telnetlib strange behavior?

[bragib at my-deja.com]

I am trying to telnet from a UNIX box to an NT to get the doskeys.
The NT that I login to runs a couple of .bat scripts which clear the
screen set up some stuff etc.  When I try to do a read_all() it fails
the first time with the exception:
Traceback (innermost last):
  File "telnet.py", line 17, in ?
    tn.read_all()
  File "/usr/abaqus60/5-0_copy/source/Python/Lib/telnetlib.py", line
229, in read_all
    self.fill_rawq()
  File "/usr/abaqus60/5-0_copy/source/Python/Lib/telnetlib.py", line
367, in fill_rawq
    buf = self.sock.recv(50)
socket.error: (131, 'Connection reset by peer')


That is why I put the first try in a try: except: clause.  The second
time I try to do a read_all() it works fine but I don't get all the keys
I am missing some of the first keys.  I assume that the first read_all()
actually did read some stuff and then the second read got the rest.

Can anyone see anything obviously wrong with this.


Thanks, Bragi

import sys
import telnetlib
HOST = 'shadow'
USER = 'bragi'
tn = telnetlib.Telnet(HOST)
tn.open(HOST)
tn.read_until("login: ")
tn.write(USER+'\r')
tn.read_until("password: ")
tn.write('my_password\r')
tn.write('doskey /macros\r')
tn.write('exit\r')
print 'done'
try:
    all1 = tn.read_all()
except:
    pass
all = tn.read_all()
print all









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