Author ronaldoussoren
Recipients ezwelty, ned.deily, ronaldoussoren
Date 2018-03-23.12:19:37
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Message-id <1521807577.3.0.467229070634.issue33111@psf.upfronthosting.co.za>
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I cannot reproduce the problem on macOS 10.13.3 with python 3.6 (but haven't spent much time on this).

The combination of GUI code with multiprocessing is a known source of problems on macOS, the system libraries are hostile to that.

Changing the start method from "fork" to "spawn" or "forkserver" should help with this, using multiprocessing.set_start_method(). This should be changed before doing anything that might Apple system frameworks related to GUIs.
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Date User Action Args
2018-03-23 12:19:37ronaldoussorensetrecipients: + ronaldoussoren, ned.deily, ezwelty
2018-03-23 12:19:37ronaldoussorensetmessageid: <1521807577.3.0.467229070634.issue33111@psf.upfronthosting.co.za>
2018-03-23 12:19:37ronaldoussorenlinkissue33111 messages
2018-03-23 12:19:37ronaldoussorencreate