pxssh远程执行命令出错处理
测试环境： Ubuntu12.04
python-pexpect安装： apt-get install python-pexpect
测试脚本：
#!/usr/bin/env python
import pxssh
import getpass
try:
s = pxssh.pxssh()
hostname = raw_input('hostname: ')
username = raw_input('username: ')
password = getpass.getpass('please input password: ')
s.login(hostname, username, password)
s.sendline('uptime')
s.prompt()
print s.before
s.sendline('ls -l')
s.prompt()
print s.before
s.sendline('df')
s.prompt()
print s.before
s.logout()
except pxssh.ExceptionPxssh, e:
print "pxssh failed on login."
print str(e)
执行时会报错：
Traceback (most recent call last):
File "pxsshsimple1.py", line 9, in <module>
s.login (hostname, username, password)
File "/usr/lib/python2.7/dist-packages/pxssh.py", line 243, in login
if not self.synch_original_prompt():
File "/usr/lib/python2.7/dist-packages/pxssh.py", line 134, in synch_original_prompt
self.read_nonblocking(size=10000,timeout=1) # GAS: Clear out the cache before getting the prompt
File "/usr/lib/python2.7/dist-packages/pexpect.py", line 824, in read_nonblocking
raise TIMEOUT ('Timeout exceeded in read_nonblocking().')
pexpect.TIMEOUT: Timeout exceeded in read_nonblocking().
修改/usr/lib/python2.7/dist-packages/pxssh.py文件，在line134行前增加：
self.sendline() time.sleep(0.5)