Hi, I have written a basic QtAgg backend for Matplot-lib. It is only tested on Windows, so some more testing should be done, but it is my hope that it can some day be included in the matplotlib distribution. I will test on linux when I get the time, but all the code is python so it should probably work ok. See http://www.tjora.no/python/matplotlib/ for the code. Most examples run ok, but the keypress_demo.py does not work yet. Not all examples have been tested, just some random double-clicking on the one that look interesting. A lot of the comments from the backend_template.py has not been removed or fixed. The code is also somewhat rough around the edges, but it works. Is there any unittest-suite it is possible to run the backend against? Feedback is welcome. Best regards, Sigve Tjora