[issue33412] Tkinter hangs if using multiple threads and event handlers

[Ivan Pozdeev]

Ivan Pozdeev <ivan_pozdeev at mail.ru> added the comment:

> 
Do you have a suggestion for what to do short of dropping Tkinter support?

Didn't really look into this.
At first glance, from the trace log, the main thread seems to grab a lock at some initial point, and then tries to grab it again when running an event handler. So making the lock reentrant may help.

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<https://bugs.python.org/issue33412>
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