Proper way to manage logging for multiple processes.

multilogging.py

# -*- coding: utf-8 -*-
"""
Created on Fri Jun 26 13:16:22 2015

@author: zah
"""

import multiprocessing

import logging

from logging.handlers import QueueHandler, QueueListener

def work(q, level):
    handler = QueueHandler(q)
    logging.getLogger().level = level
    logging.getLogger().handlers = [handler,]
    logging.info("process!!!")

if __name__ == '__main__':
    multiprocessing.set_start_method('spawn')
    logging.basicConfig(format="PATATA: %(message)s", level=logging.INFO)
    logging.warn('xxx')
    #http://stackoverflow.com/questions/9908781/sharing-a-result-queue-among-several-processes
    m = multiprocessing.Manager()
    q = m.Queue(-1)
    #https://docs.python.org/3/howto/logging-cookbook.html
    listener = QueueListener(q, *logging.getLogger().handlers)
    listener.start()
    pool = multiprocessing.Pool(4)
    pool.apply(work, (q,logging.getLogger().level))
    listener.stop()