Change the line to this:
handler = SysLogHandler(address="/dev/log")
This works for me
import logging
import logging.handlers
my_logger = logging.getLogger('MyLogger')
my_logger.setLevel(logging.DEBUG)
handler = logging.handlers.SysLogHandler(address="/dev/log")
my_logger.addHandler(handler)
my_logger.debug('this is debug')
my_logger.critical('this is critical')