I recently had a problem while trying to set up a Tkinter Canvas widget as a progress bar. Everything seemed to be working, except that at 100% completion the progress bar spanned only about 75% of the canvas width. Eventually I tracked the problem down to the canvas bar 'width' property as read using w=cnvProgess['width']. It turned out the value returned was the original width of the canvas bar, and not the screen width after the canvas had been gridded using 'sticky=W+E'.
Once I realised this it was not a show stopper, as I replaced the grid sticky option with a specific width instruction. But this is a bit less flexible than my original method. Is there any Tkinter command which will return the actual dimensions of a widget which has had the grid sticky option applied? Peter -- http://mail.python.org/mailman/listinfo/python-list
