logging: also capture logs from non-propagating loggers#14375
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bluetech wants to merge 2 commits intopytest-dev:mainfrom
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logging: also capture logs from non-propagating loggers#14375bluetech wants to merge 2 commits intopytest-dev:mainfrom
bluetech wants to merge 2 commits intopytest-dev:mainfrom
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…f non-propagating loggers Demonstrate the bug/missing functionality of reporting logs emitted by non-propagating loggers (i.e. loggers which don't reach the root logger, where we currently attach our handler). Refs pytest-dev#3697 [ran: extracted from pytest-dev#10303 and changed to use HookRecorder]
Previously, we only attached our capturing handler to the root logger. This means that logs emitted by non-propagating loggers (including all children which propagate to *them*) were not captured. As far as I can see, for the pytest use case, we do always want to capture these logs, for both test reporting (i.e. the "Captured log calls" section) and `caplog` testing. Fix by attaching to all non-propagating loggers in addition to the root logger. This approach doesn't handle loggers which become non-propagating during the test, which seems OK to me. A downside is that the (somewhat performance-sensitive) per-test logging setup becomes a bit slower (depending on the logging setup). Fix pytest-dev#3697
This was referenced Apr 10, 2026
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Previously, we only attached our capturing handler to the root logger. This means that logs emitted by non-propagating loggers (including all children which propagate to them) were not captured.
As far as I can see, for the pytest use case, we do always want to capture these logs, for both test reporting (i.e. the "Captured log calls" section) and
caplogtesting.Fix by attaching to all non-propagating loggers in addition to the root logger. This approach doesn't handle loggers which become non-propagating during the test, which seems OK to me.
A downside is that the (somewhat performance-sensitive) per-test logging setup becomes a bit slower (depending on the logging setup).
Fix #3697