Path: csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.007
X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'converts': 0.07; 'so?': 0.07; 'differently.': 0.09; 'filename,': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'def': 0.10; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'subject:search': 0.16; 'alternate': 0.17; 'http': 0.22; 'this:': 0.23; 'header:User- Agent:1': 0.26; 'i.e.': 0.27; 'replace': 0.27; 'header:X -Complaints-To:1': 0.28; 'subject:/': 0.28; 'once.': 0.29; 'becomes': 0.30; 'curious': 0.33; 'to:addr:python-list': 0.33; 'done': 0.34; 'protocol': 0.35; 'there': 0.35; 'received:org': 0.36; 'charset:us-ascii': 0.36; 'to:addr:python.org': 0.39; 'easily': 0.39; 'header:Received:5': 0.40; 'remove': 0.61; 'skip:a 40': 0.61; 'more': 0.63; 'url:a': 0.72; 'received:sd.cox.net': 0.84; 'subject:via': 0.84; 'step.': 0.91
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: rh <richard_hubbe11@lavabit.com>
Subject: Curious to see alternate approach on a search/replace via regex
Date: Wed, 6 Feb 2013 13:41:05 -0800
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-Gmane-NNTP-Posting-Host: ip68-227-87-145.sb.sd.cox.net
User-Agent: dsodnetnin
X-Mailer: EZnn0.37p
X-Newsreader: EZnn0.37p
X-Gmane-NNTP-Posting-Host: EZnn0.37p
Original-Received: from slem by 1.1 with local
X-No-Archive: yes
Archive: no
X-Archive: expiry=11
X-Archive: encrypt
X-Operating-System: Barebones_6.1
X-Gmane-NNTP-Posting-Host: 192.168.1.1
X-NNTP-Posting-Host: 192.168.1.1
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://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: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.1425.1360186878.2939.python-list@python.org>
Lines: 24
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1360186878 news.xs4all.nl 6870 [2001:888:2000:d::a6]:48502
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:38302

I am curious to know if others would have done this differently. And if so
how so?

This converts a url to a more easily managed filename, stripping the
http protocol off. 

This:
 
http://alongnameofasite1234567.com/q?sports=run&a=1&b=1

becomes this:

alongnameofasite1234567_com_q_sports_run_a_1_b_1


def u2f(u):
    nx = re.compile(r'https?://(.+)$')
    u = nx.search(u).group(1)
    ux = re.compile(r'([-:./?&=]+)')
    return ux.sub('_', u)

One alternate is to not do the compile step. There must also be a way to
do it all at once. i.e. remove the protocol and replace the chars.