[Python-Dev] Pygtk app and hangs. (original) (raw)

jd jdsw2002 at yahoo.com
Wed Sep 19 10:40:30 CEST 2007

Hi I have a non-trivial pygtk running in to hangs/freezes.

Over all here is how program looks like.

gobject.threads_init()

gtk.main within threads_enter/threads_leave

All UI operaions in main threads. Some call backs create UIWorker threads, UI worker thread does some work.. and then do gobkect.idle_add to call a function that updates the UI.

I have a timer uses gobject.timeout_add.

the idle callbacks and timeout call backs are in threads_enter/threads_leave.

I use some lib, that creates its own threads and does socket operations.

Q. Anything I missed, or any suggestions. Is there a comprehensive list/scheme on how to write a MT pygtk app?

Q. I tried to setup debug version 2.5 but it fails with

import gtk File "/usr/lib/python2.5/site-packages/gtk-2.0/gtk/init.py", line 38, in import gobject as _gobject File "/usr/lib/python2.5/site-packages/gtk-2.0/gobject/init.py", line 30, in from _gobject import * ImportError: /usr/lib/python2.5/site-packages/gtk-2.0/gobject/_gobject.so: undefined symbol: PyUnicodeUCS4_FromObject

What special switch do I need to give to the configure while building python ?

Q. I have attached thread dumps. Any input on what might be going ?

Q. Modal dialogboxes event processing happens in the main thread ?

Sorry for sending it to both the list. But the app is pygtk while stack seems fairly clean (other than main thread).

Thanks a ton, in advance. /Jd

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