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


Groups > comp.lang.python > #109587

Re: Operator precedence problem

Path csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From Random832 <random832@fastmail.com>
Newsgroups comp.lang.python
Subject Re: Operator precedence problem
Date Mon, 06 Jun 2016 14:44:12 -0400
Lines 10
Message-ID <mailman.45.1465238654.2306.python-list@python.org> (permalink)
References <816c651a-d0ae-4e23-a5b2-72a8f7398468@googlegroups.com> <nj0kol$ps$1@ger.gmane.org> <mailman.5.1465112166.2306.python-list@python.org> <3ff71354-461a-4635-8d1a-c879243e39a8@googlegroups.com> <CAMQ2MsFfxF0wSL_y9tSFCoJ1BJ+GVqi2qJLTBzs7+BbGRjW3Bw@mail.gmail.com> <mailman.9.1465142763.2306.python-list@python.org> <2a577a90-3a39-4d8f-90fa-4a00fd4f06a3@googlegroups.com> <1465221421.1069788.629246361.60094337@webmail.messagingengine.com> <mailman.37.1465221424.2306.python-list@python.org> <5755adcc$0$1605$c3e8da3$5496439d@news.astraweb.com> <1465238652.1130239.629575665.537F855D@webmail.messagingengine.com>
Mime-Version 1.0
Content-Type text/plain
Content-Transfer-Encoding 7bit
X-Trace news.uni-berlin.de FStluJ7sVOrLDmuEN8DslgP/c0AGU/WwxO6sHUuF4hcw==
Return-Path <random832@fastmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.021
X-Spam-Evidence '*H*': 0.96; '*S*': 0.00; 'received:internal': 0.09; '"and"': 0.16; '"or"': 0.16; 'message- id:@webmail.messagingengine.com': 0.16; 'precedence.': 0.16; 'received:10.202': 0.16; 'received:10.202.2': 0.16; 'received:66.111': 0.16; 'received:66.111.4': 0.16; 'received:io': 0.16; 'received:messagingengine.com': 0.16; 'received:psf.io': 0.16; 'wrote:': 0.16; 'subject:problem': 0.22; 'header:In-Reply- To:1': 0.24; 'mon,': 0.24; 'right.': 0.27; 'though,': 0.32; "d'aprano": 0.33; 'doubt': 0.33; 'steven': 0.33; 'to:addr:python- list': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'thought': 0.37; 'received:66': 0.38; 'to:addr:python.org': 0.40; 'forget': 0.60; 'header:Message-Id:1': 0.61; 'between': 0.65; '(why': 0.84; 'mystery': 0.95
DKIM-Signature v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.com; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=ZfSIJgyY59YOMQyS9Ega5yCbzvc=; b=dGvdP7 KScTh9v+3qmzXYaZJa9+AnAHHcjnwBv7xj3yJi0e+wr+8wPJkm8+v7XFdJf0JnAk 2j7bYwMQUVxeEdgBvvqnLTQ8HEw4JoHcBnGsv+AtdYzP8lDnyDW8V5grDd7BAGUx FDmvoIYj3x2Wc4be1Y8VmuOrc4umsIoy2ydvw=
DKIM-Signature v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=ZfSIJgyY59YOMQy S9Ega5yCbzvc=; b=JAD07aCoV6xFFRYiQoLVSO+xkafPPLVjoqMW/uZ3sfOl+aY pN4sRcIoS/3EP+8BMo3VfwcmqKrRuSpL37jz5xKftKL/96sRsCJiI8QZwRoRQOyL 0lCDMJ+b0FOE+2szeKq96wvjnb9oUE81xTLoSvPBw8QMxjE1NHawGDvOV+Co=
X-Sasl-Enc JVNCHD9SGKpnkiqjX4lOGuVNjgzLZzWea64hfcaCqwGH 1465238652
X-Mailer MessagingEngine.com Webmail Interface - ajax-7f2506ab
In-Reply-To <5755adcc$0$1605$c3e8da3$5496439d@news.astraweb.com>
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.22
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list/>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
X-Mailman-Original-Message-ID <1465238652.1130239.629575665.537F855D@webmail.messagingengine.com>
X-Mailman-Original-References <816c651a-d0ae-4e23-a5b2-72a8f7398468@googlegroups.com> <nj0kol$ps$1@ger.gmane.org> <mailman.5.1465112166.2306.python-list@python.org> <3ff71354-461a-4635-8d1a-c879243e39a8@googlegroups.com> <CAMQ2MsFfxF0wSL_y9tSFCoJ1BJ+GVqi2qJLTBzs7+BbGRjW3Bw@mail.gmail.com> <mailman.9.1465142763.2306.python-list@python.org> <2a577a90-3a39-4d8f-90fa-4a00fd4f06a3@googlegroups.com> <1465221421.1069788.629246361.60094337@webmail.messagingengine.com> <mailman.37.1465221424.2306.python-list@python.org> <5755adcc$0$1605$c3e8da3$5496439d@news.astraweb.com>
Xref csiph.com comp.lang.python:109587

Show key headers only | View raw


On Mon, Jun 6, 2016, at 13:07, Steven D'Aprano wrote:
> Blimey, you're right. I always thought `and` and `or` had the same
> precedence. And now that I know better, I have no doubt that I will
> forget
> it again.

A good way to remember it is that "and" is analogous to multiplication,
and "or" is analogous to addition. Which is, I assume, _why_ they have
the same precedence. (why ^ is between | and &, though, is a mystery to
me.)

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


Thread

Operator precedence problem ICT Ezy <ictezy@gmail.com> - 2016-06-04 23:53 -0700
  Re: Operator precedence problem Peter Otten <__peter__@web.de> - 2016-06-05 09:35 +0200
    Re: Operator precedence problem ICT Ezy <ictezy@gmail.com> - 2016-06-05 08:05 -0700
      Re: Operator precedence problem Uri Even-Chen <uri@speedy.net> - 2016-06-05 19:05 +0300
        Re: Operator precedence problem ICT Ezy <ictezy@gmail.com> - 2016-06-05 20:24 -0700
        Re: Operator precedence problem Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-05 22:46 -0700
          Re: Operator precedence problem Random832 <random832@fastmail.com> - 2016-06-06 09:57 -0400
            Re: Operator precedence problem Marko Rauhamaa <marko@pacujo.net> - 2016-06-06 17:22 +0300
              Re: Operator precedence problem Random832 <random832@fastmail.com> - 2016-06-06 10:35 -0400
                Re: Operator precedence problem Marko Rauhamaa <marko@pacujo.net> - 2016-06-06 17:55 +0300
              Re: Operator precedence problem Jon Ribbens <jon+usenet@unequivocal.co.uk> - 2016-06-06 15:03 +0000
                Re: Operator precedence problem Marko Rauhamaa <marko@pacujo.net> - 2016-06-06 18:22 +0300
                Re: Operator precedence problem Jon Ribbens <jon+usenet@unequivocal.co.uk> - 2016-06-06 15:27 +0000
                Re: Operator precedence problem Chris Angelico <rosuav@gmail.com> - 2016-06-07 01:57 +1000
                Re: Operator precedence problem Jon Ribbens <jon+usenet@unequivocal.co.uk> - 2016-06-06 16:05 +0000
                Re: Operator precedence problem Chris Angelico <rosuav@gmail.com> - 2016-06-07 02:21 +1000
                Re: Operator precedence problem Jon Ribbens <jon+usenet@unequivocal.co.uk> - 2016-06-06 17:02 +0000
                Re: Operator precedence problem Grant Edwards <grant.b.edwards@gmail.com> - 2016-06-06 16:51 +0000
              Re: Operator precedence problem Peter Otten <__peter__@web.de> - 2016-06-06 18:38 +0200
            Re: Operator precedence problem Steven D'Aprano <steve@pearwood.info> - 2016-06-07 03:07 +1000
              Re: Operator precedence problem Random832 <random832@fastmail.com> - 2016-06-06 14:44 -0400
                Re: Operator precedence problem Marko Rauhamaa <marko@pacujo.net> - 2016-06-06 21:49 +0300
              Re: Operator precedence problem MRAB <python@mrabarnett.plus.com> - 2016-06-06 20:17 +0100
                Re: Operator precedence problem Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-07 11:27 +1200
            Re: Operator precedence problem Rustom Mody <rustompmody@gmail.com> - 2016-06-06 10:14 -0700
              Re: Operator precedence problem Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-06 21:09 +0100
      Re: Operator precedence problem Michael Torrie <torriem@gmail.com> - 2016-06-05 17:47 -0600
        Re: Operator precedence problem ICT Ezy <ictezy@gmail.com> - 2016-06-05 20:23 -0700
  Re: Operator precedence problem Chris Angelico <rosuav@gmail.com> - 2016-06-06 02:24 +1000
    Re: Operator precedence problem Peter Pearson <pkpearson@nowhere.invalid> - 2016-06-06 16:58 +0000
      Re: Operator precedence problem Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-07 11:21 +1200
  Re: Operator precedence problem Random832 <random832@fastmail.com> - 2016-06-05 13:19 -0400
    Re: Operator precedence problem ICT Ezy <ictezy@gmail.com> - 2016-06-05 20:23 -0700
  Re: Operator precedence problem Gary Herron <gherron@digipen.edu> - 2016-06-05 00:04 -0700

csiph-web