anchor.diff:  
   buildPythonPackage rec {
     pname = "zulip";
  -  version = "0.8.0";
  +  version = "0.8.1";
   
     disabled = !isPy3k;
   
  
positive.code:     owner = "zulip";
      repo = "python-zulip-api";
      rev = version;
      sha256 = "sha256-gJ+YRJC6wmQzPakApOqytyPy34cS/jjzEZhRIvWUBIQ=";
    };
    sourceRoot = "source/zulip";
  
    propagatedBuildInputs = [
      requests
      matrix-client
      distro
  
      # from requests[security]
      cryptography
  
negative.code: , requests
  , matrix-client
  , distro
  , click
  , cryptography
  , pyopenssl
  , pytestCheckHook
  