[issue27918] Running test suites without gui but still having windows flash

[Martin Panter]

Martin Panter added the comment:

Xiang’s second patch looks okay to me. The flashes occasionally annoy me with X windows if I am doing something else and have the Python tests running in the background.

I understand deferring the _is_gui_available() call will fix the main problem, and the withdraw() call is just an added nicety to avoid unnecessary windows when you actually enable -ugui.

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nosy: +martin.panter
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27918>
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