[pygtk] gtk.TreeView node duplication issues

[Seth Mahoney]

Here's the scenario: I have two gtk.TreeViews that are essentially
handled by the same code.  Attached to each are two columns, one with
toggles (which use a dict for a data store instead of a gtk.TreeStore
for a variety of reasons that I hope aren't pertinent) and the other
with text.  I made the text editable, which means that whenever the text
is changed I need to change the dicts to reflect that change (I don't
think this is related to the problem, just giving some background).  And
the problem: For some reason, one of the treeviews (one which functions
like a listview - there are no child nodes) behaves normally when
edited, but the other one (this one has child nodes) creates a duplicate
node whenever I edit a node (although if the node has children, it the
duplicate node will not have children).  So, for example, if I click on
the first node and rename it to "test", I end up with two nodes named
"test".  This happens whether or not the node I rename has children.
Right now, I'm stumped.  Any suggestions?

Here's the callback that responds to the "text-edited" signal:

	def text_edited_cb(self, text, path, new_text, column):
		#get an iterator
		my_iter = self.model.get_iter(path)
		#update the dict that stores the bool values
		old_text = self.model.get_value(my_iter, 0)
		old_value = self.bool_list[old_text]
		del self.bool_list[old_text]
		self.bool_list.update({new_text : old_value})
		#if there's a secondary list, update it too
		if self.extra_list != None:
			old_extra = self.extra_list[old_text]
			self.extra_list.update({new_text : old_extra})
			del self.extra_list[old_text]
			if self.extra_list[new_text].get_text() == old_text:
				self.extra_list[new_text].set_text(new_text)
		#and, actually change the text
		self.model.set_value(my_iter, 0, new_text)