Eric,
It turns out that the key difference is in pygobject. I was using
2.13.2 (from source) here at work, and Ubuntu Feisty currently ships
2.12.3. 2.13.x is an unstable branch, of course, (gnome-related
packages follow the even/odd versioning scheme), so I shouldn't have
been using it to test with in the first place...
...however, there are only about 40 patches between 2.12.3 and 2.13.2.
Two of them are very crucial memory leak patches:
http://svn.gnome.org/viewcvs/pygobject?limit_changes=100&view=revision&revision=653
http://svn.gnome.org/viewcvs/pygobject?limit_changes=100&view=revision&revision=642
When I patched 2.12.3 against these patches, the Python object leaks go
away. There may be workarounds matplotlib can make -- I'll look into
that now. Hopefully the workarounds won't be too problematic -- I would
hate to complicate matplotlib code for the sake of something that should
resolve itself in the next Gnome release cycle...
I updated the memleak_gui.py script to display the pygobject/glib
versions as well when testing the gtk backend.
Cheers,
Mike
Michael Droettboom wrote:
> Eric Firing wrote:
>
>> Michael Droettboom wrote:
>>
>>> Interesting...
>>>
>>> When you get a chance, would you mind running the attached script?
>>> This is how I was finding object leaks before. It takes a single
>>> commandline argument that is the number of iterations. Can you send
>>> me the outputs from 1 and 2 iterations? That way we should be able
>>> to see what type of object is being leaked, which is a good first step.
>>>
>> And here is the result of the script modified for gtk:
>>
>> [EMAIL PROTECTED]:~/programs/py/mpl/tests$ python memleak_gui_gtk.py 1
>> 55352 55417
>> *** <type 'gtk.gdk.Colormap'>
>> *** <class 'matplotlib.backends.backend_gtk.FileChooserDialog'>
>> *** <class 'gtk._gtk.WidgetFlags'>
>> *** <class 'gtk._gtk.WidgetFlags'>
>> *** <type 'gtk.gdk.Window'>
>> *** <class 'matplotlib.backends.backend_gtk.FigureCanvasGTK'>
>> *** <class 'matplotlib.backends.backend_gtk.NavigationToolbar2GTK'>
>> *** <type 'gtk.gdk.Pixmap'>
>> *** <type 'gtk.Tooltips'>
>> *** <type 'gtk.Label'>
>> *** <type 'gtk.Window'>
>> *** <type 'gtk.VBox'>
>>
>> uncollectable list: []
>>
>> [EMAIL PROTECTED]:~/programs/py/mpl/tests$ python memleak_gui_gtk.py 2
>> 55352 55421
>> *** <type 'gtk.gdk.Colormap'>
>> *** <class 'matplotlib.backends.backend_gtk.FileChooserDialog'>
>> *** <class 'gtk._gtk.WidgetFlags'>
>> *** <class 'gtk._gtk.WidgetFlags'>
>> *** <type 'gtk.gdk.Window'>
>> *** <class 'matplotlib.backends.backend_gtk.FileChooserDialog'>
>> *** <class 'gtk._gtk.WidgetFlags'>
>> *** <class 'gtk._gtk.WidgetFlags'>
>> *** <type 'gtk.gdk.Window'>
>> *** <class 'matplotlib.backends.backend_gtk.FigureCanvasGTK'>
>> *** <class 'matplotlib.backends.backend_gtk.NavigationToolbar2GTK'>
>> *** <type 'gtk.gdk.Pixmap'>
>> *** <type 'gtk.Tooltips'>
>> *** <type 'gtk.Label'>
>> *** <type 'gtk.Window'>
>> *** <type 'gtk.VBox'>
>>
>> uncollectable list: []
>>
>> Eric
>>
>>
>
>
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