Bug 2365820
| Summary: | mercurial fails to build with Python 3.14: AttributeError: partially initialized module 'threading' from '/usr/lib64/python3.14/threading.py' has no attribute 'RLock' (most likely due to a circular import) | ||
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| Product: | [Fedora] Fedora | Reporter: | Karolina Surma <ksurma> |
| Component: | mercurial | Assignee: | Mads Kiilerich <mads> |
| Status: | POST --- | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | fedoraproject.org, ksurma, mads, mhroncok, ndbecker2, opohorel, pstodulk |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | Bug | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2322407 | ||
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Description
Karolina Surma
2025-05-13 08:45:11 UTC
This very much reminds me of a problem that we saw earlier (bz2299346). Back then, it was fixed by a patch added in https://src.fedoraproject.org/rpms/mercurial/c/f1186a25db41b5bde9bdd37eb2fee05466bf1b0e?branch=389eb5b7d2e8459fe6f91a12fc133c310822f0f4 and later removed in https://src.fedoraproject.org/rpms/mercurial/c/9ee6346e8f42002676d4c943a0775ed4040189ff?branch=rawhide as upstreamed. Indeed, that patch was upstreamed, and the code after fedpkg prep is:
IGNORES = {
...
# threading is locally imported by importlib.util.LazyLoader.exec_module
'_weakrefset',
'warnings',
'threading',
'collections.abc',
}
https://github.com/python/cpython/commit/d687900f98114bb5910daad9553ae381d7daf94b added a new import to threading, called _contextvars. Perhpas adding that one will fix this?
This patch works:
--- a/hgdemandimport/__init__.py
+++ b/hgdemandimport/__init__.py
@@ -60,6 +60,7 @@ IGNORES = {
'setuptools',
'_distutils_hack.override',
# threading is locally imported by importlib.util.LazyLoader.exec_module
+ '_contextvars',
'_weakrefset',
'warnings',
'threading',
I will try to figure out a way to send an upstream merge request.
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