[issue36780] Interpreter exit blocks waiting for futures of shut-down ThreadPoolExecutors

[Hrvoje Nikšić]

Hrvoje Nikšić <hniksic at gmail.com> added the comment:

Thanks for the clarification, I didn't know about the change to non-daemon threads.

I still think this patch is useful, and won't harm general use because it is opt-in, just like daemon threads themselves. I suggest to update the PR to specify non-waiting pool at the point of creation rather than in shutdown(). (That will also make it more acceptable for the same option not being supported for process pools - it is ok for constructor signatures to differ.)

If there is interest, someone should take over the PR, as I have changed jobs and no longer have time to actively pursue this issue.

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<https://bugs.python.org/issue36780>
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