Making logging.getLogger() simpler

[Lie Ryan]

I was expecting this to work:

  import logging
  logger = logging.getLogger(__name__)
  logger.warn('this is a warning')

instead it produced the error:

  No handlers could be found for logger "__main__"


However, if instead I do:

  import logging
  logging.warn('creating logger')
  logger = logging.getLogger(__name__)
  logger.warn('this is a warning')

then it does work.

Is there any reason why getLogger()-created logger shouldn't
automatically create a default handler?