cannot run pdb with gtk2 reactor

New submission from mrc <[email protected]>:

after an upgrade of pygtk and gtk, is not possible anymore to interrupt the application to enter in the pdb shell. attached a minimalist example to run as twistd plugin:

{{{
$ twistd -b --reactor=gtk2 gtk2hello
}}}

basically after a SIGINT everything (gtk2 main loop and pdb) freeze and must be killed.

== Versions of the parts: ==

{{{
>>> gtk.ver
(2, 20, 0)
>>> gtk.pygtk_version
(2, 16, 0)
>>> import twisted
>>> twisted.__version__
'9.0.0'
>>> import sys
>>> sys.version
'2.5.5 (r255:77872, Feb  2 2010, 00:25:36) \n[GCC 4.4.3]'
>>> 
}}}


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Type     : defect
Component: core
Keywords : 
Priority : normal
Nosy     : 
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http://twistedmatrix.com/trac/ticket/4326