python进程包装器

Question

我需要用 python 编写一个进程包装器，它将启动应用程序并在失败时重新启动它。这将被记录到从命令行传入的指定日志位置。这可能吗？

Answer 1

>>> from subprocess import Popen
>>> def spawner(cmd_list):
...     while True:
...         print "Running proc..."
...         mon_proc = Popen(cmd_list)
...         print "Proc exit: %s" % mon_proc.wait()
... 
>>> spawner(['/bin/sleep', '3'])
Running proc...
Proc exit: 0
Running proc...
Proc exit: 0
Running proc...
Proc exit: 0
Running proc...