Bug 2406005

Summary:	issue with pytz parsing newer versions of pytz/tzdata
Product:	[Fedora] Fedora	Reporter:	Peter Robinson <pbrobinson>
Component:	pytz	Assignee:	Gwyn Ciesla <gwync>
Status:	ASSIGNED ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	gwync
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OS:	Linux
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Bug Blocks:	2332196

Description Peter Robinson 2025-10-23 09:44:42 UTC

I dug into this a little bit due to the FTB of python-pandas.

The newer releases of pytz in some (maybe all) cases are returning wrong TZ data causing at least test failures.

Upstream bugs report this as an issue since 2024b. Some of the issues that show details are:
https://github.com/stub42/pytz/issues/138
https://github.com/stub42/pytz/issues/133
https://github.com/stub42/pytz/issues/130

The long term fix is likely to move to zoneinfo which has been part of python stdlib since 3.9 but this doesn't resolve the issue for the many users of pytz in Fedora in the short term.

Reproducible: Always

Comment 1 Gwyn Ciesla 2025-10-24 20:34:38 UTC

I've added myself to the two as yet open issues but I don't even see proposed fixes. Migration is definitely the right path.