Writing to syslog with Python's logging library

logtest.py

import logging
import logging.handlers

log = logging.getLogger(__name__)

log.setLevel(logging.DEBUG)

handler = logging.handlers.SysLogHandler(address = '/dev/log')

formatter = logging.Formatter('%(module)s.%(funcName)s: %(message)s')
handler.setFormatter(formatter)

log.addHandler(handler)


def hello():
	log.debug('this is debug')
	log.critical('this is critical')

if __name__ == '__main__':
	hello()

output

matt@Jenkins:~$ tail -n 2 /var/log/syslog
Feb  9 11:56:19 Jenkins logtest.hello: this is debug
Feb  9 11:56:19 Jenkins logtest.hello: this is critical

@sweenzor How to redirect stderr to syslog with above script?

@khurshid-alam I think you misunderstand the intent of the code. This demonstrates the origination of NEW messages, written to syslog.

I think what you are really asking is "how can take stderr from an existing script, and redirect that to syslog?" If so: http://urbanautomaton.com/blog/2014/09/09/redirecting-bash-script-output-to-syslog/ (or some variant of that for your use case...)