Bug 1899115 - moose fails to build with Python 3.10: ModuleNotFoundError: No module named 'parser'
Summary: moose fails to build with Python 3.10: ModuleNotFoundError: No module named '...
Alias: None
Product: Fedora
Classification: Fedora
Component: moose
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Zbigniew Jędrzejewski-Szmek
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: PYTHON3.10
TreeView+ depends on / blocked
Reported: 2020-11-18 14:51 UTC by Tomáš Hrnčiar
Modified: 2021-02-09 16:24 UTC (History)
5 users (show)

Fixed In Version:
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Type: Bug

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System ID Private Priority Status Summary Last Updated
Github BhallaLab moose-core issues 437 0 None open Python 3.10 drops parser module 2021-01-06 11:51:43 UTC

Description Tomáš Hrnčiar 2020-11-18 14:51:06 UTC
moose fails to build with Python 3.10.0a2.

5:   File "/builddir/build/BUILD/moose-core-3.1.5/x86_64-redhat-linux-gnu/python/moose/utils.py", line 17, in <module>
5:     import parser
5: ModuleNotFoundError: No module named 'parser'

The parser module was remove from Python 3.10: See https://bugs.python.org/issue40939

For the build logs, see:

For all our attempts to build moose with Python 3.10, see:

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Ankur Sinha (FranciscoD) 2020-12-05 21:36:29 UTC
Thanks for this. Is there any information on how this is to be handled? Do we simply remove the import, or does it have to be ported to something else?

Comment 2 Ben Cotton 2021-02-09 15:25:45 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.

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