anchor.diff:      };
     };
   
  +
  +  thumbor = pythonPackages.buildPythonPackage rec {
  +    name = "thumbor-4.0.4";
  +
  +    propagatedBuildInputs = [
  +                    tornado
  +                    pycrypto
  +                    pycurl
  +                    pillow
  +                    derpconf
  +                    python_magic
  +                    thumborPexif
  +                    (pkgs.opencv.override {
  +                        gtk = null;
  +                        glib = null;
  +                        xineLib = null;
  +                        gstreamer = null;
  +                        ffmpeg = null;
  +                    }) ];
  +
  +    src = fetchurl {
  +      url = "https://pypi.python.org/packages/source/t/thumbor/${name}.tar.gz";
  +      md5 = "cf639a1cc57ee287b299ace450444408";
  +    };
  +
  +    meta = {
  +      description = "Thumbor is a smart imaging service. It enables on-demand crop, resizing and flipping of images.";
  +      homepage = https://github.com/globocom/thumbor/wiki;
  +      license = licenses.mit;
  +    };
  +  };
  +
  +  thumborPexif = pythonPackages.buildPythonPackage rec {
  +    name = "thumbor-pexif-0.14";
  +
  +    src = fetchurl {
  +      url = "https://pypi.python.org/packages/source/t/thumbor-pexif/${name}.tar.gz";
  +      md5 = "fb4cdb60f4a0bead5193fb483ccd3430";
  +    };
  +
  +    meta = {
  +      description = "Module to parse and edit the EXIF data tags in a JPEG image";
  +      homepage = http://www.benno.id.au/code/pexif/;
  +      license = licenses.mit;
  +    };
  +  };
  +
   }); in pythonPackages
  
positive.code:     propagatedBuildInputs = [ pythonPackages.pycurl ];
  
    });
  
    logilab_astng = buildPythonPackage rec {
      name = "logilab-astng-0.24.3";
  
negative.code:     };
    };
  
    derpconf = pythonPackages.buildPythonPackage rec {
      name = "derpconf-0.4.9";
  
      propagatedBuildInputs = [ six ];
  
      src = fetchurl {
        url = "https://pypi.python.org/packages/source/d/derpconf/${name}.tar.gz";
        md5 = "a164807d7bf0c4adf1de781305f29b82";
      };
  
      meta = {
        description = "derpconf abstracts loading configuration files for your app";
        homepage = https://github.com/globocom/derpconf;
        license = licenses.mit;
      };
    };
  
    dpkt = buildPythonPackage rec {
      name = "dpkt-1.8";
  