anchor.diff:    };
   
   
  +  requests = buildPythonPackage rec {
  +    name = "requests-1.1.0";
  +
  +    src = fetchurl {
  +      url = "http://pypi.python.org/packages/source/r/requests/${name}.tar.gz";
  +      md5 = "a0158815af244c32041a3147ee09abf3";
  +    };
  +
  +    meta = {
  +      description = "Requests is an Apache2 Licensed HTTP library, written in Python, for human beings..";
  +      homepage = http://docs.python-requests.org/en/latest/;
  +    };
  +  };
  +
  +  requests014 = buildPythonPackage rec {
  +    name = "requests-0.14.1";
  +
  +    src = fetchurl {
  +      url = "http://pypi.python.org/packages/source/r/requests/${name}.tar.gz";
  +      md5 = "3de30600072cbc7214ae342d1d08aa46";
  +    };
  +
  +    meta = {
  +      description = "Requests is an Apache2 Licensed HTTP library, written in Python, for human beings..";
  +      homepage = http://docs.python-requests.org/en/latest/;
  +    };
  +  };
  +
  +
     reviewboard = buildPythonPackage rec {
       name = "ReviewBoard-1.6.13";
   
  
positive.code: 
  
    dateutil = buildPythonPackage (rec {
      name = "dateutil-1.5";
  
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/p/python-dateutil/python-${name}.tar.gz";
        sha256 = "02dhw57jf5kjcp7ng1if7vdrbnlpb9yjmz7wygwwvf3gni4766bg";
      };
  
      meta = {
        description = "Powerful extensions to the standard datetime module";
  
negative.code:     };
    });
  
    awscli = buildPythonPackage rec {
      name = "awscli-0.5.0";
  
      src = fetchurl {
        url = https://github.com/aws/aws-cli/archive/0.5.0.tar.gz;
        sha256 = "0smgcisl2p7p2y2i299x7g271kdmgs0hnzngw5030phvh0lq202i";
      };
  
      propagatedBuildInputs = [ argparse botocore ];
  
    };
  
    logilab_astng = buildPythonPackage rec {
      name = "logilab-astng-0.24.1";
  