Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.datemas.de!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed4a.news.xs4all.nl!xs4all!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 0.008 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; '(of': 0.07; 'patterns.': 0.07; 'subject:Question': 0.07; "'')": 0.09; 'cc:addr:python- list': 0.11; 'python': 0.11; 'subject:skip:m 10': 0.16; 'wrote:': 0.18; '>>>': 0.22; 'example': 0.22; 'import': 0.22; 'cc:addr:python.org': 0.22; 'mon,': 0.24; 'cc:2**0': 0.24; 'header :In-Reply-To:1': 0.27; 'am,': 0.29; 'message-id:@mail.gmail.com': 0.30; 'linux': 0.33; 'but': 0.35; 'received:google.com': 0.35; 'two': 0.37; 'more': 0.64; 'to:addr:gmail.com': 0.65; 'jul': 0.74; '2014,': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=SDone+6h8mTwK0ePFJ3ygo08V53h9L0xSn6AWs7qq7M=; b=bQmUiT7KwwqKcS1O+ZGKP03Ym0D9MfpHmxs3AOLyXGFkLt6OWVx1xGUWZCQGNsE7ZX InH1cuPBIJFk9y+ubAE/V4LwW8CPa3Acwvlj34vylWUcCnASF/xLnwpZVzA738QJnsWY I4nIF5xFRGqXQlwJ90NcU2rYK8iGaSMJfO0UFGVxv1aJAR+KbKDw5J5aMUxipCvDvHYd 3KhOpjNPRBbJTb0l44eOAPTLMCU5nxFMPfUbP+1Nv2EZBOVevTYUICMhnli1TAIahHnQ AjB2U+h18nALLE0b6RSynGHGfXfV/sdISvyiuVOsrnvnOlh2WmAtLkRCc9yZkdSzbFM/ UdhQ== X-Received: by 10.229.53.133 with SMTP id m5mr35093112qcg.19.1404764919444; Mon, 07 Jul 2014 13:28:39 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <86b50887-96b0-4a21-8b0a-26c5a435c76d@googlegroups.com> References: <3f7ecf04-b881-4e79-aa59-893580090468@googlegroups.com> <86b50887-96b0-4a21-8b0a-26c5a435c76d@googlegroups.com> From: Devin Jeanpierre Date: Mon, 7 Jul 2014 13:27:59 -0700 Subject: Re: Question about metacharacter '*' To: Robert Willy Content-Type: text/plain; charset=UTF-8 Cc: "comp.lang.python" 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: 23 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1404764921 news.xs4all.nl 2861 [2001:888:2000:d::a6]:51662 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:74135 On Mon, Jul 7, 2014 at 11:51 AM, wrote: > Would you give me an example using your pattern: `.*` -- `.`? > I try it, but it cannot pass. (of course, I use it incorrectly) Those are two patterns. Python 3.4.1 (default, Jul 7 2014, 13:22:02) [GCC 4.6.3] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import re >>> re.fullmatch(r'.', 'a') <_sre.SRE_Match object; span=(0, 1), match='a'> >>> re.fullmatch(r'.', 'ab') >>> re.fullmatch(r'.', '') >>> >>> re.fullmatch(r'.*', 'a') <_sre.SRE_Match object; span=(0, 1), match='a'> >>> re.fullmatch(r'.*', 'ab') <_sre.SRE_Match object; span=(0, 2), match='ab'> >>> re.fullmatch(r'.*', '') <_sre.SRE_Match object; span=(0, 0), match=''> -- Devin