creating new custom level logger

custom_log_level.py

import logging
DEBUG_LEVELV_NUM = 35
logging.DEBUG_LEVELV_NUM = DEBUG_LEVELV_NUM
logging.addLevelName(DEBUG_LEVELV_NUM, "DEBUGV")

def debugv(self, message, *args, **kws):
    # Yes, logger takes its '*args' as 'args'.
    if self.isEnabledFor(DEBUG_LEVELV_NUM):
        self._log(DEBUG_LEVELV_NUM, message, args, **kws)
logging.Logger.debugv = debugv


def main():
    l = logging.getLogger("")
    l.setLevel(logging.WARNING)
    # create formatter
    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    # add formatter to ch
    ch = logging.FileHandler("myapp.log")
    ch.setFormatter(formatter)
    # add ch to logger
    l.addHandler(ch)
    l.info('info log')
    l.debug("debug log")
    l.critical("critical log")
    l.debugv('debugv log')
    l.warning('warning log')
    l.error('error log')
    l.info('info log')



if __name__ == '__main__':
    main()