Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed2a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.009
X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'output': 0.05; 'matches': 0.07; 'assigning': 0.09; 'conf': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'python': 0.11; "'w')": 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'stdlib.': 0.16; 'module': 0.19; 'input': 0.22; 'otherwise,': 0.22; 'this?': 0.23; 'header:User-Agent:1': 0.23; 'script': 0.25; 'logging': 0.26; 'header:X-Complaints-To:1': 0.27; 'tried': 0.27; 'correct': 0.29; "doesn't": 0.30; 'too.': 0.31; 'writes:': 0.31; 'figure': 0.32; 'running': 0.33; 'device': 0.34; "can't": 0.35; 'there': 0.35; 'possible': 0.36; 'should': 0.36; 'message- id:@gmail.com': 0.38; 'server': 0.38; 'to:addr:python-list': 0.38; 'little': 0.38; 'anything': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'how': 0.40; 'commands': 0.60; 'is.': 0.60; 'email addr:gmail.com': 0.63; 'therefore': 0.72; 'initiates': 0.84; 'received:89': 0.85; 'device.': 0.93; 'subject:AND': 0.93
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Akira Li <4kir4.1i@gmail.com>
Subject: Re: pexpect - logging input AND output
Date: Wed, 20 Aug 2014 18:51:25 +0400
References: <f6f7175a-37cc-44d0-9e62-b237f51d6ac8@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain
X-Gmane-NNTP-Posting-Host: 89.169.229.68
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)
Cancel-Lock: sha1:D9//dAOhwGyC+3HpR3v1lbVpYoM=
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.13212.1408546304.18130.python-list@python.org>
Lines: 50
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1408546304 news.xs4all.nl 2912 [2001:888:2000:d::a6]:45592
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:76668

sj.constantine@gmail.com writes:

> i have a script running a few commands on a network device. i can't
> seem to figure out how to log both the input and output of what the
> pexpect script initiates and responds to.
>
> child = pexpect.spawn ('telnet '+ ip)
> child.expect ('.*:*')
> child.sendline (user)
> child.expect ('.*:*')
> child.sendline (password)
> child.expect(['.*#*', '.*>*'])
> child.sendline ('enable')
> child.expect (['Password:', '.*#*'])
> child.sendline (password)
> child.expect ('.*#*')
> child.sendline ('conf t')
> child.expect ('.*#*')
> child.sendline ('line vty 0 4')
>
> i have tried both these logging commands:
>
> child.logfile = open('log.txt', 'w')
> child.logfile=sys.stdout
>
> all i get is the input i send with expect/sendline combinations, i
> don't get any of what the device sends, only what i send the device:
>
> user
> password
> enable
> password
> conf t
> line vty 0 4
>
> any ideas of what is the correct way to go about this? just can't get the output!

To be clear, expect() doesn't send anything to the device. expect()
matches as little as possible therefore '.*:*' matches *nothing*.

If it is Python 3 then use pexpect.spawnu(). Otherwise, assigning to
child.logfile should work as is.

There is a telnetlib module in stdlib. x/84 python telnet server might
contain a client too.


--
Akira