Add OAuth2 support for end users (i.e. 3-legged flow with the browser).

third_party/oauth2client/multistore_file.py

 # Copyright 2011 Google Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 32 matching lines @@
 
 __author__ = 'jbeda@google.com (Joe Beda)'
 
 import base64
 import errno
 import logging
 import os
 import threading
 
 from anyjson import simplejson
-from oauth2client.client import Storage as BaseStorage
-from oauth2client.client import Credentials
-from oauth2client import util
+from .client import Storage as BaseStorage
+from .client import Credentials
+from . import util
 from locked_file import LockedFile
 
 logger = logging.getLogger(__name__)
 
 # A dict from 'filename'->_MultiStore instances
 _multistores = {}
 _multistores_lock = threading.Lock()
 
 
 class Error(Exception):
@@ skipping 390 matching lines @@
 
     This Storage is a 'view' into the multistore.
 
     Args:
       key: The key used to retrieve the credential
 
     Returns:
       A Storage object that can be used to get/set this cred
     """
     return self._Storage(self, key)