Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #106681
| Path | csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail |
|---|---|
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Subject | Re: how to convert code that uses cmp to python3 |
| Date | Sat, 9 Apr 2016 00:08:38 +1000 |
| Lines | 27 |
| Message-ID | <mailman.84.1460124521.2253.python-list@python.org> (permalink) |
| References | <57064D0D.1030701@rece.vub.ac.be> <CAPTjJmrGiQS9uhFU-+TQ4nUWQ2p4gmJoQitMotS0Ob--qm1iWg@mail.gmail.com> <5706C961.2000009@rece.vub.ac.be> <CAPTjJmrbL870mV1kU8nHar=bPyKZRmhKP-8iUs_tpYVo5vhhOA@mail.gmail.com> <57075F43.7060004@rece.vub.ac.be> <85fuuw5ypl.fsf@benfinney.id.au> <5707B2CE.1010407@rece.vub.ac.be> <CAPTjJmrMv5O5vwrbfHJJCdiHi87naPOanhPmk4Ba_SLRgu1m4Q@mail.gmail.com> |
| Mime-Version | 1.0 |
| Content-Type | text/plain; charset=UTF-8 |
| X-Trace | news.uni-berlin.de g7s5XxZVpQD4L+KHk8Nt+QOi5HEorpkYiEXE0Vb6gVDA== |
| Return-Path | <rosuav@gmail.com> |
| 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; 'received:209.85.223': 0.03; 'subject:code': 0.07; 'cc:addr:python-list': 0.09; 'python': 0.10; '2016': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'seconds.': 0.16; 'subject:python3': 0.16; 'wrote:': 0.16; 'comparing': 0.18; 'cc:2**0': 0.20; 'cc:addr:python.org': 0.20; 'delta': 0.22; 'this:': 0.23; 'header:In-Reply-To:1': 0.24; 'compare': 0.27; 'equivalent': 0.27; 'fri,': 0.27; 'message- id:@mail.gmail.com': 0.27; 'subject:that': 0.29; 'version,': 0.30; 'received:google.com': 0.35; 'follows:': 0.35; 'received:209.85': 0.36; 'pm,': 0.36; 'subject:: ': 0.37; 'doing': 0.38; 'received:209': 0.38; 'why': 0.39; 'takes': 0.39; 'more': 0.63; 'chrisa': 0.84; 'directions,': 0.84; 'pardon': 0.84; 'to:none': 0.91 |
| 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; bh=M44sI7tciAwkxTUTAFTTpiXadO81UCndSY7Plyr4GBQ=; b=XM9hEVriDXFfiuBrAw3JuOKS1v3zEzBD26NC3ZZJ1umcLczxqL1mvZB+OL586ob2z/ Omk7HSPdfgIZS7JlGlY9MSNkiquHVrXclu71rtj5viEO+zakIk9BfpOsXEL11VE+bxL2 QGdij7LZ0T93KKjg4CTpY5v7UCN92XYmm8oMcpz/aL+n8KmiUhfD2HCBZO5YkefxwwUt 7GEGBJmXoZivKqahdNNKwPhj93xGt5lEqH8pime0kUlxRaFyIH6NVi0S80biWHVOS/QX 0WaVJ7X5qk6Y9zixc05Sh9UHTyoUseTrP+OjXF96ufuv12JmYtinQOQ/AQMaHN5Sb3G+ /nWg== |
| X-Google-DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:cc; bh=M44sI7tciAwkxTUTAFTTpiXadO81UCndSY7Plyr4GBQ=; b=GQSx0THY7z6SPNM1d2Mdm72kPVG/VHvv71vAdQbEg8M5cjx5kzluBqThK57AvhDXLB M+Jfc6wFvQX4T5v5ssSw3XTBcEM7OZQ/DLB+ETONu3ON2CErMFw/ePgQypLOa3CvQ4dZ 9p9AtYEOCWmXrjK/yqMO/39TEZY5CyvyXTAQkSe6mqxUgz6KBflTUfvYtKrk+RA+o97w VN+q27ATe4KsCAIMfrpRgxFUCnyjKRzbfconbbOM2iaj1oS22gBOgMvkWvbZZlsEcvAf 1rZ1K0gPoVNzGsJrdxSEqR2at/tMn3H73HdAMf2bUVSUj9YLNxPU8DfAWlBW0AOp/RK5 m4Pw== |
| X-Gm-Message-State | AD7BkJJkpuhbHstRwj0B9sK31114G0r/h9Oo+8zTiuBbpniZ3y0KhsmsilD9T4jU1oJsQxZBF/Y6vW/b4eo91w== |
| X-Received | by 10.107.18.147 with SMTP id 19mr8817441ios.157.1460124518184; Fri, 08 Apr 2016 07:08:38 -0700 (PDT) |
| In-Reply-To | <5707B2CE.1010407@rece.vub.ac.be> |
| X-BeenThere | python-list@python.org |
| X-Mailman-Version | 2.1.21 |
| 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> |
| X-Mailman-Original-Message-ID | <CAPTjJmrMv5O5vwrbfHJJCdiHi87naPOanhPmk4Ba_SLRgu1m4Q@mail.gmail.com> |
| X-Mailman-Original-References | <57064D0D.1030701@rece.vub.ac.be> <CAPTjJmrGiQS9uhFU-+TQ4nUWQ2p4gmJoQitMotS0Ob--qm1iWg@mail.gmail.com> <5706C961.2000009@rece.vub.ac.be> <CAPTjJmrbL870mV1kU8nHar=bPyKZRmhKP-8iUs_tpYVo5vhhOA@mail.gmail.com> <57075F43.7060004@rece.vub.ac.be> <85fuuw5ypl.fsf@benfinney.id.au> <5707B2CE.1010407@rece.vub.ac.be> |
| Xref | csiph.com comp.lang.python:106681 |
Show key headers only | View raw
On Fri, Apr 8, 2016 at 11:31 PM, Antoon Pardon <antoon.pardon@rece.vub.ac.be> wrote: > Doing it as follows: > seq1 < seq2 > seq2 < seq1 > > takes about 110 seconds. > > > Doing it like this: > delta = cmp(seq1, seq2) > delta < 0 > delta > 0 > > takes about 50 seconds. Why are you comparing in both directions, though? cmp() is more equivalent to this: seq1 == seq2 seq1 < seq2 You only need ONE comparison, and the other is presumed to be its opposite. When, in the Python 3 version, would you need to compare twice? ChrisA
Back to comp.lang.python | Previous | Next | Find similar | Unroll thread
Re: how to convert code that uses cmp to python3 Chris Angelico <rosuav@gmail.com> - 2016-04-09 00:08 +1000
csiph-web