anchor.diff:  { lib
  +, stdenv
   , aiohttp
   , asttokens
   , blinker
  
positive.code:     chalice
      django
      executing
      falcon
      flask
      pure-eval
      rq
      sqlalchemy
      tornado
  
negative.code:   version = "1.5.0";
    format = "setuptools";
  
    src = fetchFromGitHub {
      owner = "getsentry";
      repo = "sentry-python";
      rev = version;
      sha256 = "sha256-hJqopR/kvqU0trniHMOahi3oeIzeMvc74ujmfJ2iG48=";
    };
  
    propagatedBuildInputs = [
  