let
  pkgs = import <nixpkgs> { };
in

self: super: rec {
  python39 = super.python39.override {
    packageOverrides = python-self: python-super: {
      strawberry_graphql = python-super.buildPythonPackage rec {
        pname = "strawberry-graphql";
        version = "0.123.0";
        format = "pyproject";
        patches = [
          ./strawberry-graphql.patch
        ];
        propagatedBuildInputs = with self.python39Packages; [
          typing-extensions
          # graphql-core
          python-multipart
          python-dateutil
          flask
          pydantic
          pygments
          poetry
          (buildPythonPackage rec {
            pname = "graphql-core";
            version = "3.2.0";
            format = "setuptools";
            src = fetchPypi {
              inherit pname version;
              sha256 = "sha256-huKgvgCL/eGe94OI3opyWh2UKpGQykMcJKYIN5c4A84=";
            };
            checkInputs = [
              pytest-asyncio
              pytest-benchmark
              pytestCheckHook
            ];
            pythonImportsCheck = [
              "graphql"
            ];
          })
        ];
        src = python-super.fetchPypi {
          inherit pname version;
          sha256 = "sha256-KsmZ5Xv8tUg6yBxieAEtvoKoRG60VS+iVGV0X6oCExo=";
        };
      };
    };
  };
  pythonPackages = python39.pkgs;
  selfprivacy-api = super.callPackage ./pkgs/selfprivacy-api {
    nixpkgs = pkgs;
    pythonPkgs = pythonPackages;
  };
}