Question

我正在调用子进程（希望脚本运行一些命令）并且需要等到它完成才能启动另一个函数，但是我认为它只等到shell命令结束，而不是期望脚本。是否有可能等待整个过程完成？

 p111 = subprocess.Popen('gnome-terminal -e "perl /tmp/expect',shell=True)  
    os.waitpid(p111.pid,0)
    smo_final()

Answer 1

使用

https://docs.python.org/2/library/subprocess.html#subprocess.Popen.wait

  p11 = subprocess.Popen('gnome-terminal -e "perl /tmp/expect',shell=False)  
  p11.wait()

Answer 2

使用pexpect，python expect implementation

import pexpect
...
child = pexpect.spawn(cmd) # the command you want to run
child.expect(str_expect) # the string you expect 
child.sendline(str_response) # the string with which you'd like to respond 
child.wait() # wait for the child to exit
...
# the rest of your code here

子进程等待期望脚本完成

2 个答案: