import syslog
from <app-name> import settings

class SysLogging:
    def __init__(self, facility, prefix=None):
        self.facility = facility
        if prefix:
            syslog.openlog(prefix)
    def _logit(self, priority, message):
        syslog.syslog(self.facility | priority, '%s' % (message))
    def debug(self, message):
        self._logit(syslog.LOG_DEBUG, message)
    def info(self, message):
        self._logit(syslog.LOG_INFO, message)
    def notice(self, message):
        self._logit(syslog.LOG_NOTICE, message)
    def warning(self, message):
        self._logit(syslog.LOG_WARNING, message)
    def error(self, message):
        self._logit(syslog.LOG_ERR, message)
    def crit(self, message):
        self._logit(syslog.LOG_CRIT, message)
    def alert(self, message):
        self._logit(syslog.LOG_ALERT, message)
    def emerg(self, message):
        self._logit(syslog.LOG_EMERG, message)

def syslogging(func):
    def caller(*args, **kwargs):
        if 'logger' not in kwargs:
            kwargs['logger'] = SysLogging(settings.SYSLOG_FACILITY, func.__name__)
        return func(*args, **kwargs)
    return caller

@syslogging
def test_func(arg1, arg2=None, logger=None):
    logger.info('%s %s' % (arg1, arg2))

if __name__ == '__main__':
    test_func(1, 'two')