anchor.diff:      # avoid attempting to use 3 packages not available on nixpkgs
       # (jaraco.apt, jaraco.context, yg.lockfile)
       "cheroot/test/test_wsgi.py"
  +    # requires pyopenssl
  +    "cheroot/test/test_ssl.py"
     ];
   
     pythonImportsCheck = [
  
positive.code: , jaraco_text
  , more-itertools
  , portend
  , pyopenssl
  , pypytools
  , pytest-mock
  , pytestCheckHook
  
negative.code: , setuptools-scm
  , setuptools-scm-git-archive
  , six
  }:
  
  buildPythonPackage rec {
  