anchor.diff:    src = fetchPyPi {
       package = "Automat";
       inherit version;
  -    sha256 = "4889ec6763377432ec4db265ad552bbe956768ea3fff39014855308ba79dd7c2";
  +    sha256 = "3c1fd04ecf08ac87b4dd3feae409542e9bf7827257097b2b6ed5692f69d6f6a8";
     };
   
     buildInputs = [
  
positive.code: }:
  
  let
    version = "0.5.0";
  in
  buildPythonPackage {
    name = "Automat-${version}";
  
negative.code: { stdenv
  , buildPythonPackage
  , fetchPyPi
  , lib
  
  , attrs
  , docutils
  