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

Groups > comp.lang.python > #57124

Re: Error Testing

Path csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed4.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 0.051
X-Spam-Evidence '*H*': 0.90; '*S*': 0.00; 'subject:Error': 0.07; 'operator,': 0.09; 'python': 0.11; 'algebra,': 0.16; 'assignment.': 0.16; 'equality.': 0.16; 'expressions;': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'identifiers': 0.16; 'notations': 0.16; 'syntactic': 0.16; 'so.': 0.16; 'language': 0.16; 'wrote:': 0.18; 'code.': 0.18; 'programming': 0.22; 'issue.': 0.22; 'mathematical': 0.24; 'fairly': 0.24; 'math': 0.24; '(or': 0.24; 'question': 0.24; 'header:In-Reply-To:1': 0.27; 'tried': 0.27; 'am,': 0.29; 'words': 0.29; 'statement': 0.30; 'message-id:@mail.gmail.com': 0.30; 'arts': 0.31; 'comparison': 0.31; 'pascal': 0.31; 'stands': 0.31; 'problem': 0.35; 'equal': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'really': 0.36; 'programming,': 0.36; 'similar': 0.36; 'two': 0.37; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'even': 0.60; 'read': 0.60; 'expression': 0.60; 'most': 0.60; 'new': 0.61; 'course': 0.61; 'teaching': 0.64; 'more': 0.64; 'close': 0.67; '20,': 0.68; 'maths': 0.84; 'subject:Testing': 0.84; 'rusi': 0.91; 'whereas': 0.91; 'differences': 0.93; '2013': 0.98
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:to :content-type; bh=y+t81XGUfzYpHaQ1ZwxWb6W+J2Pf70GIBOqyYUFxV+E=; b=cBM0GBN+UOeJPdHCmmCjdq5qTqibKEMbH3/t5yGtFlflHk3cNxvkLDOM9ymV+dl4MD pDLCcTb5L05zgcwlay7GWVm30e58Pl6EjIVebDdKZ1N4EFqj5Q50u/VjeDMslhgIMykO RiU6d1OLc+caBOu+4NMwlLB1geSZlWYfnE498YzdJHIm7dBrlptllU55pNXfROZz6MwD M0NfnUB6ALR/Sjw7Jv32xlK/a6B6+nu3euurefxQ6qsL6EVPIv+A85bQ90DlOsc6JPMa 89kVdrYilufFnvkybs6xxgM3rDF190xAtRT/HbQPYxmy8nRecKLEG94TYRlCcLtpblCL qE/w==
MIME-Version 1.0
X-Received by 10.66.161.229 with SMTP id xv5mr10412592pab.87.1382221683896; Sat, 19 Oct 2013 15:28:03 -0700 (PDT)
In-Reply-To <9e734f2b-9bcd-47d8-adb9-de6501fa6e7d@googlegroups.com>
References <33549834-2f27-47f3-abea-eb3486909dec@googlegroups.com> <mailman.1253.1382186251.18130.python-list@python.org> <ea2d79c5-e116-458f-a77c-700e748323e2@googlegroups.com> <9e734f2b-9bcd-47d8-adb9-de6501fa6e7d@googlegroups.com>
Date Sun, 20 Oct 2013 09:28:03 +1100
Subject Re: Error Testing
From Chris Angelico <rosuav@gmail.com>
To python-list@python.org
Content-Type text/plain; charset=ISO-8859-1
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 <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.1272.1382221693.18130.python-list@python.org> (permalink)
Lines 20
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1382221693 news.xs4all.nl 15887 [2001:888:2000:d::a6]:59587
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:57124

Show key headers only | View raw

On Sun, Oct 20, 2013 at 3:22 AM, rusi <rustompmody@gmail.com> wrote:
> The problem is that python is an imperative language and uses the '=' sign for assignment.  In math of course '=' stands for equality.

Pascal tried to create a new operator, := to be read "becomes", to
deal with the whole equality-vs-assignment issue. Did it really help
anything? I don't think so. Just syntactic salt. Even the comparison
isn't really mathematical - in maths, "x = y" is a statement of truth,
whereas in programming, it's a question ("is x equal to y").

Teaching maths and programming at once is like teaching any other two
arts at once - there'll be differences to grok as well as similarities
to jump on. I would say that the expression evaluator in (almost) any
modern language is a fairly close parallel to standard mathematical
expressions; yes, abutting tokens is multiplication in algebra, but on
the flip side, we don't use (or need) subscript to make multi-letter
identifiers in code. Programming uses more words and less blackboard
notations (compare abs(x) to |x| for example), but it's expressing
things in fairly similar ways most of the time.

ChrisA

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

Thread

Error Testing Scott Novinger <scnovinger@gmail.com> - 2013-10-19 05:23 -0700
  Re: Error Testing Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-19 13:37 +0100
    Re: Error Testing Scott Novinger <scnovinger@gmail.com> - 2013-10-19 06:34 -0700
      Re: Error Testing Chris Angelico <rosuav@gmail.com> - 2013-10-20 00:42 +1100
      Re: Error Testing rusi <rustompmody@gmail.com> - 2013-10-19 09:22 -0700
        Re: Error Testing Chris Angelico <rosuav@gmail.com> - 2013-10-20 09:28 +1100
        Re: Error Testing Ned Deily <nad@acm.org> - 2013-10-19 15:46 -0700
        Re: Error Testing Chris Angelico <rosuav@gmail.com> - 2013-10-20 10:02 +1100
        Re: Error Testing Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-10-20 12:18 -0400
  Re: Error Testing Ned Batchelder <ned@nedbatchelder.com> - 2013-10-19 08:44 -0400
    Re: Error Testing Roy Smith <roy@panix.com> - 2013-10-19 08:57 -0400
      Re: Error Testing Chris Angelico <rosuav@gmail.com> - 2013-10-20 00:04 +1100
      Re: Error Testing Ned Batchelder <ned@nedbatchelder.com> - 2013-10-19 09:07 -0400
        Re: Error Testing Roy Smith <roy@panix.com> - 2013-10-19 09:09 -0400
      Re: Error Testing Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-19 14:19 +0100
  Re: Error Testing Chris Angelico <rosuav@gmail.com> - 2013-10-20 00:01 +1100
  Re: Error Testing David Robinow <drobinow@gmail.com> - 2013-10-19 14:08 -0400
  Re: Error Testing Tim Chase <tim@thechases.com> - 2013-10-19 13:31 -0500
  Re: Error Testing Terry Reedy <tjreedy@udel.edu> - 2013-10-19 15:50 -0400
  What's wrong with Windows Command Prompt (was Re: Error Testing) Terry Reedy <tjreedy@udel.edu> - 2013-10-19 16:35 -0400
  Re: What's wrong with Windows Command Prompt (was Re: Error Testing) Chris Angelico <rosuav@gmail.com> - 2013-10-20 09:15 +1100
  Re: Error Testing Chris Angelico <rosuav@gmail.com> - 2013-10-20 09:20 +1100
  Re: What's wrong with Windows Command Prompt (was Re: Error Testing) David Robinow <drobinow@gmail.com> - 2013-10-21 15:55 -0400
  Re: What's wrong with Windows Command Prompt (was Re: Error Testing) Tim Chase <python.list@tim.thechases.com> - 2013-10-21 15:29 -0500

csiph-web