python loggin记录日志，traceback打印stack

import time

import logging

log = logging.getLogger('daemon_test_home')

hdlr = logging.FileHandler("/tmp/ZL_test_home.log")

formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')

hdlr.setFormatter(formatter)

log.addHandler(hdlr)

log.setLevel(logging.DEBUG)

      

import StringIO

fp = StringIO.StringIO()

traceback.print_stack(file = fp )

message = fp.getvalue()