New submission from Vinay Sajip <vinay_sa...@yahoo.co.uk>:

If a logger is disabled (by setting it's disabled attribute to True), the check 
for this is done late in the dispatch of the logging event - during the 
handle() call - rather than isEnabledFor(), which would short-circuit some 
processing. So the check for logger.disabled should be moved to isEnabledFor().

Credit to Abhijit Gadgil for raising this:

https://stackoverflow.com/questions/50453121/logger-disabled-check-much-later-in-python-logging-module-whats-the-rationale

----------
assignee: vinay.sajip
components: Library (Lib)
messages: 317328
nosy: vinay.sajip
priority: normal
severity: normal
stage: needs patch
status: open
title: Improve logging performance when logger disabled
type: enhancement
versions: Python 3.8

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33606>
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