anchor.diff:  
   buildPythonPackage rec {
     pname =  "boto3";
  -  version = "1.7.84";
  +  version = "1.9.36";
   
  -  src = fetchFromGitHub {
  -    owner = "boto";
  -    repo  = "boto3";
  -    rev   = version;
  -    sha256 = "0d9kqjqmnn53p1xpmdbbjxcxv2482yx3vjhxw8izp0mpq58i5c14";
  +  src = fetchPypi {
  +    inherit pname version;
  +    sha256 = "2a9f3809b480803c1b1f28a19c554f1e1ceafd8db994a4236a0843b999ee6c56";
     };
   
     propagatedBuildInputs = [ botocore jmespath s3transfer ] ++ lib.optionals (!isPy3k) [ futures ];
  
positive.code:       services like Amazon S3 and Amazon EC2.
      '';
    };
  }
negative.code: { lib
  , buildPythonPackage
  , fetchPypi
  , botocore
  , jmespath
  , s3transfer
  