anchor.diff:      "aiohttp_apispec"
     ];
   
  -  # Requires pytest-sanic, currently broken in nixpkgs
  -  doCheck = false;
  -
     meta = with lib; {
       description = "Build and document REST APIs with aiohttp and apispec";
       homepage = "https://github.com/maximdanilchenko/aiohttp-apispec/";
  
positive.code:     webargs
    ];
  
    postPatch = ''
      substituteInPlace requirements.txt \
        --replace "jinja2<3.0" "jinja2"
  
negative.code: , fetchPypi
  , jinja2
  , packaging
  , pytest-aiohttp
  , pytestCheckHook
  , pythonOlder
  , webargs
  }:
  