[issue40553] Python 3.8.2 Mac freezing/not responding when saving new programs

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:

By 'preview', I meant the listing of existing file in the directory, such as Documents.  IDLE displays this but, as I inferred and you and Bev confirmed, this is not standard on macOS, as there is a button (which I did not noticed before) to show or hide the file list and other stuff. (There is no such button on Windows.) So *if* it is the problem culprit for some people, we could, I presume, leave the pane initially hidden.

Is the filelist pane a 'sheet'?  Could the recent 'sheets' fix (Christian's comment) for these dialogs on Catalina be involved?  What is your latest take on 8.6.10 for OSX?

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40553>
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