Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #85946

Re: What behavior would you expect?

Path csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed2a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <rosuav@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.014
X-Spam-Evidence '*H*': 0.97; '*S*': 0.00; 'parameters': 0.04; 'skip:[ 20': 0.04; 'argument': 0.05; 'subject:would': 0.07; 'shame': 0.09; 'cc:addr:python-list': 0.11; "wouldn't": 0.14; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; "module's": 0.16; 'optional': 0.16; 'sort()': 0.16; 'sorted()': 0.16; 'wrote:': 0.18; 'library': 0.18; 'bit': 0.19; 'feb': 0.22; 'cc:addr:python.org': 0.22; 'directory.': 0.24; 'cc:2**0': 0.24; 'sort': 0.25; 'possibly': 0.26; 'header:In-Reply-To:1': 0.27; 'idea': 0.28; 'message-id:@mail.gmail.com': 0.30; '(which': 0.31; 'code': 0.31; 'directory,': 0.31; 'url:python': 0.33; 'call.': 0.33; 'fri,': 0.33; 'could': 0.34; 'but': 0.35; 'received:google.com': 0.35; 'add': 0.35; 'method': 0.36; 'subject:?': 0.36; 'url:org': 0.36; 'skip:o 20': 0.38; 'jason': 0.38; 'url:library': 0.38; 'list,': 0.38; 'pm,': 0.38; 'does': 0.39; 'bad': 0.39; 'how': 0.40; 'simply': 0.61; "you're": 0.61; "you'll": 0.62; 'making': 0.63; 'name': 0.63; 'more': 0.64; '20,': 0.68; 'reverse': 0.68; '2015': 0.84; 'good!': 0.84; 'subject:you': 0.87; 'to:none': 0.92
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 :content-type; bh=l+BqPconFQWaQ7SXjKIWMMEoJoKWp50XtdEpdtuityg=; b=1CXYAah3dhK+bzMPvdMx5a7Jt1lcPYpGawiEUFYRpzN6BRua2Gy8UjC1+lqKQZiLUP OG5IwCT0xffzqjq3PVNiGBLPQacVHZCBE57pf1WTsknfrBfcrvRqE1Lq0eFDqCv1il4L aS9cz4F/E3emc5/4YFfP5fu6pGweb+vlQn08TimAvt880b0Owmn1f4kfI9LWkB7FM7FV q7u+3lq/bkSLSGdDwRtA0L3LJmGbH+i+Dz8EEp/XoV0usuCmO7MPa2Sz/AwTiBpt49r+ bihspQq2ZRtHKwiJGGBQfmlVC/nwhz4A1BGj8WTH/567fglh8fHFcWFFs+V/4/n8Kydb X1Nw==
MIME-Version 1.0
X-Received by 10.42.13.193 with SMTP id e1mr9961472ica.59.1424409632677; Thu, 19 Feb 2015 21:20:32 -0800 (PST)
In-Reply-To <CANy1k1gMgGnqNcgTwjcqfYH-QctZthv89uXcU8SV9Uk6Wji=4A@mail.gmail.com>
References <CANy1k1g+wU6VUifZpV5+DWendT2LqS-PhRA-KC5hmq2xQ_uy+A@mail.gmail.com> <CANy1k1gMgGnqNcgTwjcqfYH-QctZthv89uXcU8SV9Uk6Wji=4A@mail.gmail.com>
Date Fri, 20 Feb 2015 16:20:32 +1100
Subject Re: What behavior would you expect?
From Chris Angelico <rosuav@gmail.com>
Cc python-list <python-list@python.org>
Content-Type text/plain; charset=UTF-8
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 <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>
Newsgroups comp.lang.python
Message-ID <mailman.18909.1424409635.18130.python-list@python.org> (permalink)
Lines 25
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1424409635 news.xs4all.nl 2978 [2001:888:2000:d::a6]:44409
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:85946

Show key headers only | View raw


On Fri, Feb 20, 2015 at 4:13 PM, Jason Friedman <jsf80238@gmail.com> wrote:
>     os.chdir(a_path)
>     return_list = [os.path.join(a_path, x) for x in glob.glob(a_glob) if
> os.path.isfile(x)]
>     os.chdir(previous_dir)
>     return reversed(sorted(return_list, key=os.path.getmtime))
>
> It's a shame that glob.glob does not take an arbitrary directory as an
> optional argument if one does not want to scan the current directory.

If you look at the glob module's docs, you'll see how it's implemented:

https://docs.python.org/2/library/glob.html

You may want to use fnmatch, or possibly just prepend a path name onto
your glob. That way, you wouldn't need to change directory, which is
almost always a bad idea for a library function.

Instead of the reversed() call, you can simply add reverse=True to the
sorted() call. And since you're not making use of the original list,
you could use its sort() method (which has key and reverse parameters
too) to sort a bit more efficiently. But I think your code is pretty
good!

ChrisA

Back to comp.lang.python | Previous | Next | Find similar | Unroll thread


Thread

Re: What behavior would you expect? Chris Angelico <rosuav@gmail.com> - 2015-02-20 16:20 +1100

csiph-web