Gdrive optional

cps/gdriveutils.py

@@ -1,5 +1,8 @@
-from pydrive.auth import GoogleAuth
+try:
-from pydrive.drive import GoogleDrive
+    from pydrive.auth import GoogleAuth
+    from pydrive.drive import GoogleDrive
+except ImportError:
+    pass
 import os, time
 
 from ub import config

cps/helper.py

@@ -35,7 +35,10 @@ import shutil
 import requests
 import zipfile
 from tornado.ioloop import IOLoop
-import gdriveutils as gd
+try:
+    import gdriveutils as gd
+except ImportError:
+    pass
 import web
 
 try:

cps/web.py

@@ -1,6 +1,11 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-from pydrive.auth import GoogleAuth
+try:
+    from pydrive.auth import GoogleAuth
+    from googleapiclient.errors import HttpError
+    gdrive_support= True
+except ImportError:
+    gdrive_support=False
 
 import mimetypes
 import logging
@@ -56,8 +61,6 @@ import io
 import hashlib
 import threading
 
-from googleapiclient.errors import HttpError
-
 from tornado import version as tornadoVersion
 
 try: