[issue39682] pathlib.Path objects can be used as context managers

[Brett Cannon]

Brett Cannon <brett at python.org> added the comment:

> Can I ask what sort of backwards-compatibility guarantees Python provides for these cases?

A deprecation warning for two releases (i.e. two years). Then it can be removed. So if people want to move forward with removing this then a DeprecationWarning would need to be raised in all places where _closed is set with a message stating the functionality is deprecated in 3.9 and slated for removal in 3.11 (along with appropriate doc updates, both for the module and What's New).

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