Howdy, I'm running in to a problem where TkInter won't update the interface on OS X. I've filed a bug (http://bugs.python.org/issue16941), but it was suggested that I also send the message here, in case you have some thoughts about what to do -- either a fix or a workaround.
Here's a small piece of code which has the problem: https://mywebspace.wisc.edu/lnmaurer/web/updatebug/bugtest.py The program is simple -- basically a big canvas with a some text in the middle that counts up. Here's a short quick-time movie showing the problem with that code: https://mywebspace.wisc.edu/lnmaurer/web/updatebug/updatebug.mov The screen-cast has three parts. First, it shows the program working as it should. Then, I add a simple background image to the canvas (a black rectangle), and the interface refuses to refresh at all; I get a spinning beach ball wheel (although the cursor appears as the usual black arrow in the screen-cast). Finally I increase the delay between updates, and the interface again refreshes as it should. The middle case, where the interface becomes totally unresponsive, is a bug. I haven't been able to reproduce this problem under Linux or Windows; I've only run in to it on OS X. Also, the size of the canvas and image matters; if I make them small enough, the interface won't freeze up. I first ran in to this problem on a more complicated program with a more complex interface http://lnmaurer.github.com/Interference-Inference-Interface/ so -- if you can't reproduce the problem with the simple code -- you may be able to reproduce it with that more complex code. Computer and software information: OS X 10.6.8 Python 2.7.3 ActiveTcl 8.5.13 PIL 1.1.7 MacBookPro5,5 w/ 2.26GHz Core 2 Duo (So it's a machine that's kind of slow by today's standards. Maybe faster machines won't run in to this problem, but this machine doesn't have the problem when running Windows or Linux.) Thanks. -Leon
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