子進程等待腳本完成

Question

我正在調用子進程（期望腳本可以運行一些命令），並且需要等到它完成以啟動另一個功能，但是與此同時，我認為它只等到shell命令完成后才開始，而不是期望腳本。 是否可以等待整個過程完成？

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

Answer 1

采用

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期望實現

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