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Data races with frame objects #144446
Description
Bug report
We've fixed most of the data races with Python frame objects in:
But I think we missed a few places, such as:
-
repr(frame)on an frame that is executing or in the process of getting cleared -
frame.f_lasti - Accessing variables through
frame.f_locals
Additionally, I'd like to add more free threading tests for frames.
Linked PRs
- gh-144446: Fix some frame object thread-safety issues #144479
- [3.14] gh-144446: Fix some frame object thread-safety issues (gh-144479) #144546
- gh-144446: Fix thread-safety of FrameLocalsProxy on executing frames #145183
- gh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame in free-threading #156037
- gh-144446: Fix _PyFrame_GetFrameObject() for test_cppext (C++) #156893
- gh-144446: Fix thread-safety of FrameLocalsProxy on executing frames #156973
Activity
pythongh-144446: Fix some frame object thread-safety issues
gh-144446: Fix some frame object thread-safety issues (gh-144479)
pythongh-144446: Fix some frame object thread-safety issues (pythongh…
[3.14] gh-144446: Fix some frame object thread-safety issues (gh-144479…
pythongh-144446: Fix some frame object thread-safety issues (pythongh…
LindaSummer commentedon Feb 24, 2026
Hi @colesbury ,
I want to work on the
Accessing variables through frame.f_localssub issue.Could I try this sub-task? 😊
colesbury commentedon Feb 24, 2026
Thanks @LindaSummer, but I've already started on it. I'll open a draft PR with the changes. Still thinking about if this is the way I want to implement it.
pythongh-144446: Fix thread-safety of FrameLocalsProxy on executing f…
pythongh-144446: Fix thread-safety of FrameLocalsProxy on executing f…
pythongh-144446: Fix some frame object thread-safety issues (pythongh…
pythongh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame…
pythongh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame…
gh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame in fr…
pythongh-144446: Fix _PyFrame_GetFrameObject() for test_cppext (C++)
gh-144446: Fix _PyFrame_GetFrameObject() for test_cppext (C++) (#156893)
pythongh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame…
pythongh-144446: Fix thread-safety of FrameLocalsProxy on executing f…
pythongh-144446: Fix thread-safety of FrameLocalsProxy on executing f…
pythongh-144446: Fix thread-safety of FrameLocalsProxy on executing f…
pythongh-144446: Fix thread-safety of FrameLocalsProxy on executing f…
pythongh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame…
pythongh-144446: Fix _PyFrame_GetFrameObject() for test_cppext (C++) (p…