Python: Profiling Fixes and AsyncIO Improvements
The Python development team merged 14 pull requests on May 9th, focusing on profiling tool edge cases, Windows asyncio pipe handling, and documentation corrections. Notable improvements include fixes to the sampling profiler's heatmap navigation and making pipe handle cleanup more robust.
Duration: PT2M7S
Episode overview
This episode is a short developer briefing from Python.
It explains recent repository work in plain language.
- Show: Python
- Published: 2026-05-10T10:01:18Z
- Audio duration: PT2M7S
Transcript excerpt
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Good morning, this is your Python development briefing for May 10th, 2026.
Yesterday saw significant activity with 14 merged pull requests addressing profiling tools, asyncio improvements, and documentation fixes.
László Kiss Kollár merged a fix for edge cases in the profiling sampling module's outputs. The patch resolves issues where heatmap line highlights wouldn't replay when clicking already-selected caller-callee links, and fixes crashes caused by uninitialized variables in structural elided roots. The fix includes…
Max Schmitt merged an important asyncio fix making PipeHandle.close operations idempotent on Windows. Previously, calling close multiple times on the same handle could raise exceptions. The fix clears the handle reference before calling CloseHandle, preventing re-raising errors during subsequent close operations or…
Pieter Eendebak merged a performance improvement to inspect.getattr_static, optimizing the common metaclass case by reducing redundant _shadowed_dict calls when consecutive MRO entries share metaclasses.
Several documentation fixes were also merged. Manoj K M corrected minor typos in the Unicode C-API documentation, fixing grammar in return type…
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