Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!feeder.news-service.com!newsfeed.xs4all.nl!newsfeed6.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 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'inspired': 0.07; 'terry': 0.07; '*and*': 0.09; 'dependency': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:80.91.229.12': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'received:lo.gmane.org': 0.09; 'pm,': 0.10; 'exception': 0.12; 'wrote:': 0.14; 'iterator': 0.16; 'reedy': 0.16; 'succinct': 0.16; 'jan': 0.20; 'header:In-Reply-To:1': 0.21; 'framework': 0.22; 'wrote': 0.22; 'subject:question': 0.23; 'sequences.': 0.23; 'function': 0.25; 'tests': 0.26; 'classes': 0.26; 'definition': 0.26; 'helpful': 0.28; 'cases.': 0.30; 'followup': 0.30; 'i/o': 0.30; 'ago': 0.31; 'header:X-Complaints-To:1': 0.32; 'to:addr :python-list': 0.33; '(for': 0.33; 'external': 0.33; 'error': 0.33; 'rather': 0.34; 'header:User-Agent:1': 0.35; 'latter': 0.35; 'using': 0.35; 'test': 0.35; 'something': 0.37; 'designing': 0.37; 'sequence': 0.37; 'received:org': 0.38; 'but': 0.38; 'subject:: ': 0.38; 'some': 0.38; 'said': 0.39; 'header:Mime-Version:1': 0.39; 'add': 0.39; 'to:addr:python.org': 0.39; 'current': 0.40; 'custom': 0.60; 'within': 0.60; 'year': 0.61; 'here': 0.66; 'whole.': 0.67; 'accepts': 0.68; 'specialized': 0.69; '11:33': 0.84; 'reporting,': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Terry Reedy Subject: Re: Lambda question Date: Mon, 06 Jun 2011 21:56:51 -0400 References: <87fwnor5dd.fsf@dpt-info.u-strasbg.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: rain.gmane.org User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.17) Gecko/20110414 Lightning/1.0b2 Thunderbird/3.1.10 In-Reply-To: X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 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: 82.94.164.166 X-Trace: 1307411829 news.xs4all.nl 49044 [::ffff:82.94.164.166]:54372 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:7126 On 6/6/2011 1:29 PM, rusi wrote: > On Jun 5, 11:33 pm, Terry Reedy wrote: >> Let me add something not said much here about designing functions: start >> with both a clear and succinct definition *and* test cases. (I only >> started writing tests first a year ago or so.) > > I am still one year in the future :-; > Which framework do you recommend? Nose? test.py? As I explained in a followup post, I am currently using a custom function test function that accepts i/o pairs with exception classes as 'outputs'. It was inspired by test.py, but that is both overkill and an unwanted external dependency for my current project. I also wrote and use an iterator test function and a specialized iterator test function for iterators that return sequences. (For better error reporting, the latter tests items within each sequence rather than each sequence as a whole. This is especially helpful when the items are themselves collections, as in some combinatorial iterators.) -- Terry Jan Reedy