Python using basicConfig method to log to console and file

Question

I don't know why this code prints to the screen, but not to the file? File "example1.log" is created, but nothing is written there.

#!/usr/bin/env python3 import logging  logging.basicConfig(level=logging.DEBUG,                     format='%(asctime)s %(message)s',                     handlers=[logging.FileHandler("example1.log"),                               logging.StreamHandler()]) logging.debug('This message should go to the log file and to the console') logging.info('So should this') logging.warning('And this, too') 

I have "bypassed" this problem by creating a logging object, but it keeps bugging me why basicConfig() approach failed?

PS. If I change basicConfig call to:

logging.basicConfig(level=logging.DEBUG,                     filename="example2.log",                     format='%(asctime)s %(message)s',                     handlers=[logging.StreamHandler()]) 

then all logs are in the file and nothing is displayed in the console.

Answer 1

Try this working fine(tested in python 2.7) for both console and file

# set up logging to file logging.basicConfig(      filename='log_file_name.log',      level=logging.INFO,       format= '[%(asctime)s] {%(pathname)s:%(lineno)d} %(levelname)s - %(message)s',      datefmt='%H:%M:%S'  )  # set up logging to console console = logging.StreamHandler() console.setLevel(logging.DEBUG) # set a format which is simpler for console use formatter = logging.Formatter('%(name)-12s: %(levelname)-8s %(message)s') console.setFormatter(formatter) # add the handler to the root logger logging.getLogger('').addHandler(console)  logger = logging.getLogger(__name__)