Gtk2Reactor object has no attribute simulate

[Calum]

Seeing the following on Ubuntu 12.04 and it prevents showing the Connection Manager. Using a try-except would workaround it but wonder if it is actually still required based upon source code comments and the error.

Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 413, in fireEvent
    DeferredList(beforeResults).addCallback(self._continueFiring)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 298, in addCallback
    callbackKeywords=kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 287, in addCallbacks
    self._runCallbacks()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 545, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 426, in _continueFiring
    callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/deluge/ui/gtkui/gtkui.py", line 336, in _on_reactor_start
    self.__start_non_classic()
  File "/usr/lib/python2.7/dist-packages/deluge/ui/gtkui/gtkui.py", line 376, in __start_non_classic
    reactor.simulate()
exceptions.AttributeError: 'Gtk2Reactor' object has no attribute 'simulate'

[andar]

What version of Twisted?

[Calum]

Twisted 11.1

[andar]

Hmm.. The latest version of Twisted still has this method in Gtk2Reactor, so I'm not really sure why you're getting this error.

I wonder if Ubuntu is doing some weird patching of Twisted?

We could probably add a try/except around this call.. As it stands, it's a hack anyways to work around something in the Gtk2Reactor not working properly, although I don't remember exactly what ;)

From gtkui.py:

            if self.config["show_connection_manager_on_start"]:
                # XXX: We need to call a simulate() here, but this could be a bug in twisted
                reactor.simulate()
                self.connectionmanager.show()

[John Garland]

Actually it was renamed in twisted 12; maybe cas got his versions confused?

I've committed a fix in ​http://git.deluge-torrent.org/deluge/commit/?h=1.3-stable&id=17cac01673d479ecb4f4dbbc16a5c82bc19907e9 so that it will be in 1.3.6.

[andrewsomething]

Just a note, Ubuntu 12.04 does use Twisted 11, but they have backported some gtk2reactor changes in a patch:

twisted (11.1.0-1ubuntu1) precise; urgency=low

• debian/patches/00_gi_gtk3reactor.patch:
  • Backport gireactor/gtk3reactor and gtk2reactor refactor from svn (LP: #571648, LP: #851187)

-- Rodney Dawes <​rodney.dawes@ubuntu.com> Wed, 15 Feb 2012 21:39:07 -0500