Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Mark Lawrence Newsgroups: comp.lang.python Subject: Re: The Cost of Dynamism (was Re: Pyhon 2.x or 3.x, which is faster?) Date: Mon, 21 Mar 2016 18:18:41 +0000 Lines: 21 Message-ID: References: <56e44258$0$1598$c3e8da3$5496439d@news.astraweb.com> <8737rvxs89.fsf@elektro.pacujo.net> <56e7483d$0$1608$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de C2yPKaYDpdh8Qi8XDTjY7gDxsCzPxPZPllztz3iFHmlw== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.005 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'from:addr:yahoo.co.uk': 0.05; 'bug.': 0.07; 'inherited': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:which': 0.09; 'bug': 0.10; 'python': 0.10; "hasn't": 0.15; 'received:194.126': 0.16; 'received:80.91.229.3': 0.16; 'received:io': 0.16; 'received:plane.gmane.org': 0.16; 'received:psf.io': 0.16; 'subject:?)': 0.16; 'wrote:': 0.16; 'language': 0.19; 'lawrence': 0.22; 'seems': 0.23; 'header:In-Reply-To:1': 0.24; 'sort': 0.25; 'header:User-Agent:1': 0.26; 'header:X-Complaints-To:1': 0.26; 'scale': 0.27; 'rules': 0.31; 'fixed': 0.31; 'language.': 0.32; 'url:python': 0.33; 'something': 0.35; 'should': 0.36; 'url:org': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:org': 0.37; 'why': 0.39; 'to:addr:python.org': 0.40; 'mark': 0.40; 'url:3': 0.60; 'subject:The': 0.61; 'received:194': 0.61; 'charset:windows-1252': 0.62; 'our': 0.64; 'where:': 0.66; 'here': 0.66; 'hour': 0.69; '(while': 0.84; 'out!': 0.84; 'pythonistas,': 0.84; 'url:reference': 0.91 X-Injected-Via-Gmane: http://gmane.org/ X-Gmane-NNTP-Posting-Host: 248.80.126.194.pool.dsl.daisyplc.net User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0 In-Reply-To: X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:105388 On 21/03/2016 17:31, BartC wrote: > > (While I here, something that came up yesterday: why hasn't Python fixed > the bug it seems to have inherited from C, where: > > a << b + c > > is evaluated as 'a << (b+c)'? That cost me half an hour to sort out! << > and >> scale numbers just like * and /, so should have the same > precedence.) > Python is not C. This is not a bug. The rules are here https://docs.python.org/3/reference/expressions.html#operator-precedence -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence