[Python] python logger init to `level=20` (INFO) do not show debug if I later change to...

I changed my logging default level to logging.INFO (20) from Logging.DEBUG (10), but then it wont show debug messages if I change logLevel to 'DEBUG' later on in the code:

Old config works fine:

>>> import mylog
>>> log1 = mylog.mylogger('log1',level=10) # default is DEBUG
added logger log1 of level:10
>>> log1
<Logger log1 (DEBUG)>
>>> log1.debug("works")
20241007163742.800|DEBUG|<stdin>:1|works
>>> log1.setLevel(20)
>>> log1
<Logger log1 (INFO)>
>>> log1.info("works")
20241007163825.042|INFO|<stdin>:1|works
>>> log1.debug("should not show")
>>>


I can also go back to debug and it works:

>>> log1.setLevel(10)
>>> log1
<Logger log1 (DEBUG)>
>>> log1.debug("works")
20241007164010.113|DEBUG|<stdin>:1|works


All fine, except default logging is DEBUG which logs a bit too much if I do not change the loglevel.

But if I defaults to level=20 I can't see DEBUG after a log2.setLevel(10):

>>> log2 = mylog.mylogger('log2',level=20) # default is INFO
added logger log2 of level:20
>>> log2
<Logger log2 (INFO)>
>>> log2.info("works")
20241007164505.921|INFO|<stdin>:1|works
>>> log2.debug("should not show")
>>> log2.setLevel(10)
>>> log2
<Logger log2 (DEBUG)>
>>> log2.info("works as before")
20241007164628.199|INFO|<stdin>:1|works as before
>>> log2.debug("why is this not showing")
>>>


my simplified log module mylog.py:

import logging
def mylogger(name:str, level:int=logging.INFO) -> logging.Logger:
""" default logger """
logger = logging.getLogger(name)
if logger.hasHandlers():
print(f"logger {name} already has handler")
else:
logger.setLevel(level)
console_fmt = "%(asctime)s.%(msecs)03d|%(levelname)s|%(pathname)s:%(lineno)d|%(message)s"
datefmt = "%Y%m%d%H%M%S"
ch = logging.StreamHandler()
ch.setLevel(level)
ch.setFormatter(logging.Formatter(file_fmt, datefmt))
logger.addHandler(ch)
logger.propagate = False
print(f"added logger {name} of level:{logger.level}")
return logger


Could it be the level of the StreamHandler()?

How can I check this after it has been set up?

>>> loggers = [logging.getLogger(name) for name in logging.root.manager.loggerDict]
>>> loggers
[<Logger log1 (DEBUG)>, <Logger log2 (DEBUG)>]

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