[issue27609] IDLE completions: format, factor, and fix

[Terry J. Reedy]

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

38943 Autocomplete box sometimes does not show on Ubuntu.
38944 Excape key should close completion box.

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dependencies: +Idle autocomplete window doesn't close on Escape key, Idle autocomplete window doesn't show up

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue27609>
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