Matplotlib window 'Not Responding'/hangs/stops updating when out-of-focus

Hello All,

Running:

Windows Vista
Python 2.6
Matplotlib 0.99.3

The following script using draw() in matplotlib seems to work all right until almost anything momentarily interferes with the plot window.

import pylab as p
import time

try:
    p.ion()
    fig = p.figure()
    subplt = fig.add_subplot(111, aspect='equal')
    subplt.set_title('Test')
    i = 1
    while True:
        if i % 20 == 0:
            subplt.clear()
            subplt.set_title('Test')

        subplt.plot([50],[50+(i%20)],'ob')

        subplt.set_xlim(40,60)
        subplt.set_ylim(40,80)
        p.draw() # ion should make this redundant, but does not draw without it
        i += 1
        time.sleep(0.1)
        print '.'
except:
    raise
finally:
    fig.close()

If I touch the window or it goes out-of-focus at any point, it stops responding and hangs. Any code being executed will still continue running, but the plot window will remain in a hanged state. Why is this happening and is there a way to fix it? Also, if this is not occuring on your machine, can you list what platform you are running, etc. Apologies if I am missing something obvious here, and thanks for any help.

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Update:

I am still not sure what is causing this issue. I realized I could still solve the specific problem I was working on by switching over to pygtk. I am still interested in any answers if anyone has any.

Thanks.

ansaurus

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Matplotlib window 'Not Responding'/hangs/stops updating when out-of-focus

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