[Python] how to set logging level from command line

I'm using argparse to get the logging level from the command line and then passing it as input for logging.basicConfig. However, the way I'm trying to implement this is not working. Any suggestion?

Desire behavior, from command line:

python main.py -log=DEBUG


Desire output

DEBUG:__main__: Debug is working


Code

import logging
import argparse

parser = argparse.ArgumentParser()
parser.add_argument("-log", "--log", nargs='+', help="Provide logging level. Example --log debug'")

log_level = parser.parse_args().log
log_level = 'logging.'+log_level[0]
print(log_level)
logging.basicConfig(level=log_level)
logger = logging.getLogger(__name__)
logger.debug(' Debug is working')

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