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

[Tal Einat]

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

[Tal Einat]

Tal Einat  added the comment:


New changeset a2ea9448c677706d6318eaa71101f08df7604eb9 by Tal Einat in branch 
'3.7':
[3.7] bpo-34621: backwards-compatible pickle UUID with is_safe=unknown 
(GH-14834)
https://github.com/python/cpython/commit/a2ea9448c677706d6318eaa71101f08df7604eb9


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

[Tal Einat]

Change by Tal Einat :


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pull_requests: +14625
pull_request: https://github.com/python/cpython/pull/14834

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

[Tal Einat]

Change by Tal Einat :


--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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

[Tal Einat]

Tal Einat  added the comment:


New changeset d53f1cabe8837697df4acb70c9c6537461b5eeda by Tal Einat in branch 
'3.7':
[3.7] bpo-34621: fix uuid.UUID (un)pickling compatbility with older Python 
versions (<3.7) (GH-9133)
https://github.com/python/cpython/commit/d53f1cabe8837697df4acb70c9c6537461b5eeda


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

[Tal Einat]

Change by Tal Einat :


--
keywords: +patch
pull_requests: +8585
stage:  -> patch review

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

[Tal Einat]

New submission from Tal Einat :

This affects only 3.7, where the new SafeUUID enum was introduced.

This was fixed on the master branch (3.8) while implementing issue30977.

Fixing this should simply require defining similar __getstate__ and 
__setstate__ methods as in 3.8.

--
components: Library (Lib)
messages: 324919
nosy: serhiy.storchaka, taleinat
priority: normal
severity: normal
status: open
title: uuid.UUID objects can't be unpickled in older Python versions (<3.7)
type: behavior
versions: Python 3.7

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