anchor.diff:  
   buildPythonPackage rec {
     pname = "cherrypy";
  -  version = "17.4.1";
  +  version = "17.4.2";
   
     src = fetchPypi {
       pname = "CherryPy";
       inherit version;
  -    sha256 = "1kl17anzz535jgkn9qcy0c2m0zlafph0iv7ph3bb9mfrs2bgvagv";
  +    sha256 = "ef1619ad161f526745d4f0e4e517753d9d985814f1280e330661333d2ba05cdf";
     };
   
     propagatedBuildInputs = [
  
positive.code:   ];
  
    checkPhase = ''
      pytest
    '';
  
    meta = with lib; {
      homepage = https://www.cherrypy.org;
      description = "A pythonic, object-oriented HTTP framework";
      license = licenses.bsd3;
  
negative.code: { stdenv, buildPythonPackage, fetchPypi
  , setuptools_scm
  , cheroot, contextlib2, portend, routes, six, zc_lockfile
  , backports_unittest-mock, objgraph, pathpy, pytest, pytestcov, backports_functools_lru_cache, requests_toolbelt
  