anchor.diff:      isort
       mccabe
       platformdirs
  +    tomlkit
     ] ++ lib.optionals (pythonOlder "3.11") [
       tomli
     ] ++ lib.optionals (pythonOlder "3.9") [
  
positive.code: 
    dontUseSetuptoolsCheck = true;
  
    # calls executable in one of the tests
    preCheck = ''
      export PATH=$PATH:$out/bin
      export HOME=$TEMPDIR
    '';
  
  
negative.code: , mccabe
  , platformdirs
  , tomli
  , tomlkit
  , typing-extensions
  , GitPython
  , pytest-timeout
  