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Lazily import traceback in logging #150072

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Lazily import traceback in logging#150072
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performancePerformance or resource usagestdlibStandard Library Python modules in the Lib/ directorytopic-lazy-importstype-featureA feature request or enhancement
@ByteFlowing1337

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@ByteFlowing1337
ByteFlowing1337
opened on May 19, 2026

Feature or enhancement

Proposal:

Currently, Lib/logging/__init__.py and Lib/logging/config.py eagerly import traceback, despite it only being used during exception handling. Making this import lazy avoids unnecessary startup overhead and improves initial loading time.

Has this already been discussed elsewhere?

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Links to previous discussion of this feature:

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Before 41msImage After 28ms(~31% faster)Image

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