Using python logging module, one can change logging level of a imported module that also uses python logging. In this snippet, the last line (commented out) disables MSAL DEBUG logs.

python_logging_example_2.py

import msal

# Optional logging
formatter = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
# logging.basicConfig(format=formatter, level=logging.DEBUG)  # Enable DEBUG log for entire script
logging.basicConfig(format=formatter) # initialte logging
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
# logging.getLogger("msal").setLevel(logging.INFO)  # Optionally disable MSAL DEBUG logs