python远程修改配置文件

#/usr/bin/env python

import pexpect
import sys

ip = "192.168.1.116"
user = "root"
passwd = "vision"
target_file = "/usr/local/src/1.txt"

child = pexpect.spawn("/usr/bin/ssh", [user+'@'+ip])
fout = file('/usr/local/src/package.log', 'w')
child.logfile = fout

try:
child.expect('(?i)passWord:')
child.sendline(passwd)
child.expect('#')
child.sendline("sed -i 's#victor#david#g' "+target_file)
child.expect('#')
child.sendline('exit')
fout.close()

except EOFError as EOF:
print("EOF")
except Exception as TIMEOUT:
print("TIMEOUT")