[Python][原创]脚本执行

import shlex import datetime  import subprocess import time

def DoShell(cmd, cwd=None, timeout=2, shell=False):     if shell:         cmd_string_list = cmd     else:         cmd_string_list = shlex.split(cmd)     end_time = datetime.datetime.now() + datetime.timedelta(seconds=timeout)     if timeout:         end_time = datetime.datetime.now()     sub=subprocess.Popen(cmd_string_list, cwd=cwd, stdin=subprocess.PIPE, shell=shell, bufsize=4096)     while sub.poll() is None:         time.sleep(0.1)         if timeout:             if end_time <= datetime.datetime.now():                 raise Exception('Timeout:{}'.format(cmd))     return str(sub.returncode)

if __name__ == "__main__":     DoShell('ls')