anchor.diff:      werkzeug
     ];
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       description = "Micro webdevelopment framework for Python";
       homepage = http://flask.pocoo.org/;
       licenses = license.bsd3;
  
positive.code: }:
  
  let
    version = "0.12";
  in
  buildPythonPackage {
    name = "Flask-${version}";
  
negative.code: { stdenv
  , buildPythonPackage
  , fetchPyPi
  , lib
  
  , click
  , itsdangerous
  