Making logging.getLogger() simpler

Lie Ryan lie.1296 at gmail.com
Sat Sep 18 18:35:15 CEST 2010


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?



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