Add some doctest cleanups for turtle and configparser

[AlexWaygood]

These doctests write files to your file system, leaving your working tree in a dirty state

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📚 Documentation preview 📚: https://cpython-previews--125288.org.readthedocs.build/

[AlexWaygood]

I tried in vain to find a way to get the turtle window to close after the turtle doctests specifically have finished. (It currently does not disappear until all doctests for all modules have been completed.) Sadly I know very little about turtle!

[miss-islington-app]

Thanks @AlexWaygood for the PR 🌮🎉.. I'm working now to backport this PR to: 3.12, 3.13.
🐍🍒⛏🤖

[bedevere-app]

GH-125290 is a backport of this pull request to the 3.13 branch.

[bedevere-app]

GH-125291 is a backport of this pull request to the 3.12 branch.

[zware]

I tried in vain to find a way to get the turtle window to close after the turtle doctests specifically have finished.

Not yet tested, but I think turtle.bye() might do it.

[AlexWaygood]

Not yet tested, but I think turtle.bye() might do it.

I tried! Without success...

[zware]

Interesting! I have now had a chance to try it locally, and adding bye() (not turtle.bye(), but bye from the from turtle import *) to your added testcleanup section was enough to remove the window at the end of the turtle tests for me. I'll open a PR with what worked here for your perusal (and leave it as a suggestion on the backports that need to adjust for the new feature anyway).

[AA-Turner]

@zware I got #125293 working, but it might be too complicated if just bye() works (I had several doctest failures due to turtle.Terminator, hence trying the Screen().bye() approach.)

[bedevere-app]

GH-125290 is a backport of this pull request to the 3.13 branch.

[bedevere-app]

GH-125291 is a backport of this pull request to the 3.12 branch.