最近写了个python脚本，在服务器上运行，经常莫名其妙的退出，也不知道原因，后面查了资料得到下面两个方法去捕捉退出的发生，一个是捕捉kill信号，另一个是注册atexit函数
例子：
import os
import sys
import time
import atexit
import signal
import traceback
def term_sig_handler(signum, frame):
print 'catched singal: %d' % signum
sys.exit()
@atexit.register
def atexit_fun():
print 'i am exit, stack track:'
exc_type, exc_value, exc_tb = sys.exc_info()
traceback.print_exception(exc_type, exc_value, exc_tb)
if __name__ == '__main__':
# catch term signal
signal.signal(signal.SIGTERM, term_sig_handler)
signal.signal(signal.SIGINT, term_sig_handler)
while True:
print 'hello'
time.sleep(3)
输出
hello
hello
hello
hello
hello
hello
hello
catched singal: 15
i am exit, stack track: None
