[issue21140] Idle: saving Shell or an OutputWindow should default to .txt

[Terry J. Reedy]

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

>From #45297, closed as duplicate.
https://discuss.python.org/t/what-is-this-syntax-i-dont-know-how-to-fix-it/10844

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<https://bugs.python.org/issue21140>
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