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Author i3p9
Recipients Marc.Culler, Nythepegasus, culler, epaine, i3p9, mlierley, ned.deily, ronaldoussoren, serhiy.storchaka, wordtech
Date 2021-09-06.22:41:33
SpamBayes Score -1.0
Marked as misclassified Yes
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Can also confirm this issue, tested on M1 and Intel Mac and both has the same error when using Monterey 12.0 Beta 21A5506j. 

On the same computer, using Big Sur, saves the file successfully and no error present. Seems like a Monterey issue, not dependent on specific hardware. (Intel/M1)

Tested on fresh Python 3.9.6 (tk version 8.6) Installation on Big Sur and Monterey Beta (Build 21A5506j) on a M1 Macbook Pro and Early 2015 13" Macbook Pro.
Date User Action Args
2021-09-06 22:41:33i3p9setrecipients: + i3p9, ronaldoussoren, wordtech, ned.deily, culler, serhiy.storchaka, Marc.Culler, epaine, Nythepegasus, mlierley
2021-09-06 22:41:33i3p9setmessageid: <>
2021-09-06 22:41:33i3p9linkissue44828 messages
2021-09-06 22:41:33i3p9create