anchor.diff:  
       src = pkgs.fetchurl {
         url = "mirror://pypi/t/thumbor/${name}.tar.gz";
  -      sha256 = "57b0d7e261e792b2e2c53a79c3d8c722964003d1828331995dc3491dc67db7d8";
  -    };
  +      sha256 = "0787245x4yci34cdfc9xaxhds0lv60476qgp132pwa78hrpc9m31";
  +    };
  +
  +    prePatch = ''
  +      substituteInPlace setup.py \
  +        --replace '"argparse",' ""
  +    '';
   
       meta = {
         description = "A smart imaging service";
         homepage = https://github.com/globocom/thumbor/wiki;
         license = licenses.mit;
  -      broken = true;
       };
     };
   
  
positive.code:       tornado
        pycrypto
        pycurl
        pillow
        derpconf
        python_magic
  
negative.code: 
    thumbor = buildPythonPackage rec {
      name = "thumbor-${version}";
      version = "6.3.2";
  
      disabled = ! isPy27;
  
  