anchor.diff:  , fetchPypi
   , autopage
   , cmd2
  +, importlib-metadata
   , installShellFiles
   , openstackdocstheme
   , pbr
  
positive.code: 
  buildPythonPackage rec {
    pname = "cliff";
    version = "3.10.1";
  
    src = fetchPypi {
      inherit pname version;
      sha256 = "sha256-BFruPzxkRxll161QfOhHSk4vIIFfu1QFp3D4WWoqAKA=";
    };
  
    postPatch = ''
  
negative.code:   propagatedBuildInputs = [
      autopage
      cmd2
      importlib-metadata
      pbr
      prettytable
      pyparsing
  