I have no experience with the Python wrapper Tkinter. But from the error it looks like treectrl isn't installed where Python can find it. It needs to go into Python's "lib" folder or something. Sorry I can't be more help.
I have no experience with the Python wrapper Tkinter. But from the error it looks like treectrl isn't installed where Python can find it. It needs to go into Python's "lib" folder or something. Sorry I can' be more help.