En esta página está muy bien explicado. Dice lo siguiente:
A very common situation is that of recording logging events in a file, so let’s look at that next. Be sure to try the following in a newly-started Python interpreter, and don’t just continue from the session described above:
import logging logging.basicConfig(filename='example.log',level=logging.DEBUG) logging.debug('This message should go to the log file') logging.info('So should this') logging.warning('And this, too')
And now if we open the file and look at what we have, we should find the log messages:
DEBUG:root:This message should go to the log file INFO:root:So should this WARNING:root:And this, too
logging.warning(‘%s before you %s’, ‘Look’, ‘leap!’)
WARNING:root:Look before you leap!
To display the date and time of an event, you would place ‘%(asctime)s’ in your format string:
logging.warning(‘is when this event was logged.’)
which should print something like this:
2010-12-12 11:41:42,612 is when this event was logged.
Entonces, lo que yo quiero es:
logging.debug(‘%s before you %s’, ‘Look’, ‘leap!’)