Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #7527
| Path | csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.011 |
| X-Spam-Evidence | '*H*': 0.98; '*S*': 0.00; 'interpreter': 0.07; 'python': 0.08; '>>>>': 0.09; 'bool': 0.09; '>>>': 0.12; 'am,': 0.14; 'received:209.85.214.174': 0.14; 'received:mail- iw0-f174.google.com': 0.14; 'result.': 0.14; 'wrote:': 0.14; '10}': 0.16; 'angelico': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'tue,': 0.17; 'otherwise,': 0.19; 'header:In-Reply-To:1': 0.21; 'there.': 0.25; 'message- id:@mail.gmail.com': 0.28; 'received:209.85.214': 0.28; 'class': 0.29; 'to:addr:python-list': 0.33; 'chris': 0.34; 'quite': 0.36; 'received:google.com': 0.37; 'something': 0.37; 'received:209.85': 0.37; 'subject:: ': 0.38; 'comments': 0.39; 'skip:s 20': 0.39; 'received:209': 0.39; 'johnson': 0.39; 'to:addr:python.org': 0.39; 'help': 0.40; 'subject:, ': 0.60; 'your': 0.60; 'note:': 0.63; 'special': 0.66; '1+2': 0.84; 'subject:local': 0.84; 'presumably': 0.91 |
| DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type:content-transfer-encoding; bh=PsR2uUSM9b/wniSDDbtdNPB3fQ1iNq2uBoRQ0fUZw0o=; b=kij/IubN9R8nM2HEKLjJbLe2jqtu962hFYSAYcpI+Jb64++OwFosbMEyVs3oUY2enX ah0Sk+zpr3p0BcuFhX+iIB3GTaIbvSx9IbmqFYEomBj6m82WG8s22B1KlcwABML4Pklk aWamGMpbHVoXIJ7QLRbgc6UGaHV77KyLH01rM= |
| DomainKey-Signature | a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=nZxA8qLd9Vl7FzrvnsFpWT7WIGqCquJEDoaCy246ayqIoWOIMSQscsGmmxj2v0kQ7t nJHwOXIxqb2QUV+mXP4ZueFY0nw9FXQ6i18ejs0WDnzxydOZn2f5+8/v7VoKHVz4WSUF Ea/OgGXWidQNtC9W0YRRRTpvG+x9RIxiHt9W8= |
| MIME-Version | 1.0 |
| In-Reply-To | <20110613153702.GN2556@johnsons-web.com> |
| References | <20110613153702.GN2556@johnsons-web.com> |
| Date | Tue, 14 Jun 2011 01:55:04 +1000 |
| Subject | Re: dummy, underscore and unused local variables |
| From | Chris Angelico <rosuav@gmail.com> |
| To | python-list@python.org |
| Content-Type | text/plain; charset=ISO-8859-1 |
| Content-Transfer-Encoding | quoted-printable |
| X-BeenThere | python-list@python.org |
| X-Mailman-Version | 2.1.12 |
| 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.179.1307980527.11593.python-list@python.org> (permalink) |
| Lines | 30 |
| NNTP-Posting-Host | 82.94.164.166 |
| X-Trace | 1307980528 news.xs4all.nl 49176 [::ffff:82.94.164.166]:48415 |
| X-Complaints-To | abuse@xs4all.nl |
| Xref | x330-a1.tempe.blueboxinc.net comp.lang.python:7527 |
Show key headers only | View raw
On Tue, Jun 14, 2011 at 1:37 AM, Tim Johnson <tim@johnsons-web.com> wrote:
> On a related note: from the python interpreter if I do
>>>> help(_)
> I get
> Help on bool object:
>
> class bool(int)
> | bool(x) -> bool
> ......
> I'd welcome comments on this as well.
_ is special to IDLE.
>>> 1+2
3
>>> _
3
It's the last result. So presumably when you did it, your last result
was something boolean.
>>> sorted([random.randint(1,10) for i in range(10)])
[1, 1, 2, 3, 4, 4, 5, 7, 8, 10]
>>> set(_)
{1, 2, 3, 4, 5, 7, 8, 10}
Can be quite handy, if you remember it's there. Otherwise, not so much. :)
Chris Angelico
Back to comp.lang.python | Previous | Next — Next in thread | Find similar | Unroll thread
Re: dummy, underscore and unused local variables Chris Angelico <rosuav@gmail.com> - 2011-06-14 01:55 +1000
Re: dummy, underscore and unused local variables Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-13 16:15 +0000
Re: dummy, underscore and unused local variables Chris Angelico <rosuav@gmail.com> - 2011-06-14 02:41 +1000
csiph-web