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Bug 1958989

Summary:	python-pysnooper fails to build with Python 3.10: OutputFailures in tests, AST is different?
Product:	[Fedora] Fedora	Reporter:	Miro Hrončok <mhroncok>
Component:	python-pysnooper	Assignee:	Lumír Balhar <lbalhar>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	lbalhar, mhroncok, python-sig, thrnciar, zbyszek
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2021-05-20 13:24:38 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:
Bug Depends On:
Bug Blocks:	1890881

Description Miro Hrončok 2021-05-10 14:32:50 UTC

python-pysnooper fails to build with Python 3.10.0b1:

=========================== short test summary info ============================
FAILED tests/test_pysnooper.py::test_relative_time - tests.utils.OutputFailure: 
FAILED tests/test_pysnooper.py::test_with_block[True] - tests.utils.OutputFai...
FAILED tests/test_pysnooper.py::test_with_block[False] - tests.utils.OutputFa...
FAILED tests/test_pysnooper.py::test_with_block_depth[True] - tests.utils.Out...
FAILED tests/test_pysnooper.py::test_with_block_depth[False] - tests.utils.Ou...
FAILED tests/test_pysnooper.py::test_cellvars[True] - tests.utils.OutputFailu...
FAILED tests/test_pysnooper.py::test_cellvars[False] - tests.utils.OutputFail...
FAILED tests/test_pysnooper.py::test_var_order[True] - tests.utils.OutputFail...
FAILED tests/test_pysnooper.py::test_var_order[False] - tests.utils.OutputFai...
================== 9 failed, 64 passed, 21 warnings in 1.54s ===================

I don't know what pysnooper does exectly, but it looks like something changed in the Python 3.10 AST and the tests don't understand that yet.

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.10/fedora-rawhide-x86_64/02175080-python-pysnooper/

For all our attempts to build python-pysnooper with Python 3.10, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/package/python-pysnooper/

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:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/

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 Lumír Balhar 2021-05-11 15:59:14 UTC

Reported upstream: https://github.com/cool-RR/PySnooper/issues/218

No need to hurry here, the package is a leaf one.

Comment 2 Lumír Balhar 2021-05-20 13:24:38 UTC

Should be fixed in rawhide, tested in copr, https://bodhi.fedoraproject.org/updates/FEDORA-2021-16b2cbf41c