Repository navigation
Python3.13 logging level not working #131789
Description
Bug description:
Hi,
i noticed a regression in python 3.13.2 that the log level has no effect.
I tested the example from https://docs.python.org/3.13/library/logging.html
import logging
logger = logging.getLogger(__name__)
def main():
logging.basicConfig(filename='myapp.log', level=logging.INFO)
logger.info('Started')
logger.info('Finished')
if __name__ == '__main__':
main()python3.13 example.py
but nothing is printed.
CPython versions tested on:
3.13
Operating systems tested on:
Linux
Activity
graingert commentedon Mar 27, 2025
you configured
logging.basicConfig(filename='myapp.log', level=logging.INFO)this means nothing will be printed, instead logs will be written to myapp.logericvsmith commentedon Mar 27, 2025
As @graingert mentions, the output does show up in the file myapp.log.
If this is a regression, then in what version of python did it produce output?
I don't think there's a bug here, but if this did behave differently in a previous version of python that would be interesting.
trivialkettle commentedon Mar 27, 2025
Ah sorry, you are right, I missed this.
I had some strange issues, that I could not set the logger level, my code works on python 3.10 but not on 3.13.
basically I do
I try to reproduce this, maybe it was a glitch or something.
Edit: I close it for now until I can reproduce this.