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Bug 1958947 - python-gast fails to build with Python 3.10: TypeError: required field "lineno" missing from alias
Summary: python-gast fails to build with Python 3.10: TypeError: required field "line...
Status: CLOSED DUPLICATE of bug 1968986
Alias: None
Product: Fedora
Classification: Fedora
Component: python-gast
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Miro Hrončok
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: PYTHON3.10
TreeView+ depends on / blocked
Reported: 2021-05-10 13:16 UTC by Miro Hrončok
Modified: 2021-06-08 09:38 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2021-06-08 09:38:35 UTC
Type: Bug

Attachments (Terms of Use)

Description Miro Hrončok 2021-05-10 13:16:29 UTC
python-gast fails to build with Python 3.10.0b1:

___________________________ SelfTestCase.testCompile ___________________________
self = <tests.test_self.SelfTestCase testMethod=testCompile>
    def testCompile(self):
        for src_py in self.srcs:
            with open(src_py) as f:
                content =
            gnode = gast.parse(content)
>           compile(gast.gast_to_ast(gnode), src_py, 'exec')
E           TypeError: required field "lineno" missing from alias
tests/ TypeError

For the build logs, see:

For all our attempts to build python-gast 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 Miro Hrončok 2021-06-04 20:15:51 UTC
This is a mass-posted update. Sorry if it is not 100% accurate to this bugzilla.

The Python 3.10 rebuild is in progress in a Koji side tag. If you manage to fix the problem, please commit the fix in the rawhide branch, but don't build the package in regular rawhide.

You can either build the package in the side tag, with:

    $ fedpkg build --target=f35-python

Or you can the build and we will eventually build it for you.

Note that the rebuild is still in progress, so not all (build) dependencies of this package might be available right away.


See also

If you have general questions about the rebuild, please use this mailing list thread:

Comment 2 Miro Hrončok 2021-06-07 23:00:13 UTC
The f35-python side tag has been merged to Rawhide. From now on, build as you would normally build.

Comment 3 Petr Viktorin 2021-06-08 09:38:35 UTC

*** This bug has been marked as a duplicate of bug 1968986 ***

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