anchor.diff:  }:
   
   let
  -  version = "0.11";
  +  version = "0.11.1";
   in
   buildPythonPackage {
     name = "Flask-${version}";
  
positive.code:   src = fetchPyPi {
      package = "Flask";
      inherit version;
      sha256 = "29a7405a7f0de178232fe48cd9b2a2403083bf03bd34eabe12168863d4cdb493";
    };
  
    propagatedBuildInputs = [
  
negative.code:   ];
  
    meta = with stdenv.lib; {
      description = "Micro webdevelopment framework for Python";
      homepage = http://flask.pocoo.org/;
      licenses = license.bsd3;
      maintainers = with maintainers; [
        codyopel
        wkennington
      ];
      platforms = with platforms;
  