Python:: Logging module
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11.5 Logging
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Nice snake.
11.5 Logging
The logging module offers
a full featured and flexible logging system. At its simplest, log
messages are sent to a file or to sys.stderr:
import logging logging.debug(’Debugging information’) logging.info(’Informational message’) logging.warning(’Warning:config file %s not found’, ’server.conf’) logging.error(’Error occurred’) logging.critical(’Critical error — shutting down’)
This produces the following output:
WARNING:root:Warning:config file server.conf not found ERROR:root:Error occurred CRITICAL:root:Critical error — shutting down
By default, informational and debugging messages are suppressed and the
output is sent to standard error. Other output options include routing
messages through email, datagrams, sockets, or to an HTTP Server. New
filters can select different routing based on message priority:
DEBUG, INFO, WARNING, ERROR,
and CRITICAL.
The logging system can be configured directly from Python or can be
loaded from a user editable configuration file for customized logging
without altering the application.