propagate test

propagate.py

import sys
import logging

parent_logger = logging.getLogger("parent")
parent_logger.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler = logging.StreamHandler(sys.stdout)
handler.setLevel(logging.DEBUG)
handler.setFormatter(formatter)
parent_logger.addHandler(handler)
parent_logger.debug("parent Debug!!")
parent_logger.info("parent Info!!")

child_logger1 = logging.getLogger("parent.child1")
child_logger1.addHandler(handler)
child_logger1.propagate = True
child_logger1.debug("This is from child1!")

child_logger2 = logging.getLogger("parent.child2")
child_logger2.addHandler(handler)
child_logger2.propagate = False
child_logger2.debug("This is from child2!")


# 2017-07-03 17:53:33,796 - parent - DEBUG - parent Debug!!
# 2017-07-03 17:53:33,797 - parent - INFO - parent Info!!
# 2017-07-03 17:53:33,797 - parent.child1 - DEBUG - This is from child1!
# 2017-07-03 17:53:33,797 - parent.child1 - DEBUG - This is from child1!
# 2017-07-03 17:53:33,797 - parent.child2 - DEBUG - This is from child2!