[pygtk] Signal handlers and hanging references

[John Ehresman]

Tero Saarni wrote:
> I have a python object owning a widget and implementing a signal
> handler, lets say:
> 
>   class MyObject:
>     ...
>     self.button = gtk.Button(title)
>     self.button.connect('clicked', self.on_clicked, None)
>     ...
> 
> Deleting instances of MyObject does not have effect until the signal
> handler is disconnected (either by calling disconnect or by deleting
> self.button). 

Short answer is you probably need to make sure your widget is destroyed 
at the appropriate time.  Otherwise learn about the garbage collector 
and how it works.  Note also that del in python does not delete the 
object, rather it deletes the binding from a variable or attribute name 
to an object (you may or may not know this, it's unclear from your 
problem description).

Cheers,

John