Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Random832 Newsgroups: comp.lang.python Subject: Re: Differences between Class(Object) and Class(Dict) for dictionary usage? Date: Tue, 26 Apr 2016 23:56:00 -0400 Lines: 30 Message-ID: References: <5720357B.4060009@icloud.com> <1461729360.3276080.590752673.7A6E1041@webmail.messagingengine.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de JByQCYzqqEyQDljq40XTHQxJYB3btjhvOjpBoWnmLtag== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.011 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'attributes': 0.07; 'dict': 0.09; 'received:internal': 0.09; 'subject:Object': 0.09; 'def': 0.13; 'subject: \n ': 0.15; 'variables': 0.15; 'message- id:@webmail.messagingengine.com': 0.16; 'received:10.202': 0.16; 'received:10.202.2': 0.16; 'received:10.202.2.212': 0.16; 'received:66.111': 0.16; 'received:66.111.4': 0.16; 'received:io': 0.16; 'received:messagingengine.com': 0.16; 'received:psf.io': 0.16; 'self)': 0.16; 'subject:between': 0.16; 'subject:usage': 0.16; 'wrote:': 0.16; 'variable': 0.18; 'otherwise,': 0.20; 'code.': 0.23; 'seems': 0.23; "haven't": 0.24; 'header:In-Reply- To:1': 0.24; 'discussion': 0.24; "doesn't": 0.26; 'object,': 0.27; 'values': 0.28; 'dictionary': 0.29; "i'm": 0.30; 'skip:_ 10': 0.32; 'subject:) ': 0.32; 'point': 0.33; 'class': 0.33; 'tue,': 0.34; 'sometimes': 0.35; 'to:addr:python-list': 0.36; 'subject:?': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'seem': 0.37; '(with': 0.38; 'difference': 0.38; 'received:66': 0.38; 'mean': 0.38; 'rather': 0.39; 'to:addr:python.org': 0.40; 'header:Message- Id:1': 0.61; 'greetings,': 0.61; 'great': 0.63; 'other.': 0.64; 'benefit': 0.66; 'internet': 0.70; '26,': 0.72; 'dict.': 0.84; 'or:': 0.84; 'approach.': 0.91; 'played': 0.91; 'subject:Class': 0.91 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.com; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=p567FGzRK6xfb2m/fItZ2xO6UJU=; b=X9Ct1/ Mp0vPitNKX/L1BePDq4H3nv9SI2cDUsv0t4sFr+8cg+9JrSX9jDzY/jCz9iLV635 JjCFOodHps5VIUQLo+LfXhrRZmc7i0RT5ylZ5rui/gPXfXburWYpvFLcW0kwkRxz ZCXc30ucnYt7LRg5mUxMyaij7Hs1hKPqUP4Yw= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=p567FGzRK6xfb2m /fItZ2xO6UJU=; b=m6gYKlweUt5r4eT2Ax/d77a9/W8KXs0CShSSU5KYRRrOjGi oiFnIevItWay5N6e6bgknwpGxlt8Bew/ZpSZAqmcCABjmfqqnWic4p24lUQn6iHl MfC9uHCXDVyOtICXGzoPMGo6J8P6n95qlwsKwEqSDHcdNd6mqVGug/P9kOi0= X-Sasl-Enc: qBP8X4QL5hfPJHujeVmyPFP+5j/i6YDrIwNOJb8bWh90 1461729360 X-Mailer: MessagingEngine.com Webmail Interface - ajax-b462e126 In-Reply-To: <5720357B.4060009@icloud.com> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: <1461729360.3276080.590752673.7A6E1041@webmail.messagingengine.com> X-Mailman-Original-References: <5720357B.4060009@icloud.com> Xref: csiph.com comp.lang.python:107705 On Tue, Apr 26, 2016, at 23:43, Christopher Reimer wrote: > Greetings, > > If I'm using a dictionary to store variables for an object, and > accessing the variable values from dictionary via property decorators, what exactly do you mean by property decorators? If you're just accessing them in a dictionary what's the benefit over having the values be simple attributes rather than properties? > would it be better to derive the class from object or dict? > > class Test1(object): > def __init__(self): > self.state = {'key': 'value'} > > Or: > > class Test2(dict): > def __init__(self): > self.__dict__ = {'key', 'value'} > > I haven't seen a good pro/con discussion on the Internet for using one > over the other. I played with both in my code. Doesn't seem to make a > great difference either way. Using object seems to be the most simplest > approach. I sometimes use dict (with self.__dict__ = self) if I want to be able to access values via either obj['key'] or obj.key (a la Javascript). Otherwise, there's no point in using dict.