anchor.diff:  
     propagatedBuildInputs = [
       backcall
  -    black
       decorator
       jedi
       matplotlib-inline
  
positive.code: # Runtime dependencies
  , appnope
  , backcall
  , black
  , decorator
  , jedi
  , matplotlib-inline
  
negative.code: 
    meta = with lib; {
      description = "IPython: Productive Interactive Computing";
      homepage = "https://ipython.org/";
      license = licenses.bsd3;
      maintainers = with maintainers; [ bjornfor fridh ];
    };
  