anchor.diff:  }:
   
   let
  -  version = "0.27.0";
  +  version = "0.29.0";
   in
   buildPythonPackage {
     name = "M2Crypto-${version}";
  
positive.code:     typing
    ];
  
    meta = with stdenv.lib; {
      maintainers = with maintainers; [
        wkennington
      ];
  
negative.code: { stdenv
  , buildPythonPackage
  , fetchPyPi
  , lib
  , swig
  
  , openssl
  