[issue23544] IDLE hangs when selecting Stack View with debug active

[Terry J. Reedy]

Change by Terry J. Reedy <tjreedy at udel.edu>:


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nosy:  -kbk, roger.serwy
versions: +Python 3.9 -Python 2.7, Python 3.6, Python 3.7, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue23544>
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