Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder5.xlned.com!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'debug': 0.05; 'sys': 0.05; 'returned.': 0.07; 'session.': 0.07; 'python': 0.09; '"\\n")': 0.09; '")': 0.09; 'pointers': 0.09; 'stating': 0.09; 'cc:addr :python-list': 0.10; '2.7': 0.13; 'steve': 0.13; '"),': 0.16; '"..."': 0.16; 'away....': 0.16; 'galaxy': 0.16; 'input.': 0.16; 'isnt': 0.16; 'received:209.85.216.53': 0.16; 'skip:> 20': 0.16; 'telnetlib': 0.16; 'tried:': 0.16; 'mon,': 0.16; 'wrote:': 0.17; '>>>': 0.18; 'windows': 0.19; 'feb': 0.19; 'email addr:gmail.com>': 0.20; 'skip:" 30': 0.20; 'error.': 0.21; '"",': 0.22; '>>>': 0.22; 'assuming': 0.22; 'combination': 0.22; 'help.': 0.22; 'cc:2**0': 0.23; 'raise': 0.24; 'cc:no real name:2**0': 0.24; 'command': 0.24; 'tried': 0.25; 'cc:addr:python.org': 0.25; 'header:In-Reply-To:1': 0.25; 'looks': 0.26; 'appreciated.': 0.26; '(most': 0.27; 'am,': 0.27; 'older': 0.27; 'skip:> 10': 0.27; 'message-id:@mail.gmail.com': 0.27; '--------': 0.28; 'chris': 0.28; 'run': 0.28; 'far,': 0.29; 'initiate': 0.29; 'date:': 0.29; 'url:mailman': 0.29; 'skip:& 10': 0.29; 'connection': 0.30; 'skip:& 30': 0.30; 'url:python': 0.32; 'file': 0.32; 'url:listinfo': 0.32; 'traceback': 0.33; 'code:': 0.33; 'weeks': 0.33; 'skip:& 20': 0.33; 'received:google.com': 0.34; 'thanks': 0.34; 'received:209.85': 0.35; 'really': 0.36; 'subject:': 0.36; 'but': 0.36; 'url:org': 0.36; 'email addr:python.org': 0.36; 'useful': 0.36; 'thank': 0.36; 'communicate': 0.37; 'received:209': 0.37; 'far': 0.37; 'received:209.85.216': 0.37; 'subject:: ': 0.38; 'from:': 0.38; 'some': 0.38; 'gives': 0.39; 'instead': 0.39; 'hello,': 0.39; 'skip:" 10': 0.40; 'subject:-': 0.40; 'help': 0.40; 'url:mail': 0.40; 'think': 0.40; 'your': 0.60; 'back': 0.62; 'email name :python-list': 0.62; 'email addr:gmail.com': 0.63; 'dont': 0.64; 'here': 0.65; 'camera': 0.65; 'risk': 0.66; 'hoping': 0.72; '2013': 0.84; 'conversation': 0.91; 'obvious,': 0.91 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=lRRMtVECyZQn/1ZkX+NN2wG6vdOpvWP2BJ2gCq/tE5Q=; b=mfpgACXXdK9Szut1ERg0fRNNYu4sqqt0NKzzfApyDCFcHnj5fh63qSQD30lRYCoOvl 4IeudAF+fdPHmdCkWaPAXiEdMsjE00QkrHClC964NKBOT/UVVNLeWu1+/Edwcuz1iD2l PqlQEf744DdZh7Q7TGIxP7cihqFJOEkNRKkfpipGXtcM4gjsnjx+gn/6dlOGncwd2AUh qIG1HDUS6CHEfhaWR3lvbRrMDWxASB07/6xaML2qhFuRceG5QVjeu4qX994JY88zMmJZ SQ0tzgpYbosI7rxm2KS/Tfzb+UGqywJsvffxJ/wV+jwlPbtwW8kXOCVoDxFjsM5yowKx +5Ag== MIME-Version: 1.0 X-Received: by 10.224.110.1 with SMTP id l1mr13404503qap.21.1361824038038; Mon, 25 Feb 2013 12:27:18 -0800 (PST) In-Reply-To: <9qya2949lwvwn69b2oqy5xya.1361820262242@email.android.com> References: <9qya2949lwvwn69b2oqy5xya.1361820262242@email.android.com> Date: Mon, 25 Feb 2013 12:27:17 -0800 Subject: Re: telnet to Cognex In-Sight 4001 camera From: Chris Annin To: "square.steve" Content-Type: multipart/alternative; boundary=20cf3074d56008b52204d6925ef0 Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 141 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1361824040 news.xs4all.nl 6970 [2001:888:2000:d::a6]:60729 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:39911 --20cf3074d56008b52204d6925ef0 Content-Type: text/plain; charset=ISO-8859-1 Ive tried: read_until("Login: "), read_until("User: ") and read_all() all 3 ways return the same thing: "Welcome to In-Sight(R) 4001 Session 1\r\nUser:" then I put in: tn.write("admin\r\n") or tn.write(USER + "\r\n") or tn.write(USER + "\r") or tn.write(USER + "\n") Ive tried every combination I can think of but after that when I put in tn.read_all() I get back ",,," and if I do any type of tn.read_until - it gives me the traceback error. thanks again for all your input. really appreciate. Chris On Mon, Feb 25, 2013 at 11:24 AM, square.steve wrote: > At the risk of stating the blindingly obvious, have you run a 'real' > telnet session to see what a successful conversation looks like? Might > give you some useful pointers for your debug session. > > Steve > > > Sent from a Galaxy far, far away.... > > > -------- Original message -------- > From: chris.annin@gmail.com > Date: > To: python-list@python.org > Subject: telnet to Cognex In-Sight 4001 camera > > > Hello, ive been struggling with this for a couple weeks now and was > hoping someone might be able to help. I have an older Cognex camera that I > need to communicate with via telnet. I can get a response from the camera > when I initiate a telnet session but I dont seem to get any response when I > write the user name to the camera - I havnt been able to get any response > writing anything. Im using python 2.7 and windows xp. here is the code: > [code] > >>>import sys > >>>import telnetlib > >>>HOST = "10.31.18.21" > >>>USER = "admin" > >>>tn = telnetlib.Telnet(HOST) > >>>tn.read_until("Login: ") > "Welcome to In-Sight(R) 4001 Session 1\r\nUser:" > >>>tn.write(USER + "\r\n") > >>>tn.read_until("User: ") > Traceback (most recent call last): > File "", line 1, in > File "C:\Python27\lib\telnetlib.py", line 319, > return self.read_very_lazy() > File "C:\Python27\lib\telnetlib.py", line 395, > raise EOFError, 'telnet connection closed' > EOFError: telnet connection closed > >>> > [\code] > > if i do a read_all instead of read_until for user I just get "..." > returned. Im assuming tn.write command isnt working? any help would be > greatly appreciated. > > thank you > > Chris > -- > http://mail.python.org/mailman/listinfo/python-list > --20cf3074d56008b52204d6925ef0 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Ive tried: read_until("Login: &qu= ot;), read_until("User: ") and read_all()=A0 all 3 ways return th= e same thing: "Welcome to In-Sight(R) 4001 Session 1\r\nUser:"
then I put in:

tn.write("admin\r\n")
or
tn.writ= e(USER + "\r\n")
or
tn.write(USER + "\r")
or
tn.write(USER + "\n")

Ive tried ever= y combination I can think of but after that when I put in tn.read_all() I g= et back ",,," and if I do any type of tn.read_until - it gives me= the traceback error.=A0 thanks again for all your input.=A0 really appreci= ate.

Chris


On Mon, Feb 25, 2013 at 11:24 AM, square.steve <square.st= eve@gmail.com> wrote:
At the risk of stating the blindin= gly obvious, have you run a 'real' telnet session to see what =A0a = successful conversation looks like? Might give you some useful pointers for= your debug session.

Steve


Sent from a Galaxy far, far away....


--= ------ Original message --------
From: chris.annin@gmail.com
Date:
To: = python-list@python.org
Subject: telnet to Cognex In-Sight 4001 came= ra


Hello,=A0 ive been struggling with this for a couple weeks = now and was hoping someone might be able to help.=A0 I have an older Cognex= camera that I need to communicate with via telnet.=A0 I can get a response= from the camera when I initiate a telnet session but I dont seem to get an= y response when I write the user name to the camera -=A0 I havnt been able = to get any response writing anything. Im using python 2.7 and windows xp.= =A0 here is the code:
[code]
>>>import sys
>>>import telnetlib
>>= ;>HOST =3D "10.31.18.21"
>>>USER =3D "admin&q= uot;
>>>tn =3D telnetlib.Telnet(HOST)
>>>tn.read_un= til("Login: ")
"Welcome to In-Sight(R) 4001 Session 1\r\nUser:"
>>>t= n.write(USER + "\r\n")
>>>tn.read_until("User: &= quot;)
Traceback (most recent call last):
=A0 File "<stdin>= ;", line 1, in <module>
=A0 File "C:\Python27\lib\telnetlib.py", line 319,
=A0=A0=A0 r= eturn self.read_very_lazy()
=A0 File "C:\Python27\lib\telnetlib.py&= quot;, line 395,
=A0=A0=A0 raise EOFError, 'telnet connection closed= '
EOFError: telnet connection closed
>>>
[\code]

if i do a read_all instead of read_until for= user I just get "..." returned.=A0 Im assuming tn.write command = isnt working?=A0 any help would be greatly appreciated.

thank you
Chris
--
= http://mail.python.org/mailman/listinfo/python-list

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