[issue40360] Deprecate lib2to3 (and 2to3) for future removal

[Gregory P. Smith]

Change by Gregory P. Smith <greg at krypto.org>:


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keywords: +patch
pull_requests: +18969
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/19645

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40360>
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