Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #72260

Re: Binary data exchange

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.datemas.de!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed2a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <ian.g.kelly@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.004
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'mrab': 0.05; 'binary': 0.07; 'method.': 0.07; 'ascii': 0.09; 'expected.': 0.09; 'indeed,': 0.09; 'shifting': 0.09; 'entries.': 0.16; 'whitespace.': 0.16; 'thanks,': 0.17; 'wrote:': 0.18; 'thu,': 0.19; 'appears': 0.22; 'byte': 0.24; 'text,': 0.24; 'header:In- Reply-To:1': 0.27; 'thus': 0.29; 'wonder': 0.29; 'characters': 0.30; 'message-id:@mail.gmail.com': 0.30; 'struct': 0.31; 'anyone': 0.31; 'but': 0.35; 'received:google.com': 0.35; 'subject:data': 0.36; 'doing': 0.36; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; "you're": 0.61; 'first': 0.61; 'email addr:gmail.com': 0.63; 'receiver': 0.84
DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=vZ9cCyM1zAT1bjL6egF/LdIG/uQ1HB6fOd52jGOejWI=; b=zK7WkaIIIfxfoQQSChFdP6QwxB33LnAAV6c+W9GSGq023kOo2ljSQdfjTDSdDmdbaZ xRaRpTjPwcBZvw3AyWFSHiTSHqFyoaZuDrQrQohjE2qtu1DelPro55tfoizwpG2DW8Yo sq/SYCczoXrOF5Q5nx9Rgch3DBU2QAKvfmALe1BZU4PatpOnT6rff+Fq3bEDhy79IFcu e1AKVGu8oRhiafHsIZbtXsGmSBwn2MR9yXzRs9oGQlCFk5vjQbHAjnL19NwEU+UdKtxq rH/P5ZnFrKYldXFTDNDLrHpFMnt9ZyKu0RT794DjmAbyuzBExtef07n2n0s43jQWlpQy GSew==
X-Received by 10.236.13.46 with SMTP id a34mr15177771yha.28.1401405687873; Thu, 29 May 2014 16:21:27 -0700 (PDT)
MIME-Version 1.0
In-Reply-To <5387BE21.4010404@mrabarnett.plus.com>
References <e94b4d33-3ccf-44c7-94c2-4f6f6f566ff0@googlegroups.com> <5387BE21.4010404@mrabarnett.plus.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date Thu, 29 May 2014 17:20:47 -0600
Subject Re: Binary data exchange
To Python <python-list@python.org>
Content-Type text/plain; charset=UTF-8
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.10463.1401405690.18130.python-list@python.org> (permalink)
Lines 16
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1401405690 news.xs4all.nl 2911 [2001:888:2000:d::a6]:55546
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:72260

Show key headers only | View raw

On Thu, May 29, 2014 at 5:09 PM, MRAB <python@mrabarnett.plus.com> wrote:
> On 2014-05-29 23:08, RasikaSrinivasan@gmail.com wrote:
>> the received data for the messages 9 thru 13 are not as expected.
>>
>> I wonder if anyone can see what I am doing wrong?
>>
>> Appreciate any hints. thanks, srini
>>
> I don't understand why you're using the .strip method. That's for
> stripping whitespace from text, but you're not sending and receiving
> text, you're sending and receiving binary data.

And indeed, ASCII characters 9-13 are all whitespace.  The receiver
appears to be stripping off the first byte of the (presumably
little-endian) data and thus shifting the whole struct by a byte for
those entries.

Back to comp.lang.python | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Binary data exchange "RasikaSrinivasan@gmail.com" <RasikaSrinivasan@gmail.com> - 2014-05-29 15:08 -0700
  Re: Binary data exchange "RasikaSrinivasan@gmail.com" <RasikaSrinivasan@gmail.com> - 2014-05-29 15:13 -0700
  Re: Binary data exchange MRAB <python@mrabarnett.plus.com> - 2014-05-30 00:09 +0100
    Re: Binary data exchange "RasikaSrinivasan@gmail.com" <RasikaSrinivasan@gmail.com> - 2014-05-29 16:25 -0700
      Re: Binary data exchange Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-30 00:56 +0100
  Re: Binary data exchange Ian Kelly <ian.g.kelly@gmail.com> - 2014-05-29 17:20 -0600

csiph-web