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default.nix

@@ -3,5 +3,31 @@ let
 in
 
 self: super: rec {
+  python = super.python.override {
+    packageOverrides = python-self: python-super: {
+      strawberry_graphql = python-super.buildPythonPackage rec {
+        pname = "strawberry-graphql";
+        version = "0.114.5";
+        format = "pyproject";
+        patches = [
+          ./strawberry-graphql.patch
+        ];
+        propagatedBuildInputs = with self.python39Packages [
+          typing-extensions
+          graphql-core
+          python-multipart
+          python-dateutil
+          flask
+          pydantic
+          pygments
+          poetry
+        ];
+        src = fetchPypi {
+          inherit pname version;
+          sha256 = "b6e007281cf29a66eeba66a512744853d8aa53b4ca2525befb6f350bb7b24df6";
+        };
+      };
+    };
+  };
   selfprivacy-api = super.callPackage ./pkgs/selfprivacy-api {};
 }

pkgs/selfprivacy-api/default.nix

@@ -4,42 +4,6 @@ let
   inherit (nixpkgs) pkgs;
   inherit pythonPkgs;
 
-  strawberry-graphql =
-    { buildPythonPackage
-    , fetchPypi
-    , flask
-    , pydantic
-    , typing-extensions
-    , graphql-core
-    , python-multipart
-    , python-dateutil
-    , pygments
-    , poetry
-    }:
-    buildPythonPackage rec {
-      pname = "strawberry-graphql";
-      version = "0.114.5";
-      format = "pyproject";
-      patches = [
-        ./strawberry-graphql.patch
-      ];
-      propagatedBuildInputs = [
-        typing-extensions
-        graphql-core
-        python-multipart
-        python-dateutil
-        flask
-        pydantic
-        pygments
-        poetry
-      ];
-      src = fetchPypi {
-        inherit pname version;
-        sha256 = "b6e007281cf29a66eeba66a512744853d8aa53b4ca2525befb6f350bb7b24df6";
-      };
-    };
-
-
   selfprivacy-api =
     { buildPythonPackage
     , fetchPypi
@@ -81,7 +45,7 @@ let
         gevent
         mnemonic
         pydantic
-        (pythonPkgs.callPackage strawberry-graphql { })
+        strawberry_graphql
       ];
       meta = {
         description = ''