Using a variable while calling logger.setLevel

Question

Does anyone know if there is a way to use a variable in the setlevel() function of Python's Logging module?

At the moment I am using this:

Log = logging.getLogger('myLogger') Log.setLevel(logging.DEBUG) 

But I'd like to have this:

Log = logging.getLogger('myLogger') levels = {'CRITICAL' : logging.critical,     'ERROR' : logging.error,     'WARNING' : logging.warning,     'INFO' : logging.info,     'DEBUG' : logging.debug } level = levels['INFO'] Log.setLevel(level) 

But it doesn't seem to work - it just doesn't log anything.

I'm doing this so that I can set the logging level for a whole bunch of scripts from a variable in a single config file.

Answer 1

You should also be able to do this:

Log = logging.getLogger('myLogger') level = logging.getLevelName('INFO') Log.setLevel(level) 

The logging.getLevelName(lvl) function works both ways. I use it, it works (you should check your python implementation though).

This saves you the trouble to maintain your own dictionary, and reduces the possibility of typo errors.

Answer 2

I had problems with python 3 and got this working for me: https://docs.python.org/3/howto/logging.html

# myapp.py import logging import mylib  def main():     logging.basicConfig(filename='myapp.log', level=logging.INFO)     logging.info('Started')     mylib.do_something()     logging.info('Finished')  if __name__ == '__main__':     main()