Created attachment 857841 [details]
proposed solution - please test it

Description of problem:

From nitrate.py:
from api import *

From api.py:
_log_level = log.WARN

def set_log_level(level=None):
...
    log.getLogger().setLevel(_log_level)

set_log_level()

It means that after you import nitrate in your code, you will have log level of the root logger set to WARNING from the moment of the import, which may affect all your logging in the system (especially if you create all loggers with default NOTSET level and let them delegate messages to parents).


Version-Release number of selected component (if applicable):


How reproducible: 


Steps to Reproduce:

>>> import logging
>>> logging.basicConfig(level=logging.INFO)
>>> logger = logging.getLogger('test')
>>> logging.getLogger().getEffectiveLevel()
20
>>> logger.getEffectiveLevel()
20
>>> import nitrate
>>> logging.getLogger().getEffectiveLevel()
30
>>> logger.getEffectiveLevel()
30


Actual results: importing nitrate changes the log level of the root logger


Expected results:
* importing nitrate should not change the log level of the root logger
* using nitrate should not change the level as well

Additional info: