Use six for correct Python2/3 compatibility

mdboom · mdboom · commit 091ef482c1b0 · 2018-02-06T17:28:09.000-05:00
diff --git a/src/jupyter_notebook_gist/config.py b/src/jupyter_notebook_gist/config.py
@@ -2,6 +2,9 @@
 from traitlets.traitlets import Unicode
 
 
+from six import
+
+
 class NotebookGist(LoggingConfigurable):
 
     oauth_client_id = Unicode(
@@ -20,7 +23,7 @@ def __init__(self, *args, **kwargs):
         # update the frontend settings with the currently passed
         # OAUTH client id
         client_id = self.config.NotebookGist.oauth_client_id
-        if not isinstance(client_id, (str, bytes)):
+        if not isinstance(client_id, six.string_types):
             client_id = None
         self.config_manager.update('notebook', {
             'oauth_client_id': client_id,
