create new log file on logging?

[bowlofred]

You can add a handler of type RotatingFileHandler. Check the documentation and make sure you don't set either maxBytes or backupCount to 0. You could modify your earlier logging setup like so:

import logging
from logging.handlers import RotatingFileHandler
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s %(message)s'),
    handlers=[RotatingFileHandler('/home/pi/logs/App1_log.log', maxBytes=1000000, backupCount=4),
    )