anchor.diff:      propagatedBuildInputs = with self; [ self.coverage ];
     };
   
  +  crcmod = buildPythonPackage rec {
  +    name = "crcmod-1.7";
  +    src = pkgs.fetchurl {
  +      url = https://pypi.python.org/packages/source/c/crcmod/crcmod-1.7.tar.gz;
  +      sha256 = "07k0hgr42vw2j92cln3klxka81f33knd7459cn3d8aszvfh52w6w";
  +    };
  +    meta = {
  +      description = "Python module for generating objects that compute the Cyclic Redundancy Check (CRC)";
  +      homepage = http://crcmod.sourceforge.net/;
  +      license = stdenv.lib.licenses.mit;
  +    };
  +  };
  +
     cython = buildPythonPackage rec {
       name = "Cython-0.20.1";
   
  
positive.code:     };
    };
  
  
    quantities = buildPythonPackage rec {
      name = "quantities-0.10.1";
  
negative.code:     };
    };
  
    boto-230 = buildPythonPackage rec {
      name = "boto-2.30.0";
      src = pkgs.fetchurl {
        url = https://pypi.python.org/packages/source/b/boto/boto-2.30.0.tar.gz;
        sha256 = "12gl8azmx1vv8dbv9jhnsbhjpc2dd1ng0jlbcg734k6ggwq1h6hh";
      };
      doCheck = false;
      meta = {
        homepage = https://github.com/boto/boto;
        license = licenses.mit;
        description = "Python interface to Amazon Web Services";
      };
    };
  
  
    botocore = buildPythonPackage rec {
      version = "0.33.0";
  