wxPython, a GUI Toolkit
As mentioned above, a complete tutorial to wxPython is not ready yet, although one is on its way. Nearly all the widgets supported by wxPython are demonstrated in the demo application that comes with the distribution. Since the examples are concise and to the point, it is possible to learn from them fairly quickly.
At the moment, we are enjoying a growing array of usable tool kits, and I feel wxPython is one of the better ones. Like most things written in Python, programs in wxPython tend to be compact, easy-to-read and maintain and powerful. The range of available widgets doesn't match MFCs (Microsoft foundation classes), but is adequate for most applications. I personally find that this particular tool kit makes the RAD (rapid application development) concept finally available to Linux. The fact that applications written in this framework also work on Windows will be a tremendous benefit for some.
As it stands, wxPython probably cannot replace Tkinter as the default Python GUI tool, at least not until the Apple Macintosh port of wxWindows is completed and a stable release is made. But it shows a lot of promise, as being a much higher-level toolkit.

Hugues Talbot (hugues.talbot@cmis.csiro.au) is a Frenchman living in Australia. As such, he likes to eat, drink, cook and annoy his colleagues. His wife is constantly reminding him to get a hobby that has nothing to do with computing.
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Comments
examples
Nice examples, however how about removing the line numbers?
Try this
This should remove the lines numbers from the listings if you download them and save them to disk:
Mitch Frazier is an Associate Editor for Linux Journal.