anchor.diff:      # The `-e` flag disables a few problematic tests.
       # https://github.com/pydata/pandas/issues/11169
       # https://github.com/pydata/pandas/issues/11287
  -    checkPhase = ''
  +    # The test_sql checks fail specifically on python 3.5; see here:
  +    # https://github.com/pydata/pandas/issues/11112
  +    checkPhase = let
  +      testsToSkip = ["test_data" "test_excel" "test_html" "test_json"
  +                     "test_frequencies" "test_frame"
  +                     "test_read_clipboard_infer_excel"] ++
  +                    optional isPy35 "test_sql";
  +    in ''
         runHook preCheck
         # The flag `-A 'not network'` will disable tests that use internet.
         # The `-e` flag disables a few problematic tests.
         ${python.executable} setup.py nosetests -A 'not network' --stop \
  -        -e 'test_data|test_excel|test_html|test_json|test_frequencies|test_frame|test_read_clipboard_infer_excel' --verbosity=3
  +        -e '${concatStringsSep "|" testsToSkip}' --verbosity=3
   
         runHook postCheck
       '';
  
positive.code:       bottleneck
        sqlalchemy9
        lxml
        html5lib
        modules.sqlite3
        beautifulsoup4
      ] ++ optional isDarwin pkgs.darwin.adv_cmds; # provides the locale command
  
negative.code:   cycler = buildPythonPackage rec {
      name = "cycler-${version}";
      version = "0.9.0";
  
      src = pkgs.fetchurl {
        url = "https://pypi.python.org/packages/source/C/Cycler/${name}.tar.gz";
        sha256 = "96dc4ddf27ef62c09990c6196ac1167685e89168042ec0ae4db586de023355bc";
  