Python logging: use milliseconds in time format

Question

By default logging.Formatter(\'%(asctime)s\') prints with the following format:

2011-06-09 10:54:40,638

where 638 is the milli

Answer 1

The simplest way I found was to override default_msec_format:

formatter = logging.Formatter('%(asctime)s')
formatter.default_msec_format = '%s.%03d'