anchor.diff:  { lib
   , betamax
   , buildPythonPackage
  +, fetchpatch
   , fetchPypi
   , mock
   , pyopenssl
  
positive.code:     "requests_toolbelt"
    ];
  
    meta = {
      description = "Toolbelt of useful classes and functions to be used with requests";
      homepage = "http://toolbelt.rtfd.org";
      license = lib.licenses.asl20;
      maintainers = with lib.maintainers; [ matthiasbeyer ];
    };
  }
  
negative.code:     pytestCheckHook
    ];
  
    patches = [
      (fetchpatch {
        # Fix collections.abc deprecation warning, https://github.com/requests/toolbelt/pull/246
        name = "fix-collections-abc-deprecation.patch";
        url = "https://github.com/requests/toolbelt/commit/7188b06330e5260be20bce8cbcf0d5ae44e34eaf.patch";
        sha256 = "sha256-pRkG77sNglG/KsRX6JaPgk4QxmmSBXypFRp/vNA3ot4=";
      })
    ];
  
    disabledTests = [
      # https://github.com/requests/toolbelt/issues/306
      "test_no_content_length_header"
      "test_read_file"
      "test_reads_file_from_url_wrapper"
  