Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!news2.arglkargh.de!news.mixmin.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed1.news.xs4all.nl!xs4all!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 0.007 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'algorithm': 0.04; 'widely': 0.05; 'memory.': 0.07; 'smallest': 0.07; 'bits': 0.09; 'subject:How': 0.10; '8-bit': 0.16; 'assigns': 0.16; 'bits.': 0.16; 'byte,': 0.16; 'merely': 0.16; 'rewriting': 0.16; 'unpacking': 0.16; 'wrote:': 0.18; '>>>': 0.22; 'code,': 0.22; 'header:User-Agent:1': 0.23; 'byte': 0.24; 'certain': 0.27; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'character': 0.29; 'characters': 0.30; 'ok.': 0.31; 'languages': 0.32; 'subject:from': 0.34; 'common': 0.35; 'but': 0.35; '+0200,': 0.36; 'machine.': 0.36; 'unit': 0.37; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'either': 0.39; 'received:172.20': 0.60; 'such': 0.63; 'received:74.208': 0.68; 'subject:get': 0.81; 'received:74.208.4.194': 0.84; 'edwards': 0.91; '2013': 0.98 Date: Mon, 03 Jun 2013 18:07:41 -0400 From: Dave Angel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130510 Thunderbird/17.0.6 MIME-Version: 1.0 To: python-list@python.org Subject: Re: How to get an integer from a sequence of bytes References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V02:K0:4kz81Tclw8oyFSynGpOdlMeDW7olnR7xMqW9NU0kJ09 iBf0dXDcRSTZqiV7jceDgd0QYve2Ul5lFzH3rFrlXKbYwPq+Mj /oyFZxAhkSx9mN21y8XGJQqI8JrkyM1rF6ilAEqT2e9mkeamNG cOtnVvTx9u35TOGsK4IRVl10IqG39GJqbjY4r3EKCJlRJMHNwa yVKHFMOGwf/W1rETzigAgSHRlYvSVnJoNk6PNDnsasTrpKtfr/ 3N+iZCCyDI+W8Uj3cTyY93BiOBEdQO6MK2UD2jbW/k4WfDMckp s+3cK2F8fJuLBJ9lw/5Eb9BXRkUi6sKS2Tnx75QQvDkc3MOKg= = 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: 23 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1370297269 news.xs4all.nl 15942 [2001:888:2000:d::a6]:35453 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:46810 On 06/03/2013 10:31 AM, Grant Edwards wrote: > On 2013-06-03, Dennis Lee Bieber wrote: >> On Sun, 02 Jun 2013 21:25:45 +0200, Mok-Kong Shen >> declaimed the following in >> gmane.comp.python.general: >> >> >>> b'7' is the byte with the character 7 in a certain code, so that's >>> ok. In other PLs one assigns an int to a byte, with that int in either >> >> In other languages "byte" is an 8-bit signed/unsigned numeric. > > That's a common assumption, but historically, a "byte" was merely the > smallest addressable unit of memory. The size of a "byte" on widely > used used CPUs ranged from 4 bits to 60 bits. > I recall rewriting the unpacking algorithm to get the 10 characters from each byte, on such a machine. -- DaveA