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Bug 1982081

Summary: Cython generates wrong code with the newest python
Product: [Fedora] Fedora Reporter: andrii.verbytskyi
Component: CythonAssignee: Miro Hrončok <mhroncok>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: rawhideCC: igor.raits, mhroncok, ndbecker2, python-sig, steve.traylen
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
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Clone Of: Environment:
Last Closed: 2021-07-14 10:11:17 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1890881    

Description andrii.verbytskyi 2021-07-14 07:27:03 UTC
Description of problem:

It looks like the Cython available in rawhide python3-Cython 0.29.22-3.fc35
does not contain some bugfixes from the upstream
 and uses `_PyGen_Send` in the generated code for the newest python3 3.10.0~b4-1.fc35

How reproducible:

Some build logs from copr:

Comment 1 Miro Hrončok 2021-07-14 09:21:11 UTC
python3-Cython 0.29.22-3.fc35 includes fixes in

I've just verified that.

Comment 2 Miro Hrončok 2021-07-14 09:25:29 UTC
I've added to %prep:

rm $(grep -Flr '/* Generated by Cython')

And running a sratchbuild:

Comment 3 Miro Hrončok 2021-07-14 10:11:17 UTC
It built fine. It only fails when it uses pre-generated sources.

See also

Comment 4 andrii.verbytskyi 2021-07-14 10:26:27 UTC
Thank you!

Python packaging guidelines:  yes, I know that and the package should re-generate the bindings once the Cython was detected. If that did not happen -- that is a bug, but in the package, in Cython.

Thank you once again!