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GeezerVison is showing github.com — Update collections from v3.14.3 by github-actions[bot] · Pull Request #7135 · RustPython/RustPython

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github-actions Bot commented Feb 14, 2026

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Summary

Upgrade collections from CPython v3.14.3.

Part of #6839

Changes

Updated Lib/collections/__init__.py from CPython v3.14.3
Updated Lib/test/test_collections.py from CPython v3.14.3
Preserved RustPython's fallback implementation for defaultdict (imports from ._defaultdict when _collections.defaultdict is not available)
Added new test test_update_reentrant_add_clears_counter for Counter class
Minor formatting fixes to maintain consistency with RustPython test conventions

Notes

The main compatibility consideration is that CPython's collections module now expects defaultdict to be available from the _collections C module. Since RustPython doesn't have this implemented yet, we maintain the fallback to the pure Python implementation in Lib/collections/_defaultdict.py.

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expires on Feb 15, 2026, 5:21 PM UTC

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          Update collections from v3.14.3

1c59b82

- Updated Lib/collections from CPython v3.14.3
- Preserved RustPython's fallback implementation for defaultdict
- Added test for update_reentrant_add_clears_counter
- Minor formatting fixes in test file

github-actions Bot added the pylib-sync label

Feb 14, 2026

youknowone removed the pylib-sync label

Feb 14, 2026

youknowone merged commit 16bb104 into agent-wf

Feb 14, 2026

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youknowone deleted the agent-wf-4b14ed6a938b1290 branch

February 14, 2026 12:35

youknowone pushed a commit to youknowone/RustPython that referenced this pull request

Mar 22, 2026


          Update collections from v3.14.3 (RustPython#7135)

5afb7c3

- Updated Lib/collections from CPython v3.14.3
- Preserved RustPython's fallback implementation for defaultdict
- Added test for update_reentrant_add_clears_counter
- Minor formatting fixes in test file

Co-authored-by: CPython Developers <>

youknowone pushed a commit that referenced this pull request

Sep 16, 2026


          Update collections from v3.14.3 (#7135)

3280d61

- Updated Lib/collections from CPython v3.14.3
- Preserved RustPython's fallback implementation for defaultdict
- Added test for update_reentrant_add_clears_counter
- Minor formatting fixes in test file

Co-authored-by: CPython Developers <>

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