Check for errors on /verify

[lgg]

in telegram message history:

while in logs:

2018-01-10 04:11:59,686 - TwitterForwarderBot - DEBUG - No new updates found.
2018-01-10 04:12:02,492 - TwitterForwarderBot - DEBUG - Getting updates: [434142446]
None
None
2018-01-10 04:12:03,170 - telegram.ext.dispatcher - ERROR - An uncaught error was raised while processing the update
Traceback (most recent call last):
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/venv/lib/python3.5/site-packages/telegram/ext/dispatcher.py", line 203, in process_update
    handler.handle_update(update, self)
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/venv/lib/python3.5/site-packages/telegram/ext/commandhandler.py", line 86, in handle_update
    return self.callback(dispatcher.bot, update, **optional_args)
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/util.py", line 14, in wrapper
    return f(bot, update, *args, **kwargs)
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/commands.py", line 268, in cmd_verify
    cmd_set_timezone(bot, update, [tz_name])
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/util.py", line 14, in wrapper
    return f(bot, update, *args, **kwargs)
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/commands.py", line 298, in cmd_set_timezone
    tz = timezone(tz_name)
  File "/home/webadmin/www/console/telegram/chat-crypto/telegram-twitter-forwarder-bot/venv/lib/python3.5/site-packages/pytz/__init__.py", line 173, in timezone
    if zone.upper() == 'UTC':
AttributeError: 'NoneType' object has no attribute 'upper'
2018-01-10 04:12:12,503 - TwitterForwarderBot - DEBUG - No new updates found.

[lgg]

To avoid this error you need to change default timezone in Twitter settings, otherwise Twitter API won't return time_zone parameter when

telegram-twitter-forwarder-bot/commands.py

Line 262 in bbb75b5

tz_name = settings.get("time_zone", {}).get("tzinfo_name")

Settings list before changing default timezone:

Settings list after changing default timezone:

---

I think we need to add this to Readme or check in code for 'time_zone' parameter existence

[franciscod]

I've updated pytz alongside other dependencies. Maybe this is fixed now.