logging

import logging

def main():
  logging.basicConfig(filename='/tmp/learn-logging.log', level=logging.ERROR, format='%(asctime)s %(levelname)s: %(message)s')
  logging.info("Once upon a midnight dreary,")
  logging.warning('While I pondered weak and weary,')
  logging.error('Over many a quaint and curious volume of forgotten lore,')

if __name__ == '__main__':
  main()