[issue34621] uuid.UUID objects can't be unpickled in older Python versions (<3.7)

[Tal Einat]

Tal Einat <taleinat at gmail.com> added the comment:

Note that the original fix, in PR GH-9133, contained a bug: UUID objects with `is_safe` set to `SafeUUID.unknown` would cause an exception if unpickled with Python <3.7.

This was reported by Thomas Wiebe in a comment to a commit in that PR:
https://github.com/python/cpython/commit/d53f1cabe8837697df4acb70c9c6537461b5eeda#commitcomment-31396021

This is now fixed, see PR GH-14834.

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