[pygtk] Deleting objects inherited from gobject.

[Hrvoje Nikšić]

On Fri, 2008-10-17 at 12:36 +0300, Juho Vuori wrote:
> ob = x()
> del(ob)

It works here (see below), although it prints an error due to
GObject.__del__ not being defined.  Are you using the latest version of
gobject?  At some point it used to be the case that gobjects instances
participated in a cycle, which meant that: a) they were only ever
deallocated by the gc, and b) the ones that defined __del__ were never
collected without special provisions, as described in the gc module's
documentation.  This was changed fairly recently, so you might not have
this behavior yet.

Note that in Python it's usually best to avoid the use of __del__
altogether.  What do you need it for?

$ python
Python 2.5.2 (r252:60911, Jul 31 2008, 17:28:52) 
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import gobject
>>> 
>>> class x(gobject.GObject):
...     def __init__(self):
...         super(x,self).__init__()
...         print 'init x'
...     def __del__(self):
...         print 'del x'
...         super(x,self).__del__()
... 
>>> gobject.type_register(x)
<class '__main__.x'>
>>> ob = x()
init x
>>> del(ob)
del x
Exception exceptions.AttributeError: "'super' object has no attribute
'__del__'" in <bound method x.__del__ of <x object at 0x836589c
(__main__+x at 0x821f7b0)>> ignored