[issue40886] Add PYTHONLOGGING environment variable and -L cmdline argument

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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nosy: +vinay.sajip

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[issue40886] Add PYTHONLOGGING environment variable and -L cmdline argument

[Bar Harel]

New submission from Bar Harel :

Per discussion on mailing list, I suggest adding a PYTHONLOGGING environment 
variable, and a matching -L cmdline argument.

When set to a logging level of choice, they will initiate basicConfig with the 
appropriate level.

For example, "py.exe -L info" will be equivalent to 
"logging.basicConfig(level='info')" on interpreter startup.

Sames as setting env var "PYTHONLOGGING=info".

This matches the current behavior of other settings, such as PYTHONWARNINGS and 
-W, allows to easily test programs without modifying them, and further 
completes the expected arguments available from the commandline.

Discussion on mailing list for reference:
https://mail.python.org/archives/list/python-id...@python.org/thread/I74LVJWJLE2LUCCZGOF5A5JDSDHJ6WX2/

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components: Library (Lib)
messages: 370807
nosy: bar.harel
priority: normal
severity: normal
status: open
title: Add PYTHONLOGGING environment variable and -L cmdline argument
type: enhancement
versions: Python 3.10

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