gg resolve from bbs:
vi /usr/lib/python2.6/site-packages/pxssh.py
#add line 134,135:
    123     def synch_original_prompt (self):
    124
    125         “””This attempts to find the prompt. Basically, press enter and record
    126         the response; press enter again and record the response; if the two
    127         responses are similar then assume we are at the original prompt. “””
    128
    129         # All of these timing pace values are magic.
    130         # I came up with these based on what seemed reliable for
    131         # connecting to a heavily loaded machine I have.
    132         # If latency is worse than these values then this will fail.
    133
    134         self.sendline()
    135         time.sleep(0.5)
    136         self.read_nonblocking(size=10000,timeout=1) # GAS: Clear out the cache before getting the prompt
    137         time.sleep(0.1)

we just put something there before ssh expect read.

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