How to set the logging level to DEBUG in the Python interpreter without using basicConfig()

gistfile1.txt

import logging
rootLogger = logging.getLogger()
rootLogger.setLevel(logging.DEBUG)

# Try logging.debug('foo') now!
#
# Note:  if you have a module that uses a logger and you want it to log interactively, you'll need to 
# import/reload it *after* running this code.
#
# This may also help:
consoleLogger = logging.StreamHandler()
consoleLogger.setLevel(logging.DEBUG)
rootLogger.addHandler(consoleLogger)