When getting timeline: TypeError: 'NoneType' object is unsubscriptable

[James Ogley]

Using latest trunk, this occurs (output from gwibber-service -do):

Gwibber Dispatcher: ERROR <twitter:receive> Operation failed
Gwibber Dispatcher: DEBUG Traceback:
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/gwibber/microblog/dispatcher.py", line 71, in perform_operation
    message_data = PROTOCOLS[account["service"]].Client(account)(opname, **args)
  File "/usr/lib64/python2.6/site-packages/gwibber/microblog/twitter.py", line 193, in __call__
    return getattr(self, opname)(**args)
  File "/usr/lib64/python2.6/site-packages/gwibber/microblog/twitter.py", line 196, in receive
    return self._get("statuses/home_timeline.json", count=count, since_id=since)
  File "/usr/lib64/python2.6/site-packages/gwibber/microblog/twitter.py", line 184, in _get
    if parse: return [getattr(self, "_%s" % parse)(m) for m in data]
  File "/usr/lib64/python2.6/site-packages/gwibber/microblog/twitter.py", line 98, in _message
    m = self._common(data)
  File "/usr/lib64/python2.6/site-packages/gwibber/microblog/twitter.py", line 64, in _common
    m["mid"] = str(data["id"])
TypeError: 'NoneType' object is unsubscriptable

[B. Oppa (0tonyforster0)]

Same here - twitter:receive fails with the exact same TypeError: 'NoneType' object is unsubscriptable.

[Captain Chaos (launchpad-chaos)]

Same is happening for me, and I'm not using the latest trunk, but the latest official version from the Ubuntu repositories. I'm on Lucid 64-bit and the version of Gwibber is 2.30.1-0ubuntu1. Since this morning, Twitter message are no longer being shown by Gwibber, and the exact same message as listed above is displayed by gwibber-service.

[Charlesschaefer (charlesschaefer)]

I've read the Twitter class code and changed some things trying to the discover the cause of the bug. I think there's something new with twitter (i don't know how is the tech spec about the json format returned by twitter), but for some messages, theres a null value in the returned json.

I've corrected this bug adding this little hack to twitter.py, at line 78:

def _message(self, data): # this line already exists
    if type(data) == type(None) :
       return []

[Charlesschaefer (charlesschaefer)]

I've forgot to say that my gwibber version is 2.30.1-0ubuntu.

[James Ogley (riggwelter)]

I can confirm that the change in comment #3 fixes this.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gwibber - 2.31.91-0ubuntu1

---------------
gwibber (2.31.91-0ubuntu1) maverick; urgency=low

  * New upstream release
    - Port twitter service to OAuth, basic auth is no longer
      supported (LP: #627565)
    - Delay setting the position of the vertical splitter
    - Fix PerformOp for single operation, including delete and
      like (LP: #616798)
    - Make the string for the Translate action i18n
      friendly (Vadim Rutkovsky)
    - Convert identi.ca groups (!) to hashtags (#) for re-denting if
      global_retweet is true (Vadim Rutkovsky) (LP: #539786)
    - Handle null responses gracefully (James Ogley) (LP: #623309)
    - recognize valid unicode URLs (LP: #333390)
    - Don't crash if there is an invalid value for a preference (LP: #623335)
  * debian/gwibber-service.install
    - Install files needed for twitter oauth
 -- Ken VanDine <email address hidden> Mon, 23 Aug 2010 23:35:05 -0400