Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!ecngs!feeder2.ecngs.de!newsfeed.freenet.ag!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'else:': 0.03; 'elements.': 0.05; 'python': 0.09; 'docs.': 0.09; 'if,': 0.09; 'iterate': 0.09; 'python:': 0.09; 'themselves,': 0.09; 'tuple': 0.09; '"2":': 0.16; 'col': 0.16; 'dictionary.': 0.16; 'nevertheless': 0.16; 'received:74.55.86': 0.16; 'received:74.55.86.74': 0.16; 'received:smtp.webfaction.com': 0.16; 'received:webfaction.com': 0.16; 'tup': 0.16; 'tuple):': 0.16; 'wrote:': 0.17; 'exists': 0.17; 'keys': 0.22; 'sorry,': 0.22; 'tuples': 0.22; "i'd": 0.22; 'this:': 0.23; 'thus': 0.24; 'header:In-Reply-To:1': 0.25; 'header :User-Agent:1': 0.26; 'values': 0.26; 'skip:( 20': 0.28; 'dictionary': 0.29; 'wrap': 0.29; "i'm": 0.29; 'could': 0.32; 'to:addr:python-list': 0.33; 'pm,': 0.35; 'there': 0.35; 'really': 0.36; 'but': 0.36; 'anything': 0.36; 'subject:with': 0.36; 'data': 0.37; 'subject:: ': 0.38; 'easier': 0.38; 'performance': 0.39; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'google': 0.39; 'received:192.168': 0.40; 'your': 0.60; 'most': 0.61; 'first': 0.61; 'skip:n 10': 0.63; 'grab': 0.64; 'dict,': 0.84; 'judges': 0.84; 'say:': 0.84; 'convinced': 0.93 Date: Mon, 18 Feb 2013 20:11:05 -0500 From: Mitya Sirenef User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Dictionaries with tuples or tuples of tuples References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: 40 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1361236273 news.xs4all.nl 6899 [2001:888:2000:d::a6]:38189 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:39150 On 02/18/2013 07:52 PM, Jon Reyes wrote: > So I have a dictionary and the key is a number. The values are either a single tuple or a tuple of tuples. Is there a better way to go about accessing the values of the dictionary? All the tuples contain four elements. > > So say: > col = {"1": (0,1,2,3): "2": ((0,1,2,3),(2,3,4,5))} > > Then to access the values of the tuple I'd do this: > > for key,value in col.iteritems(): > if isinstance(value[0], tuple): > #iterate through the tuples of a tuple > else: > #iterate through the tuple > > At first I was thinking that I could just put the same keys with just single tuples on a dictionary but only one tuple exists when I iterate through the dictionary. I'm sorry, I'm really new at Python and I just grab anything I can when I need it from Google and the Python docs. It would be easier to process if, when adding a single tuple to the dict, you could wrap it inside a tuple: (mytup,) If your data set is not very large and you don't mind the slight performance hit, you can simplify processing step: for k,v in col.iteritems(): if not isinstance(v[0], tuple): v = (v,) for tup in v: ... -- Lark's Tongue Guide to Python: http://lightbird.net/larks/ Although the most acute judges of the witches and even the witches themselves, were convinced of the guilt of witchery, the guilt nevertheless was non-existent. It is thus with all guilt. Friedrich Nietzsche