anchor.diff:    version = "21.5.0";
     format = "flit";
   
  -  # sdist is missing conftest.py
     src = fetchFromGitHub {
       owner = "hynek";
       repo = "structlog";
  
positive.code:     sha256 = "0bc5lj0732j0hjq89llgrncyzs6k3aaffvg07kr3la44w0hlrb4l";
    };
  
    checkInputs = [ pytestCheckHook pytest-asyncio pretend freezegun simplejson twisted ];
    propagatedBuildInputs = [ six ];
  
    meta = {
      description = "Painless structural logging";
      homepage = "https://github.com/hynek/structlog";
      license = lib.licenses.asl20;
    };
  }
  
negative.code: , pytest-asyncio
  , pretend
  , freezegun
  , simplejson
  , six
  , pythonAtLeast
  