Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!newsreader4.netcologne.de!news.netcologne.de!xlned.com!feeder7.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 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'output': 0.04; 'compiler': 0.05; 'debug': 0.05; 'type,': 0.07; 'lawrence': 0.09; 'terry': 0.09; '~ethan~': 0.09; 'def': 0.10; "wouldn't": 0.11; ':-)': 0.13; 'b):': 0.16; 'declaration': 0.16; 'from:addr:hobson42': 0.16; 'from:name:ian': 0.16; 'inputs': 0.16; 'received:192.168.0.12': 0.16; 'received:81.103': 0.16; 'received:81.103.221': 0.16; 'received:81.103.221.35': 0.16; 'received:ispmail.ntl.com': 0.16; 'received:ntl.com': 0.16; 'reedy': 0.16; 'reply-to:addr:hobson42': 0.16; 'silly': 0.16; 'unittests': 0.16; 'wrote:': 0.17; 'processor': 0.17; '>>>': 0.18; 'meant': 0.21; 'header:In-Reply- To:1': 0.25; 'header:User-Agent:1': 0.26; 'am,': 0.27; 'checking': 0.27; 'restrict': 0.27; '>>>>': 0.29; 'declared': 0.29; "i'm": 0.29; "skip:' 10": 0.30; 'usually': 0.30; 'function': 0.30; 'code': 0.31; '(and': 0.32; 'surely': 0.33; 'to:addr:python-list': 0.33; 'received:192.168.0': 0.35; 'message-id:@gmail.com': 0.36; 'quite': 0.37; 'subject:: ': 0.38; 'mark': 0.38; 'easier': 0.38; 'sure': 0.38; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'where': 0.40; 'received:192.168': 0.40; 'your': 0.60; 'subject:, ': 0.61; 'strange': 0.62; 'it!': 0.64; 'limited.': 0.64; 'making': 0.64; 'header:Reply-To:1': 0.68; 'reply-to:no real name:2**0': 0.72; 'reply-to:addr:gmail.com': 0.79; "'if": 0.84; 'furman': 0.84; 'ethan': 0.91; 'kat': 0.91; 'subject:skip:E 10': 0.95 Date: Tue, 17 Jul 2012 19:59:09 +0100 From: Ian User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Encapsulation, inheritance and polymorphism References: <3vnfd9-343.ln1@satorlaser.homedns.org> <-8SdnVrXGqie25jNnZ2dnUVZ7qKdnZ2d@bt.com> <5005A103.9050802@stoneleaf.us> <5005B26D.1080704@stoneleaf.us> In-Reply-To: <5005B26D.1080704@stoneleaf.us> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Cloudmark-Analysis: v=1.1 cv=AUhbpHVS+xhHrj9wLCYAQoYnFLYUZdbP8UM0GmH2jwk= c=1 sm=0 a=oLMWbjUy37cA:10 a=wlnPGDZH2tUA:10 a=nDghuxUhq_wA:10 a=hcRjaz30x_AA:10 a=d3ZwFMNkyaEA:10 a=8nJEP1OIZ-IA:10 a=Ln4HoJH8E3k37F2YBDUA:9 a=wPNLvfGTeEIA:10 a=HpAAvcLHHh0Zw7uRqdWCyQ==:117 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: hobson42@gmail.com 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: 37 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1342554452 news.xs4all.nl 6888 [2001:888:2000:d::a6]:40702 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:25537 On 17/07/2012 19:43, Ethan Furman wrote: > Mark Lawrence wrote: >> On 17/07/2012 18:29, Ethan Furman wrote: >>> Terry Reedy wrote: >>>> On 7/17/2012 10:23 AM, Lipska the Kat wrote: >>>> >>>>> Well 'type-bondage' is a strange way of thinking about compile >>>>> time type >>>>> checking and making code easier to read (and therefor debug >>>> >>>> 'type-bondage' is the requirement to restrict function inputs and >>>> output to one declared type, where the type declaration mechanisms are >>>> usually quite limited. >>>> >>>> >>> def max(a, b): >>>> if a <= b: return a >>>> return b >>> >>> >>> Surely you meant 'if a >= b: . . .' >>> >>> No worries, I'm sure your unittests would have caught it. ;) >>> >>> ~Ethan~ >> >> Wouldn't the compiler have caught it before the unittests? :-) > > Silly me, the word processor would have caught it! > > ~Ethan~ No compiler can find as many faults as publishing your code on a mailing list!!! :) Ian