Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Random832 Newsgroups: comp.lang.python Subject: Re: psss...I want to move from Perl to Python Date: Fri, 29 Jan 2016 10:07:57 -0500 Lines: 16 Message-ID: References: <56ab10f4$0$1606$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de clYblGHWNxGwj+aD8ZfMkggLT0nI/K7UVRzpETSm7yiA== 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; 'warnings': 0.03; 'subject:Python': 0.05; 'received:internal': 0.09; 'python': 0.10; 'jan': 0.11; 'syntax': 0.13; 'confusion': 0.16; 'dire': 0.16; 'message-id:@webmail.messagingengine.com': 0.16; 'received:10.202': 0.16; 'received:10.202.2': 0.16; 'received:66.111': 0.16; 'received:66.111.4': 0.16; 'received:66.111.4.27': 0.16; 'received:io': 0.16; 'received:messagingengine.com': 0.16; 'received:out3-smtp.messagingengine.com': 0.16; 'received:psf.io': 0.16; 'wrote:': 0.16; 'element': 0.18; 'string,': 0.18; 'code,': 0.23; 'header:In-Reply-To:1': 0.24; 'fri,': 0.27; 'hash': 0.29; 'perl': 0.29; 'array': 0.29; 'source': 0.33; "d'aprano": 0.33; 'reference,': 0.33; 'steven': 0.33; 'file': 0.34; 'running': 0.34; 'attempt': 0.35; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'received:66': 0.38; 'wrong': 0.38; 'subject:from': 0.39; 'enough': 0.39; 'to:addr:python.org': 0.40; 'header:Message-Id:1': 0.61; 'between': 0.65; 'differences': 0.66; 'absolutely': 0.88; 'different.': 0.91; 'subject:want': 0.93 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=MvGMTc2q8HZ9IweyRNC/woWf/ro=; b=bGA5f5 Cyod7124K6irPW8H/lOyZliNxOLyquJINPfiHQ5zwC+BqG/4Cj33UIrgLBmrEVZ3 bJjLlnZw6iH53+WEB4jVWldha+pfjwSiOfQwZZ5kMg0ihTNFwemCE6V79DDeEOaN IqlYn8Wpj6NoJHQXRaWoUqMSyeu0C4ns2RzeY= 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=MvGMTc2q8HZ9Iwe yRNC/woWf/ro=; b=WKSiWwl9eChwwOVkXWdtvjKqlIYRUpx4b5Eye8xeGj2thje dAH3MdwPg7aFHKSwb9GYeaSn5PgzIxR2kP9+sAmHp+ycUiuJg7ug7w7IG9eP+nOc gST1Tc2pxwRu+/y28uhU7U6ZLl/RQ+p/gJRHiz0lWF2l6OSH4qXXZcANxrKY= X-Sasl-Enc: kXmAPMDklJ3ignvAaFGgzxom83ta7NYJNOcZGlhWlVEr 1454080077 X-Mailer: MessagingEngine.com Webmail Interface - ajax-6cda141f In-Reply-To: X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:102235 On Fri, Jan 29, 2016, at 04:12, Ulli Horlacher wrote: > Steven D'Aprano wrote: > > > Every time I make a half-hearted attempt to learn enough Perl syntax to get > > started, I keep running into the differences between $foo, %foo and @foo > > and dire warnings about what happens if you use the wrong sigil ... > $foo is a scalar (number, string, reference, file handle) > @foo is an array > %foo is a hash (dictionary in Python slang) > > and yes, you can use them all together in same code, they are different. The main source of confusion is that $foo[5] is an element of @foo. $foo{'x'} is an element of %foo. Both of these have absolutely nothing to do with $foo.