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Re: Experiences/guidance on teaching Python as a first programming language

References (9 earlier) <52b0fb4f$0$29973$c3e8da3$5496439d@news.astraweb.com> <mailman.4330.1387338989.18130.python-list@python.org> <52b15a69$0$29973$c3e8da3$5496439d@news.astraweb.com> <mailman.4389.1387406045.18130.python-list@python.org> <52b3277c$0$6512$c3e8da3$5496439d@news.astraweb.com>
Date 2013-12-20 04:18 +1100
Subject Re: Experiences/guidance on teaching Python as a first programming language
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.4418.1387473510.18130.python-list@python.org> (permalink)

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On Fri, Dec 20, 2013 at 4:06 AM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> Should some implementation decide to compile that away as dead
> code, it would be perfectly allowed to. (Well, assuming that it
> determined first that locals() actually was the built-in and not some
> substitute, either by static analysis or runtime testing.)

Hmm. I'm not sure how safe it is to optimize that sort of thing away
in Python. Is there any way to be truly sure that locals is still the
built-in, and if there isn't, is there any advantage to optimizing it
out with some sort of check to see if it should be de-optimized now?
But yes, in theory you're right. Mutating locals() could be optimized
out.

ChrisA

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Experiences/guidance on teaching Python as a first programming language Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-12-09 12:23 +0000
  Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-09 05:54 -0800
  Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-09 08:57 -0800
    Re: Experiences/guidance on teaching Python as a first programming language William Ray Wing <wrw@mac.com> - 2013-12-09 12:55 -0500
    Re: Experiences/guidance on teaching Python as a first programming language Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-12-10 18:25 +1300
      Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-10 16:55 +1100
        Re: Experiences/guidance on teaching Python as a first programming   language Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-12-11 10:38 +1300
      Re: Experiences/guidance on teaching Python as a first programming language Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-12-10 20:35 -0500
        Re: Experiences/guidance on teaching Python as a first programming language Denis McMahon <denismfmcmahon@gmail.com> - 2013-12-11 02:16 +0000
          Re: Experiences/guidance on teaching Python as a first programming language Larry Martell <larry.martell@gmail.com> - 2013-12-11 07:08 -0500
        Re: Experiences/guidance on teaching Python as a first programming language Grant Edwards <invalid@invalid.invalid> - 2013-12-11 15:05 +0000
        Re: Experiences/guidance on teaching Python as a first programming language Rick Johnson <rantingrickjohnson@gmail.com> - 2013-12-16 16:47 -0800
          Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-16 20:06 -0500
            Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-17 01:25 +0000
            Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-17 12:27 +1100
            Re: Experiences/guidance on teaching Python as a first programming language Gene Heskett <gheskett@wdtv.com> - 2013-12-16 20:32 -0500
            Re: Experiences/guidance on teaching Python as a first programming language "Cousin Stanley" <cousinstanley@gmail.com> - 2013-12-17 07:32 -0700
              Re: Experiences/guidance on teaching Python as a first programming language Gene Heskett <gheskett@wdtv.com> - 2013-12-17 12:27 -0500
      Re: Experiences/guidance on teaching Python as a first programming language Neil Cerutti <neilc@norwich.edu> - 2013-12-11 15:46 +0000
  Re: Experiences/guidance on teaching Python as a first programming language "Rhodri James" <rhodri@wildebst.demon.co.uk> - 2013-12-09 23:32 +0000
    Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-09 18:42 -0500
      Re: Experiences/guidance on teaching Python as a first programming language "Rhodri James" <rhodri@wildebst.demon.co.uk> - 2013-12-10 00:00 +0000
      Re: Experiences/guidance on teaching Python as a first programming language Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-12-09 20:56 -0500
  Re: Experiences/guidance on teaching Python as a first programming language Wolfgang Keller <feliphil@gmx.net> - 2013-12-12 21:36 +0100
    Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-13 08:12 +1100
      Re: Experiences/guidance on teaching Python as a first programming language Wolfgang Keller <feliphil@gmx.net> - 2013-12-16 21:32 +0100
        Re: Experiences/guidance on teaching Python as a first programming language "Rhodri James" <rhodri@wildebst.org.uk> - 2013-12-16 23:01 +0000
        Re: Experiences/guidance on teaching Python as a first programming language Ned Batchelder <ned@nedbatchelder.com> - 2013-12-16 19:28 -0500
          Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-16 16:39 -0800
            Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-17 11:44 +1100
              Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-16 17:58 -0800
            Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-17 02:33 +0000
              Re: Experiences/guidance on teaching Python as a first programming language Rick Johnson <rantingrickjohnson@gmail.com> - 2013-12-16 20:41 -0800
              Re: Experiences/guidance on teaching Python as a first programming language Neil Cerutti <neilc@norwich.edu> - 2013-12-17 14:51 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-17 09:54 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-17 15:07 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-17 15:24 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-17 15:35 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Larry Martell <larry.martell@gmail.com> - 2013-12-17 11:21 -0500
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-17 08:56 -0800
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-17 10:03 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 05:20 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Joel Goldstick <joel.goldstick@gmail.com> - 2013-12-17 13:39 -0500
                Re: Experiences/guidance on teaching Python as a first programming language dkcombs@panix.com (David Combs) - 2014-01-29 03:17 +0000
            Re: Experiences/guidance on teaching Python as a first programming language Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-12-17 11:12 +0000
              Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-17 12:18 +0000
              Re: Experiences/guidance on teaching Python as a first programming language Wolfgang Keller <feliphil@gmx.net> - 2013-12-17 16:51 +0100
                Re: Experiences/guidance on teaching Python as a first programming language Grant Edwards <invalid@invalid.invalid> - 2013-12-17 16:59 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Larry Martell <larry.martell@gmail.com> - 2013-12-17 12:18 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-17 17:24 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-17 17:44 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Grant Edwards <invalid@invalid.invalid> - 2013-12-17 19:38 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-17 19:39 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Grant Edwards <invalid@invalid.invalid> - 2013-12-18 18:05 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-18 18:17 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-18 20:49 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-19 02:05 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Wolfgang Keller <feliphil@gmx.net> - 2013-12-19 15:54 +0100
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-18 20:40 -0500
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-18 20:05 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-18 23:16 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-19 15:26 +1100
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-18 20:48 -0800
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-19 09:14 -0800
                Re: Experiences/guidance on teaching Python as a first programming language 88888 Dihedral <dihedral88888@gmail.com> - 2013-12-18 22:03 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-12-19 19:40 +1300
                Re: Experiences/guidance on teaching Python as a first programming language Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-12-17 20:20 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-12-17 17:09 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-17 19:32 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve@pearwood.info> - 2013-12-18 01:33 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 13:11 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve@pearwood.info> - 2013-12-18 08:22 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 19:32 +1100
                Re: Experiences/guidance on teaching Python as a first programming
 language Dave Angel <davea@davea.name> - 2013-12-18 07:53 -0500
                Re: Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-19 01:55 +1100
                Re: Re: Experiences/guidance on teaching Python as a first programming language "Rhodri James" <rhodri@wildebst.org.uk> - 2013-12-19 00:10 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Neil Cerutti <neilc@norwich.edu> - 2013-12-18 15:17 +0000
                Re: Re: Experiences/guidance on teaching Python as a first
 programming language Dave Angel <davea@davea.name> - 2013-12-18 15:52 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-12-19 19:41 +1300
                Re: Experiences/guidance on teaching Python as a first programming
 language Dave Angel <davea@davea.name> - 2013-12-19 07:06 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Grant Edwards <invalid@invalid.invalid> - 2013-12-18 18:00 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-18 18:07 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-18 20:56 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-12-19 18:39 +1300
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-19 00:56 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Paul Smith <paul@mad-scientist.net> - 2013-12-17 22:49 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve@pearwood.info> - 2013-12-18 08:18 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 19:51 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-19 16:20 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-20 04:02 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Ethan Furman <ethan@stoneleaf.us> - 2013-12-18 07:23 -0800
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-18 08:53 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-12-18 19:29 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-19 16:20 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-18 17:15 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-19 17:12 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-20 04:28 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Neil Cerutti <neilc@norwich.edu> - 2013-12-19 18:40 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-20 07:18 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-19 19:38 -0500
                Re: Experiences/guidance on teaching Python as a first programming language "Rhodri James" <rhodri@wildebst.org.uk> - 2013-12-20 00:45 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-20 02:16 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-12-20 18:58 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Ned Batchelder <ned@nedbatchelder.com> - 2013-12-20 21:04 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-27 14:35 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Terry Reedy <tjreedy@udel.edu> - 2013-12-18 17:33 -0500
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-19 17:06 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-20 04:18 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-12-19 00:21 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve@pearwood.info> - 2013-12-18 07:53 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Devin Jeanpierre <jeanpierreda@gmail.com> - 2013-12-17 18:33 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 14:01 +1100
                Re: Experiences/guidance on teaching Python as a first programming language Devin Jeanpierre <jeanpierreda@gmail.com> - 2013-12-17 19:12 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 14:24 +1100
                Re: Experiences/guidance on teaching Python as a first programming language "Rhodri James" <rhodri@wildebst.org.uk> - 2013-12-19 00:49 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-19 11:54 +1100
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-18 20:29 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-19 04:50 +0000
                Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-18 21:09 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-12-19 05:36 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-12-19 21:31 +0000
                Re: Experiences/guidance on teaching Python as a first programming language Roy Smith <roy@panix.com> - 2013-12-19 19:30 -0500
              Re: Experiences/guidance on teaching Python as a first programming language rusi <rustompmody@gmail.com> - 2013-12-18 01:18 -0800
                Re: Experiences/guidance on teaching Python as a first programming language Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-12-18 10:06 +0000
            Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-18 01:10 +1100
          Re: Experiences/guidance on teaching Python as a first programming language Wolfgang Keller <feliphil@gmx.net> - 2013-12-17 16:22 +0100
            Re: Experiences/guidance on teaching Python as a first programming language Wolfgang Keller <feliphil@gmx.net> - 2013-12-19 16:14 +0100
              Re: Experiences/guidance on teaching Python as a first programming   language Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-12-20 09:42 +1300
                Re: Experiences/guidance on teaching Python as a first programming language Chris Angelico <rosuav@gmail.com> - 2013-12-20 07:51 +1100
        Re: Experiences/guidance on teaching Python as a first programming language dkcombs@panix.com (David Combs) - 2014-01-29 03:09 +0000

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