCTYPE html>'
             '<html>'
             '<head>'
-            ''  '<meta name="generator" content="yt-dlp {version}">'
+            f'<meta name="generator" content="yt-dlp {escapeHTML(YT_DLP_VERSION)}">'
-            ''  '<title>{title}</title>'
+            f'<title>{escapeHTML(title)}</title>'
-            ''  '<style>{styles}</style>'
+            f'<style>{self._STYLESHEET}</style>'
-            '<body>'
+            '<body>')
-        ).format(
-            version=escapeHTML(YT_DLP_VERSION),
-            styles=self._STYLESHEET,
-            title=escapeHTML(title)
-        ))
 
         t0 = 0
         for i, frag in enumerate(fragments):
@@ -87,15 +82,12 @@ def _gen_stub(self, *, fragments, frag_boundary, title):
                     num=i + 1,
                     t0=srt_subtitles_timecode(t0),
                     t1=srt_subtitles_timecode(t1),
-                    duration=formatSeconds(frag['duration'], msec=True)
+                    duration=formatSeconds(frag['duration'], msec=True),
                 ))
             except (KeyError, ValueError, TypeError):
                 t1 = None
-                output.write((
+                output.write(f'<figcaption>Slide #{i + 1}</figcaption>')
-                    '<figcaption>Slide #{num}</figcaption>'
+            output.write(f'<img src="cid:{self._gen_cid(i, frag, frag_boundary)}">')
-                ).format(num=i + 1))
-            output.write('<img src="cid:{cid}">'.format(
-                cid=self._gen_cid(i, frag, frag_boundary)))
             output.write('</figure>')
             t0 = t1
 
@@ -126,31 +118,24 @@ def real_download(self, filename, info_dict):
             stub = self._gen_stub(
                 fragments=fragments,
                 frag_boundary=frag_boundary,
-                title=title
+                title=title,
             )
 
             ctx['dest_stream'].write((
                 'MIME-Version: 1.0\r\n'
                 'From: <nowhere@yt-dlp.github.io.invalid>\r\n'
                 'To: <nowhere@yt-dlp.github.io.invalid>\r\n'
-                'Subject: {title}\r\n'
+                f'Subject: {self._escape_mime(title)}\r\n'
                 'Content-type: multipart/related; '
-                ''  'boundary="{boundary}"; '
+                f'boundary="{frag_boundary}"; '
-                ''  'type="text/html"\r\n'
+                'type="text/html"\r\n'
-                'X.yt-dlp.Origin: {origin}\r\n'
+                f'X.yt-dlp.Origin: {origin}\r\n'
                 '\r\n'
-                '--{boundary}\r\n'
+                f'--{frag_boundary}\r\n'
                 'Content-Type: text/html; charset=utf-8\r\n'
-                'Content-Length: {length}\r\n'
+                f'Content-Length: {len(stub)}\r\n'
                 '\r\n'
-                '{stub}\r\n'
+                f'{stub}\r\n').encode())
-            ).format(
-                origin=origin,
-                boundary=frag_boundary,
-                length=len(stub),
-                title=self._escape_mime(title),
-                stub=stub
-            ).encode())
             extra_state['header_written'] = True
 
         for i, fragment in enumerate(fragments):

yt_dlp/downloader/niconico.py

@@ -15,7 +15,7 @@ class NiconicoDmcFD(FileDownloader):
     def real_download(self, filename, info_dict):
         from ..extractor.niconico import NiconicoIE
 
-        self.to_screen('[%s] Downloading from DMC' % self.FD_NAME)
+        self.to_screen(f'[{self.FD_NAME}] Downloading from DMC')
         ie = NiconicoIE(self.ydl)
         info_dict, heartbeat_info_dict = ie._get_heartbeat_info(info_dict)
 
@@ -34,7 +34,7 @@ def heartbeat():
             try:
                 self.ydl.urlopen(request).read()
             except Exception:
-                self.to_screen('[%s] Heartbeat failed' % self.FD_NAME)
+                self.to_screen(f'[{self.FD_NAME}] Heartbeat failed')
 
             with heartbeat_lock:
                 if not download_complete:
@@ -85,14 +85,14 @@ def communicate_ws(reconnect):
                             'quality': live_quality,
                             'protocol': 'hls+fmp4',
                             'latency': live_latency,
-                            'chasePlay': False
+                            'chasePlay': False,
                         },
                         'room': {
                             'protocol': 'webSocket',
-                            'commentable': True
+                            'commentable': True,
                         },
                         'reconnect': True,
-                    }
+                    },
                 }))
             else:
                 ws = ws_extractor
@@ -118,7 +118,7 @@ def communicate_ws(reconnect):
                     elif self.ydl.params.get('verbose', False):
                         if len(recv) > 100:
                             recv = recv[:100] + '...'
-                        self.to_screen('[debug] Server said: %s' % recv)
+                        self.to_screen(f'[debug] Server said: {recv}')
 
         def ws_main():
             reconnect = False
@@ -128,7 +128,7 @@ def ws_main():
                     if ret is True:
                         return
                 except BaseException as e:
-                    self.to_screen('[%s] %s: Connection error occured, reconnecting after 10 seconds: %s' % ('niconico:live', video_id, str_or_none(e)))
+                    self.to_screen('[{}] {}: Connection error occured, reconnecting after 10 seconds: {}'.format('niconico:live', video_id, str_or_none(e)))
                     time.sleep(10)
                     continue
                 finally:

yt_dlp/downloader/rtmp.py

@@ -180,9 +180,9 @@ def run_rtmpdump(args):
 
         while retval in (RD_INCOMPLETE, RD_FAILED) and not test and not live:
             prevsize = os.path.getsize(encodeFilename(tmpfilename))
-            self.to_screen('[rtmpdump] Downloaded %s bytes' % prevsize)
+            self.to_screen(f'[rtmpdump] Downloaded {prevsize} bytes')
             time.sleep(5.0)  # This seems to be needed
-            args = basic_args + ['--resume']
+            args = [*basic_args, '--resume']
             if retval == RD_FAILED:
                 args += ['--skip', '1']
             args = [encodeArgument(a) for a in args]
@@ -197,7 +197,7 @@ def run_rtmpdump(args):
                 break
         if retval == RD_SUCCESS or (test and retval == RD_INCOMPLETE):
             fsize = os.path.getsize(encodeFilename(tmpfilename))
-            self.to_screen('[rtmpdump] Downloaded %s bytes' % fsize)
+            self.to_screen(f'[rtmpdump] Downloaded {fsize} bytes')
             self.try_rename(tmpfilename, filename)
             self._hook_progress({
                 'downloaded_bytes': fsize,

yt_dlp/downloader/youtube_live_chat.py

@@ -18,7 +18,7 @@ class YoutubeLiveChatFD(FragmentFD):
 
     def real_download(self, filename, info_dict):
         video_id = info_dict['video_id']
-        self.to_screen('[%s] Downloading live chat' % self.FD_NAME)
+        self.to_screen(f'[{self.FD_NAME}] Downloading live chat')
         if not self.params.get('skip_download') and info_dict['protocol'] == 'youtube_live_chat':
             self.report_warning('Live chat download runs until the livestream ends. '
                                 'If you wish to download the video simultaneously, run a separate yt-dlp instance')

yt_dlp/extractor/abc.py

@@ -4,12 +4,11 @@
 import time
 
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
-    dict_get,
     ExtractorError,
-    js_to_json,
+    dict_get,
     int_or_none,
+    js_to_json,
     parse_iso8601,
     str_or_none,
     traverse_obj,
@@ -67,7 +66,7 @@ class ABCIE(InfoExtractor):
             'ext': 'mp4',
             'title': 'WWI Centenary',
             'description': 'md5:c2379ec0ca84072e86b446e536954546',
-        }
+        },
     }, {
         'url': 'https://www.abc.net.au/news/programs/the-world/2020-06-10/black-lives-matter-protests-spawn-support-for/12342074',
         'info_dict': {
@@ -75,7 +74,7 @@ class ABCIE(InfoExtractor):
             'ext': 'mp4',
             'title': 'Black Lives Matter protests spawn support for Papuans in Indonesia',
             'description': 'md5:2961a17dc53abc558589ccd0fb8edd6f',
-        }
+        },
     }, {
         'url': 'https://www.abc.net.au/btn/newsbreak/btn-newsbreak-20200814/12560476',
         'info_dict': {
@@ -86,7 +85,7 @@ class ABCIE(InfoExtractor):
             'upload_date': '20200813',
             'uploader': 'Behind the News',
             'uploader_id': 'behindthenews',
-        }
+        },
     }, {
         'url': 'https://www.abc.net.au/news/2023-06-25/wagner-boss-orders-troops-back-to-bases-to-avoid-bloodshed/102520540',
         'info_dict': {
@@ -95,7 +94,7 @@ class ABCIE(InfoExtractor):
             'ext': 'mp4',
             'description': 'Wagner troops leave Rostov-on-Don and\xa0Yevgeny Prigozhin will move to Belarus under a deal brokered by Belarusian President Alexander Lukashenko to end the mutiny.',
             'thumbnail': 'https://live-production.wcms.abc-cdn.net.au/0c170f5b57f0105c432f366c0e8e267b?impolicy=wcms_crop_resize&cropH=2813&cropW=5000&xPos=0&yPos=249&width=862&height=485',
-        }
+        },
     }]
 
     def _real_extract(self, url):
@@ -126,7 +125,7 @@ def _real_extract(self, url):
                 if mobj is None:
                     expired = self._html_search_regex(r'(?s)class="expired-(?:video|audio)".+?<span>(.+?)</span>', webpage, 'expired', None)
                     if expired:
-                        raise ExtractorError('%s said: %s' % (self.IE_NAME, expired), expected=True)
+                        raise ExtractorError(f'{self.IE_NAME} said: {expired}', expected=True)
                     raise ExtractorError('Unable to extract video urls')
 
             urls_info = self._parse_json(
@@ -164,7 +163,7 @@ def _real_extract(self, url):
                 'height': height,
                 'tbr': bitrate,
                 'filesize': int_or_none(url_info.get('filesize')),
-                'format_id': format_id
+                'format_id': format_id,
             })
 
         return {
@@ -288,13 +287,12 @@ def _real_extract(self, url):
         stream = next(s for s in video_params['playlist'] if s.get('type') in ('program', 'livestream'))
 
         house_number = video_params.get('episodeHouseNumber') or video_id
-        path = '/auth/hls/sign?ts={0}&hn={1}&d=android-tablet'.format(
+        path = f'/auth/hls/sign?ts={int(time.time())}&hn={house_number}&d=android-tablet'
-            int(time.time()), house_number)
         sig = hmac.new(
             b'android.content.res.Resources',
-            path.encode('utf-8'), hashlib.sha256).hexdigest()
+            path.encode(), hashlib.sha256).hexdigest()
         token = self._download_webpage(
-            'http://iview.abc.net.au{0}&sig={1}'.format(path, sig), video_id)
+            f'http://iview.abc.net.au{path}&sig={sig}', video_id)
 
         def tokenize_url(url, token):
             return update_url_query(url, {
@@ -303,7 +301,7 @@ def tokenize_url(url, token):
 
         for sd in ('1080', '720', 'sd', 'sd-low'):
             sd_url = try_get(
-                stream, lambda x: x['streams']['hls'][sd], compat_str)
+                stream, lambda x: x['streams']['hls'][sd], str)
             if not sd_url:
                 continue
             formats = self._extract_m3u8_formats(
@@ -358,7 +356,7 @@ class ABCIViewShowSeriesIE(InfoExtractor):
             'description': 'md5:93119346c24a7c322d446d8eece430ff',
             'series': 'Upper Middle Bogan',
             'season': 'Series 1',
-            'thumbnail': r're:^https?://cdn\.iview\.abc\.net\.au/thumbs/.*\.jpg$'
+            'thumbnail': r're:^https?://cdn\.iview\.abc\.net\.au/thumbs/.*\.jpg$',
         },
         'playlist_count': 8,
     }, {
@@ -386,7 +384,7 @@ class ABCIViewShowSeriesIE(InfoExtractor):
             'description': 'Satirist Mark Humphries brings his unique perspective on current political events for 7.30.',
             'series': '7.30 Mark Humphries Satire',
             'season': 'Episodes',
-            'thumbnail': r're:^https?://cdn\.iview\.abc\.net\.au/thumbs/.*\.jpg$'
+            'thumbnail': r're:^https?://cdn\.iview\.abc\.net\.au/thumbs/.*\.jpg$',
         },
         'playlist_count': 15,
     }]
@@ -398,7 +396,7 @@ def _real_extract(self, url):
             r'window\.__INITIAL_STATE__\s*=\s*[\'"](.+?)[\'"]\s*;',
             webpage, 'initial state')
         video_data = self._parse_json(
-            unescapeHTML(webpage_data).encode('utf-8').decode('unicode_escape'), show_id)
+            unescapeHTML(webpage_data).encode().decode('unicode_escape'), show_id)
         video_data = video_data['route']['pageData']['_embedded']
 
         highlight = try_get(video_data, lambda x: x['highlightVideo']['shareUrl'])

yt_dlp/extractor/abcnews.py

@@ -58,7 +58,7 @@ def _real_extract(self, url):
         display_id = mobj.group('display_id')
         video_id = mobj.group('id')
         info_dict = self._extract_feed_info(
-            'http://abcnews.go.com/video/itemfeed?id=%s' % video_id)
+            f'http://abcnews.go.com/video/itemfeed?id={video_id}')
         info_dict.update({
             'id': video_id,
             'display_id': display_id,

yt_dlp/extractor/abcotvs.py

@@ -1,5 +1,4 @@
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
     dict_get,
     int_or_none,
@@ -57,11 +56,11 @@ def _real_extract(self, url):
         data = self._download_json(
             'https://api.abcotvs.com/v2/content', display_id, query={
                 'id': video_id,
-                'key': 'otv.web.%s.story' % station,
+                'key': f'otv.web.{station}.story',
                 'station': station,
             })['data']
         video = try_get(data, lambda x: x['featuredMedia']['video'], dict) or data
-        video_id = compat_str(dict_get(video, ('id', 'publishedKey'), video_id))
+        video_id = str(dict_get(video, ('id', 'publishedKey'), video_id))
         title = video.get('title') or video['linkText']
 
         formats = []

yt_dlp/extractor/abematv.py

@@ -12,20 +12,21 @@
 import urllib.request
 import urllib.response
 import uuid
-from ..utils.networking import clean_proxies
+
 from .common import InfoExtractor
 from ..aes import aes_ecb_decrypt
 from ..utils import (
     ExtractorError,
+    OnDemandPagedList,
     bytes_to_intlist,
     decode_base_n,
     int_or_none,
     intlist_to_bytes,
-    OnDemandPagedList,
     time_seconds,
     traverse_obj,
     update_url_query,
 )
+from ..utils.networking import clean_proxies
 
 
 def add_opener(ydl, handler):  # FIXME: Create proper API in .networking
@@ -65,8 +66,8 @@ def _get_videokey_from_ticket(self, ticket):
             query={'t': media_token},
             data=json.dumps({
                 'kv': 'a',
-                'lt': ticket
+                'lt': ticket,
-            }).encode('utf-8'),
+            }).encode(),
             headers={
                 'Content-Type': 'application/json',
             })
@@ -76,7 +77,7 @@ def _get_videokey_from_ticket(self, ticket):
 
         h = hmac.new(
             binascii.unhexlify(self.HKEY),
-            (license_response['cid'] + self.ie._DEVICE_ID).encode('utf-8'),
+            (license_response['cid'] + self.ie._DEVICE_ID).encode(),
             digestmod=hashlib.sha256)
         enckey = bytes_to_intlist(h.digest())
 
@@ -102,11 +103,11 @@ class AbemaTVBaseIE(InfoExtractor):
 
     @classmethod
     def _generate_aks(cls, deviceid):
-        deviceid = deviceid.encode('utf-8')
+        deviceid = deviceid.encode()
         # add 1 hour and then drop minute and secs
         ts_1hour = int((time_seconds() // 3600 + 1) * 3600)
         time_struct = time.gmtime(ts_1hour)
-        ts_1hour_str = str(ts_1hour).encode('utf-8')
+        ts_1hour_str = str(ts_1hour).encode()
 
         tmp = None
 
@@ -118,7 +119,7 @@ def mix_once(nonce):
 
         def mix_tmp(count):
             nonlocal tmp
-            for i in range(count):
+            for _ in range(count):
                 mix_once(tmp)
 
         def mix_twist(nonce):
@@ -159,7 +160,7 @@ def _get_device_token(self):
             data=json.dumps({
                 'deviceId': self._DEVICE_ID,
                 'applicationKeySecret': aks,
-            }).encode('utf-8'),
+            }).encode(),
             headers={
                 'Content-Type': 'application/json',
             })
@@ -179,7 +180,7 @@ def _get_media_token(self, invalidate=False, to_show=True):
                 'osLang': 'ja_JP',
                 'osTimezone': 'Asia/Tokyo',
                 'appId': 'tv.abema',
-                'appVersion': '3.27.1'
+                'appVersion': '3.27.1',
             }, headers={
                 'Authorization': f'bearer {self._get_device_token()}',
             })['token']
@@ -201,8 +202,8 @@ def _perform_login(self, username, password):
             f'https://api.abema.io/v1/auth/{ep}', None, note='Logging in',
             data=json.dumps({
                 method: username,
-                'password': password
+                'password': password,
-            }).encode('utf-8'), headers={
+            }).encode(), headers={
                 'Authorization': f'bearer {self._get_device_token()}',
                 'Origin': 'https://abema.tv',
                 'Referer': 'https://abema.tv/',
@@ -343,7 +344,7 @@ def _real_extract(self, url):
 
         description = self._html_search_regex(
             (r'<p\s+class="com-video-EpisodeDetailsBlock__content"><span\s+class=".+?">(.+?)</span></p><div',
-             r'<span\s+class=".+?SlotSummary.+?">(.+?)</span></div><div',),
+             r'<span\s+class=".+?SlotSummary.+?">(.+?)</span></div><div'),
             webpage, 'description', default=None, group=1)
         if not description:
             og_desc = self._html_search_meta(

yt_dlp/extractor/acast.py

@@ -67,7 +67,7 @@ class ACastIE(ACastBaseIE):
             'display_id': '2.raggarmordet-rosterurdetforflutna',
             'season_number': 4,
             'season': 'Season 4',
-        }
+        },
     }, {
         'url': 'http://embed.acast.com/adambuxton/ep.12-adam-joeschristmaspodcast2015',
         'only_matching': True,
@@ -93,13 +93,13 @@ class ACastIE(ACastBaseIE):
             'series': 'Democracy Sausage with Mark Kenny',
             'timestamp': 1684826362,
             'description': 'md5:feabe1fc5004c78ee59c84a46bf4ba16',
-        }
+        },
     }]
 
     def _real_extract(self, url):
         channel, display_id = self._match_valid_url(url).groups()
         episode = self._call_api(
-            '%s/episodes/%s' % (channel, display_id),
+            f'{channel}/episodes/{display_id}',
             display_id, {'showInfo': 'true'})
         return self._extract_episode(
             episode, self._extract_show_info(episode.get('show') or {}))
@@ -130,7 +130,7 @@ class ACastChannelIE(ACastBaseIE):
 
     @classmethod
     def suitable(cls, url):
-        return False if ACastIE.suitable(url) else super(ACastChannelIE, cls).suitable(url)
+        return False if ACastIE.suitable(url) else super().suitable(url)
 
     def _real_extract(self, url):
         show_slug = self._match_id(url)

yt_dlp/extractor/acfun.py

@@ -3,10 +3,10 @@
     float_or_none,
     format_field,
     int_or_none,
-    str_or_none,
-    traverse_obj,
     parse_codecs,
     parse_qs,
+    str_or_none,
+    traverse_obj,
 )
 
 
@@ -25,7 +25,7 @@ def _extract_metadata(self, video_id, video_info):
                     'width': int_or_none(video.get('width')),
                     'height': int_or_none(video.get('height')),
                     'tbr': float_or_none(video.get('avgBitrate')),
-                    **parse_codecs(video.get('codecs', ''))
+                    **parse_codecs(video.get('codecs', '')),
                 })
 
         return {
@@ -77,7 +77,7 @@ class AcFunVideoIE(AcFunVideoBaseIE):
             'comment_count': int,
             'thumbnail': r're:^https?://.*\.(jpg|jpeg)',
             'description': 'md5:67583aaf3a0f933bd606bc8a2d3ebb17',
-        }
+        },
     }]
 
     def _real_extract(self, url):

yt_dlp/extractor/adn.py

@@ -7,21 +7,20 @@
 
 from .common import InfoExtractor
 from ..aes import aes_cbc_decrypt_bytes, unpad_pkcs7
-from ..compat import compat_b64decode
 from ..networking.exceptions import HTTPError
 from ..utils import (
+    ExtractorError,
     ass_subtitles_timecode,
     bytes_to_intlist,
     bytes_to_long,
-    ExtractorError,
     float_or_none,
     int_or_none,
     intlist_to_bytes,
     long_to_bytes,
     parse_iso8601,
     pkcs1pad,
-    strip_or_none,
     str_or_none,
+    strip_or_none,
     try_get,
     unified_strdate,
     urlencode_postdata,
@@ -111,9 +110,9 @@ def _get_subtitles(self, sub_url, video_id):
 
         # http://animationdigitalnetwork.fr/components/com_vodvideo/videojs/adn-vjs.min.js
         dec_subtitles = unpad_pkcs7(aes_cbc_decrypt_bytes(
-            compat_b64decode(enc_subtitles[24:]),
+            base64.b64decode(enc_subtitles[24:]),
             binascii.unhexlify(self._K + '7fac1178830cfe0c'),
-            compat_b64decode(enc_subtitles[:24])))
+            base64.b64decode(enc_subtitles[:24])))
         subtitles_json = self._parse_json(dec_subtitles.decode(), None, fatal=False)
         if not subtitles_json:
             return None
@@ -136,7 +135,7 @@ def _get_subtitles(self, sub_url, video_id):
                 if start is None or end is None or text is None:
                     continue
                 alignment = self._POS_ALIGN_MAP.get(position_align, 2) + self._LINE_ALIGN_MAP.get(line_align, 0)
-                ssa += os.linesep + 'Dialogue: Marked=0,%s,%s,Default,,0,0,0,,%s%s' % (
+                ssa += os.linesep + 'Dialogue: Marked=0,{},{},Default,,0,0,0,,{}{}'.format(
                     ass_subtitles_timecode(start),
                     ass_subtitles_timecode(end),
                     '{\\a%d}' % alignment if alignment != 2 else '',
@@ -178,7 +177,7 @@ def _perform_login(self, username, password):
 
     def _real_extract(self, url):
         lang, video_id = self._match_valid_url(url).group('lang', 'id')
-        video_base_url = self._PLAYER_BASE_URL + 'video/%s/' % video_id
+        video_base_url = self._PLAYER_BASE_URL + f'video/{video_id}/'
         player = self._download_json(
             video_base_url + 'configuration', video_id,
             'Downloading player config JSON metadata',
@@ -219,12 +218,12 @@ def _real_extract(self, url):
                     links_url, video_id, 'Downloading links JSON metadata', headers={
                         'X-Player-Token': authorization,
                         'X-Target-Distribution': lang,
-                        **self._HEADERS
+                        **self._HEADERS,
                     }, query={
                         'freeWithAds': 'true',
                         'adaptive': 'false',
                         'withMetadata': 'true',
-                        'source': 'Web'
+                        'source': 'Web',
                     })
                 break
             except ExtractorError as e:
@@ -256,7 +255,7 @@ def _real_extract(self, url):
             for quality, load_balancer_url in qualities.items():
                 load_balancer_data = self._download_json(
                     load_balancer_url, video_id,
-                    'Downloading %s %s JSON metadata' % (format_id, quality),
+                    f'Downloading {format_id} {quality} JSON metadata',
                     fatal=False) or {}
                 m3u8_url = load_balancer_data.get('location')
                 if not m3u8_url:
@@ -276,7 +275,7 @@ def _real_extract(self, url):
             self.raise_login_required('This video requires a subscription', method='password')
 
         video = (self._download_json(
-            self._API_BASE_URL + 'video/%s' % video_id, video_id,
+            self._API_BASE_URL + f'video/{video_id}', video_id,
             'Downloading additional video metadata', fatal=False) or {}).get('video') or {}
         show = video.get('show') or {}
 
@@ -320,7 +319,7 @@ def _real_extract(self, url):
             f'{self._API_BASE_URL}video/show/{show_id}', video_show_slug,
             'Downloading episode list', headers={
                 'X-Target-Distribution': lang,
-                **self._HEADERS
+                **self._HEADERS,
             }, query={
                 'order': 'asc',
                 'limit': '-1',

yt_dlp/extractor/adobeconnect.py

@@ -1,8 +1,6 @@
+import urllib.parse
+
 from .common import InfoExtractor
-from ..compat import (
-    compat_parse_qs,
-    compat_urlparse,
-)
 
 
 class AdobeConnectIE(InfoExtractor):
@@ -12,13 +10,13 @@ def _real_extract(self, url):
         video_id = self._match_id(url)
         webpage = self._download_webpage(url, video_id)
         title = self._html_extract_title(webpage)
-        qs = compat_parse_qs(self._search_regex(r"swfUrl\s*=\s*'([^']+)'", webpage, 'swf url').split('?')[1])
+        qs = urllib.parse.parse_qs(self._search_regex(r"swfUrl\s*=\s*'([^']+)'", webpage, 'swf url').split('?')[1])
         is_live = qs.get('isLive', ['false'])[0] == 'true'
         formats = []
         for con_string in qs['conStrings'][0].split(','):
             formats.append({
                 'format_id': con_string.split('://')[0],
-                'app': compat_urlparse.quote('?' + con_string.split('?')[1] + 'flvplayerapp/' + qs['appInstance'][0]),
+                'app': urllib.parse.quote('?' + con_string.split('?')[1] + 'flvplayerapp/' + qs['appInstance'][0]),
                 'ext': 'flv',
                 'play_path': 'mp4:' + qs['streamName'][0],
                 'rtmp_conn': 'S:' + qs['ticket'][0],

yt_dlp/extractor/adobetv.py

@@ -2,13 +2,12 @@
 import re
 
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
+    ISO639Utils,
+    OnDemandPagedList,
     float_or_none,
     int_or_none,
-    ISO639Utils,
     join_nonempty,
-    OnDemandPagedList,
     parse_duration,
     str_or_none,
     str_to_int,
@@ -36,7 +35,7 @@ def _parse_subtitles(self, video_data, url_key):
         return subtitles
 
     def _parse_video_data(self, video_data):
-        video_id = compat_str(video_data['id'])
+        video_id = str(video_data['id'])
         title = video_data['title']
 
         s3_extracted = False
@@ -151,7 +150,7 @@ def _fetch_page(self, display_id, query, page):
         page += 1
         query['page'] = page
         for element_data in self._call_api(
-                self._RESOURCE, display_id, query, 'Download Page %d' % page):
+                self._RESOURCE, display_id, query, f'Download Page {page}'):
             yield self._process_data(element_data)
 
     def _extract_playlist_entries(self, display_id, query):

yt_dlp/extractor/adultswim.py

@@ -91,7 +91,7 @@ def _real_extract(self, url):
   getShowBySlug(slug:"%s") {
     %%s
   }
-}''' % show_path
+}''' % show_path  # noqa: UP031
         if episode_path:
             query = query % '''title
     getVideoBySlug(slug:"%s") {
@@ -128,7 +128,7 @@ def _real_extract(self, url):
             episode_title = title = video_data['title']
             series = show_data.get('title')
             if series:
-                title = '%s - %s' % (series, title)
+                title = f'{series} - {title}'
             info = {
                 'id': video_id,
                 'title': title,
@@ -191,7 +191,7 @@ def _real_extract(self, url):
                 if not slug:
                     continue
                 entries.append(self.url_result(
-                    'http://adultswim.com/videos/%s/%s' % (show_path, slug),
+                    f'http://adultswim.com/videos/{show_path}/{slug}',
                     'AdultSwim', video.get('_id')))
             return self.playlist_result(
                 entries, show_path, show_data.get('title'),

yt_dlp/extractor/aenetworks.py

@@ -73,8 +73,8 @@ def _extract_aen_smil(self, smil_url, video_id, auth=None):
     def _extract_aetn_info(self, domain, filter_key, filter_value, url):
         requestor_id, brand = self._DOMAIN_MAP[domain]
         result = self._download_json(
-            'https://feeds.video.aetnd.com/api/v2/%s/videos' % brand,
+            f'https://feeds.video.aetnd.com/api/v2/{brand}/videos',
-            filter_value, query={'filter[%s]' % filter_key: filter_value})
+            filter_value, query={f'filter[{filter_key}]': filter_value})
         result = traverse_obj(
             result, ('results',
                      lambda k, v: k == 0 and v[filter_key] == filter_value),
@@ -142,7 +142,7 @@ class AENetworksIE(AENetworksBaseIE):
             'skip_download': True,
         },
         'add_ie': ['ThePlatform'],
-        'skip': 'Geo-restricted - This content is not available in your location.'
+        'skip': 'Geo-restricted - This content is not available in your location.',
     }, {
         'url': 'http://www.aetv.com/shows/duck-dynasty/season-9/episode-1',
         'info_dict': {
@@ -171,28 +171,28 @@ class AENetworksIE(AENetworksBaseIE):
         'skip': 'This video is only available for users of participating TV providers.',
     }, {
         'url': 'http://www.fyi.tv/shows/tiny-house-nation/season-1/episode-8',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'http://www.mylifetime.com/shows/project-runway-junior/season-1/episode-6',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'http://www.mylifetime.com/movies/center-stage-on-pointe/full-movie',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'https://watch.lifetimemovieclub.com/movies/10-year-reunion/full-movie',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'http://www.history.com/specials/sniper-into-the-kill-zone/full-special',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'https://www.aetv.com/specials/hunting-jonbenets-killer-the-untold-story/preview-hunting-jonbenets-killer-the-untold-story',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'http://www.history.com/videos/history-of-valentines-day',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'https://play.aetv.com/shows/duck-dynasty/videos/best-of-duck-dynasty-getting-quack-in-shape',
-        'only_matching': True
+        'only_matching': True,
     }]
 
     def _real_extract(self, url):
@@ -209,14 +209,14 @@ def _call_api(self, resource, slug, brand, fields):
   %s(slug: "%s") {
     %s
   }
-}''' % (resource, slug, fields),
+}''' % (resource, slug, fields),  # noqa: UP031
             }))['data'][resource]
 
     def _real_extract(self, url):
         domain, slug = self._match_valid_url(url).groups()
         _, brand = self._DOMAIN_MAP[domain]
         playlist = self._call_api(self._RESOURCE, slug, brand, self._FIELDS)
-        base_url = 'http://watch.%s' % domain
+        base_url = f'http://watch.{domain}'
 
         entries = []
         for item in (playlist.get(self._ITEMS_KEY) or []):
@@ -248,10 +248,10 @@ class AENetworksCollectionIE(AENetworksListBaseIE):
         'playlist_mincount': 12,
     }, {
         'url': 'https://watch.historyvault.com/shows/america-the-story-of-us-2/season-1/list/america-the-story-of-us',
-        'only_matching': True
+        'only_matching': True,
     }, {
         'url': 'https://www.historyvault.com/collections/mysteryquest',
-        'only_matching': True
+        'only_matching': True,
     }]
     _RESOURCE = 'list'
     _ITEMS_KEY = 'items'
@@ -309,7 +309,7 @@ class HistoryTopicIE(AENetworksBaseIE):
         'info_dict': {
             'id': '40700995724',
             'ext': 'mp4',
-            'title': "History of Valentine’s Day",
+            'title': 'History of Valentine’s Day',
             'description': 'md5:7b57ea4829b391995b405fa60bd7b5f7',
             'timestamp': 1375819729,
             'upload_date': '20130806',
@@ -364,6 +364,6 @@ def _real_extract(self, url):
         display_id = self._match_id(url)
         webpage = self._download_webpage(url, display_id)
         player_url = self._search_regex(
-            r'<phoenix-iframe[^>]+src="(%s)' % HistoryPlayerIE._VALID_URL,
+            rf'<phoenix-iframe[^>]+src="({HistoryPlayerIE._VALID_URL})',
             webpage, 'player URL')
         return self.url_result(player_url, HistoryPlayerIE.ie_key())

yt_dlp/extractor/aeonco.py

@@ -16,8 +16,8 @@ class AeonCoIE(InfoExtractor):
             'uploader': 'Semiconductor',
             'uploader_id': 'semiconductor',
             'uploader_url': 'https://vimeo.com/semiconductor',
-            'duration': 348
+            'duration': 348,
-        }
+        },
     }, {
         'url': 'https://aeon.co/videos/dazzling-timelapse-shows-how-microbes-spoil-our-food-and-sometimes-enrich-it',
         'md5': '03582d795382e49f2fd0b427b55de409',
@@ -29,8 +29,8 @@ class AeonCoIE(InfoExtractor):
             'uploader': 'Aeon Video',
             'uploader_id': 'aeonvideo',
             'uploader_url': 'https://vimeo.com/aeonvideo',
-            'duration': 1344
+            'duration': 1344,
-        }
+        },
     }, {
         'url': 'https://aeon.co/videos/chew-over-the-prisoners-dilemma-and-see-if-you-can-find-the-rational-path-out',
         'md5': '1cfda0bf3ae24df17d00f2c0cb6cc21b',

yt_dlp/extractor/afreecatv.py

@@ -55,7 +55,7 @@ def _perform_login(self, username, password):
         if result != 1:
             error = _ERRORS.get(result, 'You have failed to log in.')
             raise ExtractorError(
-                'Unable to login: %s said: %s' % (self.IE_NAME, error),
+                f'Unable to login: {self.IE_NAME} said: {error}',
                 expected=True)
 
 
@@ -227,7 +227,7 @@ def _real_extract(self, url):
                 **traverse_obj(file_element, {
                     'duration': ('duration', {functools.partial(int_or_none, scale=1000)}),
                     'timestamp': ('file_start', {unified_timestamp}),
-                })
+                }),
             })
 
         if traverse_obj(data, ('adult_status', {str})) == 'notLogin':

yt_dlp/extractor/agora.py

@@ -168,7 +168,7 @@ def _real_extract(self, url):
         for ext in ('aac', 'mp3'):
             url_data = self._download_json(
                 f'https://api.podcast.radioagora.pl/api4/getSongUrl?podcast_id={media_id}&device_id={uuid.uuid4()}&ppre=false&audio={ext}',
-                media_id, 'Downloading podcast %s URL' % ext)
+                media_id, f'Downloading podcast {ext} URL')
             # prevents inserting the mp3 (default) multiple times
             if 'link_ssl' in url_data and f'.{ext}' in url_data['link_ssl']:
                 formats.append({
@@ -206,8 +206,8 @@ class TokFMAuditionIE(InfoExtractor):
     }
 
     @staticmethod
-    def _create_url(id):
+    def _create_url(video_id):
-        return f'https://audycje.tokfm.pl/audycja/{id}'
+        return f'https://audycje.tokfm.pl/audycja/{video_id}'
 
     def _real_extract(self, url):
         audition_id = self._match_id(url)

yt_dlp/extractor/airtv.py

@@ -5,7 +5,7 @@
     int_or_none,
     mimetype2ext,
     parse_iso8601,
-    traverse_obj
+    traverse_obj,
 )
 
 
@@ -26,7 +26,7 @@ class AirTVIE(InfoExtractor):
             'view_count': int,
             'thumbnail': 'https://cdn-sp-gcs.air.tv/videos/W/8/W87jcWleSn2hXZN47zJZsQ/b13fc56464f47d9d62a36d110b9b5a72-4096x2160_9.jpg',
             'timestamp': 1664792603,
-        }
+        },
     }, {
         # with youtube_id
         'url': 'https://www.air.tv/watch?v=sv57EC8tRXG6h8dNXFUU1Q',
@@ -54,7 +54,7 @@ class AirTVIE(InfoExtractor):
             'channel': 'Newsflare',
             'duration': 37,
             'upload_date': '20180511',
-        }
+        },
     }]
 
     def _get_formats_and_subtitle(self, json_data, video_id):

yt_dlp/extractor/aitube.py

@@ -22,7 +22,7 @@ class AitubeKZVideoIE(InfoExtractor):
             'timestamp': 1667370519,
             'title': 'Ангел хранитель 1 серия',
             'channel_follower_count': int,
-        }
+        },
     }, {
         # embed url
         'url': 'https://aitube.kz/embed/?id=9291d29b-c038-49a1-ad42-3da2051d353c',

yt_dlp/extractor/aliexpress.py

@@ -1,5 +1,4 @@
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
     float_or_none,
     try_get,
@@ -44,7 +43,7 @@ def _real_extract(self, url):
             'title': title,
             'thumbnail': data.get('coverUrl'),
             'uploader': try_get(
-                data, lambda x: x['followBar']['name'], compat_str),
+                data, lambda x: x['followBar']['name'], str),
             'timestamp': float_or_none(data.get('startTimeLong'), scale=1000),
             'formats': formats,
         }

yt_dlp/extractor/aljazeera.py

@@ -18,7 +18,7 @@ class AlJazeeraIE(InfoExtractor):
             'timestamp': 1636219149,
             'description': 'U sarajevskim naseljima Rajlovac i Reljevo stambeni objekti, ali i industrijska postrojenja i dalje su pod vodom.',
             'upload_date': '20211106',
-        }
+        },
     }, {
         'url': 'https://balkans.aljazeera.net/videos/2021/11/6/djokovic-usao-u-finale-mastersa-u-parizu',
         'info_dict': {
@@ -33,7 +33,7 @@ class AlJazeeraIE(InfoExtractor):
     BRIGHTCOVE_URL_RE = r'https?://players.brightcove.net/(?P<account>\d+)/(?P<player_id>[a-zA-Z0-9]+)_(?P<embed>[^/]+)/index.html\?videoId=(?P<id>\d+)'
 
     def _real_extract(self, url):
-        base, post_type, id = self._match_valid_url(url).groups()
+        base, post_type, display_id = self._match_valid_url(url).groups()
         wp = {
             'balkans.aljazeera.net': 'ajb',
             'chinese.aljazeera.net': 'chinese',
@@ -47,11 +47,11 @@ def _real_extract(self, url):
             'news': 'news',
         }[post_type.split('/')[0]]
         video = self._download_json(
-            f'https://{base}/graphql', id, query={
+            f'https://{base}/graphql', display_id, query={
                 'wp-site': wp,
                 'operationName': 'ArchipelagoSingleArticleQuery',
                 'variables': json.dumps({
-                    'name': id,
+                    'name': display_id,
                     'postType': post_type,
                 }),
             }, headers={
@@ -64,7 +64,7 @@ def _real_extract(self, url):
         embed = 'default'
 
         if video_id is None:
-            webpage = self._download_webpage(url, id)
+            webpage = self._download_webpage(url, display_id)
 
             account, player_id, embed, video_id = self._search_regex(self.BRIGHTCOVE_URL_RE, webpage, 'video id',
                                                                      group=(1, 2, 3, 4), default=(None, None, None, None))
@@ -73,11 +73,11 @@ def _real_extract(self, url):
                 return {
                     '_type': 'url_transparent',
                     'url': url,
-                    'ie_key': 'Generic'
+                    'ie_key': 'Generic',
                 }
 
         return {
             '_type': 'url_transparent',
             'url': f'https://players.brightcove.net/{account}/{player_id}_{embed}/index.html?videoId={video_id}',
-            'ie_key': 'BrightcoveNew'
+            'ie_key': 'BrightcoveNew',
         }

yt_dlp/extractor/allocine.py

@@ -1,5 +1,4 @@
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
     int_or_none,
     qualities,
@@ -95,11 +94,11 @@ def _real_extract(self, url):
             duration = int_or_none(video.get('duration'))
             view_count = int_or_none(video.get('view_count'))
             timestamp = unified_timestamp(try_get(
-                video, lambda x: x['added_at']['date'], compat_str))
+                video, lambda x: x['added_at']['date'], str))
         else:
             video_id = display_id
             media_data = self._download_json(
-                'http://www.allocine.fr/ws/AcVisiondataV5.ashx?media=%s' % video_id, display_id)
+                f'http://www.allocine.fr/ws/AcVisiondataV5.ashx?media={video_id}', display_id)
             title = remove_end(strip_or_none(self._html_extract_title(webpage), ' - AlloCiné'))
             for key, value in media_data['video'].items():
                 if not key.endswith('Path'):

yt_dlp/extractor/allstar.py

@@ -12,7 +12,6 @@
 )
 from ..utils.traversal import traverse_obj
 
-
 _FIELDS = '''
     _id
     clipImageSource
@@ -34,27 +33,27 @@
         video: getClip(clipIdentifier: $id) {
             %s %s
         }
-    }''' % (_FIELDS, _EXTRA_FIELDS),
+    }''' % (_FIELDS, _EXTRA_FIELDS),  # noqa: UP031
     'montage': '''query ($id: String!) {
         video: getMontage(clipIdentifier: $id) {
             %s
         }
-    }''' % _FIELDS,
+    }''' % _FIELDS,  # noqa: UP031
     'Clips': '''query ($page: Int!, $user: String!, $game: Int) {
         videos: clips(search: createdDate, page: $page, user: $user, mobile: false, game: $game) {
             data { %s %s }
         }
-    }''' % (_FIELDS, _EXTRA_FIELDS),
+    }''' % (_FIELDS, _EXTRA_FIELDS),  # noqa: UP031
     'Montages': '''query ($page: Int!, $user: String!) {
         videos: montages(search: createdDate, page: $page, user: $user) {
             data { %s }
         }
-    }''' % _FIELDS,
+    }''' % _FIELDS,  # noqa: UP031
     'Mobile Clips': '''query ($page: Int!, $user: String!) {
         videos: clips(search: createdDate, page: $page, user: $user, mobile: true) {
             data { %s %s }
         }
-    }''' % (_FIELDS, _EXTRA_FIELDS),
+    }''' % (_FIELDS, _EXTRA_FIELDS),  # noqa: UP031
 }
 
 
@@ -122,7 +121,7 @@ class AllstarIE(AllstarBaseIE):
             'uploader_url': 'https://allstar.gg/u/62b8bdfc9021052f7905882d',
             'upload_date': '20230425',
             'view_count': int,
-        }
+        },
     }, {
         'url': 'https://allstar.gg/clip?clip=8LJLY4JKB',
         'info_dict': {
@@ -140,7 +139,7 @@ class AllstarIE(AllstarBaseIE):
             'uploader_url': 'https://allstar.gg/u/62b8bdfc9021052f7905882d',
             'upload_date': '20230702',
             'view_count': int,
-        }
+        },
     }, {
         'url': 'https://allstar.gg/montage?montage=643e64089da7e9363e1fa66c',
         'info_dict': {
@@ -156,7 +155,7 @@ class AllstarIE(AllstarBaseIE):
             'uploader_url': 'https://allstar.gg/u/62b8bdfc9021052f7905882d',
             'upload_date': '20230418',
             'view_count': int,
-        }
+        },
     }, {
         'url': 'https://allstar.gg/montage?montage=RILJMH6QOS',
         'info_dict': {
@@ -172,7 +171,7 @@ class AllstarIE(AllstarBaseIE):
             'uploader_url': 'https://allstar.gg/u/62b8bdfc9021052f7905882d',
             'upload_date': '20230703',
             'view_count': int,
-        }
+        },
     }]
 
     def _real_extract(self, url):
@@ -192,28 +191,28 @@ class AllstarProfileIE(AllstarBaseIE):
             'id': '62b8bdfc9021052f7905882d-clips',
             'title': 'cherokee - Clips',
         },
-        'playlist_mincount': 15
+        'playlist_mincount': 15,
     }, {
         'url': 'https://allstar.gg/u/cherokee?game=730&view=Clips',
         'info_dict': {
             'id': '62b8bdfc9021052f7905882d-clips-730',
             'title': 'cherokee - Clips - 730',
         },
-        'playlist_mincount': 15
+        'playlist_mincount': 15,
     }, {
         'url': 'https://allstar.gg/u/62b8bdfc9021052f7905882d?view=Montages',
         'info_dict': {
             'id': '62b8bdfc9021052f7905882d-montages',
             'title': 'cherokee - Montages',
         },
-        'playlist_mincount': 4
+        'playlist_mincount': 4,
     }, {
         'url': 'https://allstar.gg/profile?user=cherokee&view=Mobile Clips',
         'info_dict': {
             'id': '62b8bdfc9021052f7905882d-mobile',
             'title': 'cherokee - Mobile Clips',
         },
-        'playlist_mincount': 1
+        'playlist_mincount': 1,
     }]
 
     _PAGE_SIZE = 10

yt_dlp/extractor/alphaporno.py

@@ -1,9 +1,9 @@
 from .common import InfoExtractor
 from ..utils import (
-    parse_iso8601,
+    int_or_none,
     parse_duration,
     parse_filesize,
-    int_or_none,
+    parse_iso8601,
 )
 
 
@@ -25,7 +25,7 @@ class AlphaPornoIE(InfoExtractor):
             'tbr': 1145,
             'categories': list,
             'age_limit': 18,
-        }
+        },
     }
 
     def _real_extract(self, url):

yt_dlp/extractor/alsace20tv.py

@@ -12,7 +12,7 @@
 class Alsace20TVBaseIE(InfoExtractor):
     def _extract_video(self, video_id, url=None):
         info = self._download_json(
-            'https://www.alsace20.tv/visionneuse/visio_v9_js.php?key=%s&habillage=0&mode=html' % (video_id, ),
+            f'https://www.alsace20.tv/visionneuse/visio_v9_js.php?key={video_id}&habillage=0&mode=html',
             video_id) or {}
         title = info.get('titre')
 
@@ -24,9 +24,9 @@ def _extract_video(self, video_id, url=None):
                 else self._extract_mpd_formats(fmt_url, video_id, mpd_id=res, fatal=False))
 
         webpage = (url and self._download_webpage(url, video_id, fatal=False)) or ''
-        thumbnail = url_or_none(dict_get(info, ('image', 'preview', )) or self._og_search_thumbnail(webpage))
+        thumbnail = url_or_none(dict_get(info, ('image', 'preview')) or self._og_search_thumbnail(webpage))
         upload_date = self._search_regex(r'/(\d{6})_', thumbnail, 'upload_date', default=None)
-        upload_date = unified_strdate('20%s-%s-%s' % (upload_date[:2], upload_date[2:4], upload_date[4:])) if upload_date else None
+        upload_date = unified_strdate(f'20{upload_date[:2]}-{upload_date[2:4]}-{upload_date[4:]}') if upload_date else None
         return {
             'id': video_id,
             'title': title,

yt_dlp/extractor/altcensored.py

@@ -34,7 +34,7 @@ class AltCensoredIE(InfoExtractor):
             'thumbnail': 'https://archive.org/download/youtube-k0srjLSkga8/youtube-k0srjLSkga8.thumbs/k0srjLSkga8_000925.jpg',
             'view_count': int,
             'categories': ['News & Politics'],
-        }
+        },
     }]
 
     def _real_extract(self, url):