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Bug 1830802 - python-autopep8 fails to build with Python 3.9: SystemError: <class 'UnicodeDecodeError'> returned a result with an error set
Summary: python-autopep8 fails to build with Python 3.9: SystemError: <class 'UnicodeD...
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: python-autopep8
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Matthias Runge
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F33FTBFS PYTHON39
TreeView+ depends on / blocked
 
Reported: 2020-05-03 22:54 UTC by Miro Hrončok
Modified: 2020-06-11 11:47 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-06-11 11:47:20 UTC
Type: Bug
Embargoed:


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System ID Private Priority Status Summary Last Updated
Python 40555 0 None None None 2020-05-07 23:50:44 UTC

Description Miro Hrončok 2020-05-03 22:54:50 UTC
python-autopep8 fails to build with Python 3.9.0a6.

======================================================================
ERROR: test_compile_value_error (test.test_autopep8.UnitTests)
----------------------------------------------------------------------
  File "<string>", line 1
SyntaxError: unknown parsing error

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/builddir/build/BUILD/autopep8-1.4.3/test/test_autopep8.py", line 63, in test_compile_value_error
    self.assertFalse(autopep8.check_syntax(source))
  File "/builddir/build/BUILD/autopep8-1.4.3/autopep8.py", line 3120, in check_syntax
    return compile(code, '<string>', 'exec', dont_inherit=True)
SystemError: <class 'UnicodeDecodeError'> returned a result with an error set

----------------------------------------------------------------------
Ran 532 tests in 14.807s

FAILED (errors=1, skipped=5)

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.9/fedora-rawhide-x86_64/01365442-python-autopep8/

For all our attempts to build python-autopep8 with Python 3.9, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/package/python-autopep8/

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 3.9:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/

Let us know here if you have any questions.

Python 3.9 will be included in Fedora 33. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.9.
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 Miro Hrončok 2020-05-03 22:55:55 UTC
A SystemError here is weird, AFAIK this is a pure Python package. CCing Victor and Petr.

Comment 2 Victor Stinner 2020-05-07 23:50:45 UTC
> A SystemError here is weird, AFAIK this is a pure Python package. CCing Victor and Petr.

Right. It's a crash in the Python 3.9 new parser. I reported the issue upstream:
https://bugs.python.org/issue40555

Comment 3 Miro Hrončok 2020-05-07 23:56:54 UTC
Thank you, Victor.

Comment 4 Victor Stinner 2020-05-10 10:02:25 UTC
I reported the issue upstream: https://bugs.python.org/issue40555

It has been fixed: https://github.com/python/cpython/commit/db9163ceef31ba00ccb23226917f9c8e9142a0b8

The fix will be part of the next Python 3.9.0 beta1 release.

Comment 5 Miro Hrončok 2020-05-25 13:01:15 UTC
This comment is mass posted to all bugs blocking the Python 3.9 tracker, sorry if it is not 100 % relevant. When in doubt, please ask.


The Python 3.9 rebuild is in progress in a Koji side tag.

If you fix this bug, please don't rebuild the package in regular rawhide, but do it in the side tag with:

    $ fedpkg build --target=f33-python

The rebuild is progressing slowly and it is possible this package won't have all the required build dependencies yet. If that's the case, please just leave the fix committed and pushed and we will eventually rebuild it for you.

You are not asked to go and try rebuild all the missing dependencies yourself. If you know there is a bootstrap loop in the dependencies, let me know and we can untangle it together.

If you want to test your fix or reproduce the failure, you can still use the Copr repo mentioned in the initial comment of this bug: https://copr.fedorainfracloud.org/coprs/g/python/python3.9/

Comment 6 Miro Hrončok 2020-05-29 07:11:20 UTC
Python 3.9 update: The f33-python side tag is currently being merged.

New builds in f33-python are no longer possible, but python3 is not yet updated to Python 3.9 in rawhide. You can check when Python is Python 3.9 with:

    $ koji wait-repo f33-build --build python3.9-3.9.0~b1-3.fc3

And build the packages normally after that.

Comment 7 Miro Hrončok 2020-06-11 11:47:20 UTC
This is a bulk close of Python 3.9 bugzillas of packages that successfully built.
If this remained open for a reason, I am sorry and feel free to reopen.


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