[issue42278] Remove usage of tempfile.mktemp in stdlib

[E. Paine]

Change by E. Paine <paineelisha at gmail.com>:


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keywords: +patch
pull_requests: +22100
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/23200

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42278>
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