I also updated my macports last week and now also have a similar error:
/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-
packages/matplotlib/backends/backend_gtk.py:552:
GtkWarning: gtk_widget_unrealize: assertion `GTK_IS_WIDGET (widget)' failed
self.toolbar.destroy()
Just wondering if anyone has had any luck identifying how to fix it so
python doesn't crash on exiting every time?
Joel