anchor.diff:      inherit pname version;
       sha256 = "786b5c38c530d4846aa68a42604f61b4e69a493390e3ca11b88df0fbfdc3ed04";
     };
  +
  +  patches = [
  +    # Python 3.9 ast changes
  +    (fetchpatch {
  +      url = "https://github.com/python-rope/rope/pull/333.patch";
  +      excludes = [ ".github/workflows/main.yml" ];
  +      sha256 = "1gq7n1zs18ndmv0p8jg1h5pawabi1m9m9z2w5hgidvqmpmcziky0";
  +    })
  +  ];
   
     checkInputs = [ nose ];
     checkPhase = ''
  
positive.code:     description = "Python refactoring library";
      homepage = "https://github.com/python-rope/rope";
      maintainers = with maintainers; [ goibhniu ];
      license = licenses.gpl2;
    };
  }
  
negative.code: { lib, buildPythonPackage, fetchPypi, fetchpatch, nose }:
  
  buildPythonPackage rec {
    pname = "rope";
  