Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Chris Angelico <rosuav@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: hasattr() or "x in y"?
Date: Sat, 12 Mar 2016 08:55:20 +1100
Lines: 10
Message-ID: <mailman.9.1457733330.12893.python-list@python.org>
References: <nbve7c$nbo$1@dont-email.me>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
X-Trace: news.uni-berlin.de NOnwm9S4woQr5iGWNLXSRQvTMDTE9oP6XRr3EyoWNeNQ==
Return-Path: <rosuav@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.018
X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'received:209.85.223': 0.03; 'cc:addr:python-list': 0.09; 'things.': 0.15; '2016': 0.16; 'better:': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'wrote:': 0.16; 'cc:2**0': 0.20; 'cc:addr:python.org': 0.20; 'am,': 0.23; 'sat,': 0.23; 'header:In-Reply-To:1': 0.24; 'message- id:@mail.gmail.com': 0.27; 'point': 0.33; 'view,': 0.33; 'received:google.com': 0.35; 'received:209.85': 0.36; 'subject:: ': 0.37; '12,': 0.37; 'received:209': 0.38; 'different': 0.63; 'mar': 0.65; 'smith': 0.76; 'chrisa': 0.84; 'to:none': 0.91
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc; bh=FL9wCcdI9Db+A44LCo/CD73w2JHSbB5fwbzT+65rJIw=; b=ASyUz7UrP9flLj4vD8iX/tlwW3N3s7wXXRtxWwvr///OKjKdQUO1pfsEQG07Ty4vTA 3L8DcyL7BmT5kjEqoSfEbn17X9q/P+jzme9E1g9cwnLQ0uR6zgnwuEGTzhzWB40VUE+b DGoCKt5lyAeNGdxDmNgNwyPysYMVr2c3AkvPIll0LiGAzQtCF9EC+DUvE+nf1zOQPb+D vD+9pLVJH29JFUQ+d6FWguN/2OkAsjN7HZRjM8hxGMHYWe7xg5maEsX/E9GWGmL+YRbG /Jqw3jp1cuOh9IM74qwtKy70auePk7Id2RWZRKgoykwryyRW1YumAvQ3cHNF8L67nSRg LxlA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:cc; bh=FL9wCcdI9Db+A44LCo/CD73w2JHSbB5fwbzT+65rJIw=; b=ah8ZawChLuA6bJSoyh1IAmCn94jjeeUVt8kmLMeGn3zyN76+d/kERhMUDIeKwDCFxG LTl/ZBpU9Qt3epxW7Bz6s9+swpiEPZ0HDKMjZi7CHmb+jyd6HmPPN82qCEi37zzrnrbK fwIVUeUQx1/567UCcB/VTzmDFeWIVmRCLpIjQMXJc548y3wtaUj2MvGabhTNR8FD/cll RUhGfLYi9vO1X6DHs2X2Cg/l+OUpHZMEJOlX1+cLygWNHViNSz9H6C5Zk7O50i9fNc4b vybh8MyGEK37DvjbTwaOGbZMywIgVYQVC8N5bJuVwsdpOKkKy5SW1TD72P4pF1punA+a 3XBA==
X-Gm-Message-State: AD7BkJLM4CCTaes44YQhrCokEtg6WaacctFrE1ybBQbawQf7ZU2Dwe/7KnLPYW0U6k1weDbfRQH8IzuqILyBdQ==
X-Received: by 10.107.138.75 with SMTP id m72mr13136831iod.31.1457733321032; Fri, 11 Mar 2016 13:55:21 -0800 (PST)
In-Reply-To: <nbve7c$nbo$1@dont-email.me>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Xref: csiph.com comp.lang.python:104647

On Sat, Mar 12, 2016 at 8:44 AM, Charles T. Smith
<cts.private.yahoo@gmail.com> wrote:
> From the performance point of view, which is better:
> - hasattr()
> - x in y
>

Mu. They do completely different things.

ChrisA