Bug 2440186

Summary: [heads up] python-AppTools will fail to build with Sphinx 9+ in Fedora 45: TypeError("argument of type '_CascadingStyleSheet' is not a container or iterable")
Product: [Fedora] Fedora Reporter: Karolina Surma <ksurma>
Component: python-AppToolsAssignee: Orion Poplawski <orion>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
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Version: rawhideCC: orion
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Fixed In Version: python-enthought-sphinx-theme-0.7.4-1.fc45 Doc Type: ---
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Last Closed: 2026-02-21 18:02:26 UTC Type: Bug
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Bug Blocks: 2419310    

Description Karolina Surma 2026-02-16 11:34:23 UTC
[heads up] python-AppTools will fail to build with Sphinx 9+ which is going to be shipped in Fedora 45.

Traceback
=========

      File "/usr/lib/python3.14/site-packages/sphinx/builders/html/__init__.py", line 1238, in handle_page
        raise ThemeError(msg) from exc
    sphinx.errors.ThemeError: An error happened in rendering the page index.
    Reason: TypeError("argument of type '_CascadingStyleSheet' is not a container or iterable")

Build attempts: https://copr.fedorainfracloud.org/coprs/ksurma/sphinx-9/package/python-AppTools/

I have already reported it upstream: https://github.com/enthought/apptools/issues/368

Thank you for working on this!

Comment 1 Orion Poplawski 2026-02-21 18:02:26 UTC
Should be fixed with python-enthought-sphinx-theme-0.7.4-1.fc45