Re: "Don't rebind built-in names*" - it confuses readers

References	<mailman.3001.1370909708.3114.python-list@python.org> <dffd70ad-4e9a-45cd-914b-7f1388ded5a2@a9g2000pbq.googlegroups.com> <51b69332$0$29997$c3e8da3$5496439d@news.astraweb.com>
Date	2013-06-11 13:57 +1000
Subject	Re: "Don't rebind built-in names*" - it confuses readers
From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.3007.1370923032.3114.python-list@python.org> (permalink)

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On Tue, Jun 11, 2013 at 1:02 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> Apart from Erlang, got any other examples? Because it seems to me that in
> languages with nested scopes or namespaces, shadowing higher levels is
> exactly the right thing to do. Certainly it would be a PITA, and defeat
> the purpose of having nested scopes, if inner names had to be globally
> unique.

I agree, and it's one of the reasons that I like the explicitness of
C's variable declarations. Sure, Python makes it easier to write code;
but it's easier to figure out what's a global and what's not when
locals are all declared. (Yes, it's not that hard for a human to
recognize when a name is being rebound as opposed to merely used, but
it's extra work for a lexer/syntax highlighter.)

ChrisA

Thread

"Don't rebind built-in names*" - it confuses readers Terry Jan Reedy <tjreedy@udel.edu> - 2013-06-10 20:14 -0400
  Re: "Don't rebind built-in names*" - it confuses readers rusi <rustompmody@gmail.com> - 2013-06-10 19:36 -0700
    Re: "Don't rebind built-in names*" - it confuses readers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-11 03:02 +0000
      Re: "Don't rebind built-in names*" - it confuses readers rusi <rustompmody@gmail.com> - 2013-06-10 20:30 -0700
        Re: "Don't rebind built-in names*" - it confuses readers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-11 05:52 +0000
        Re: "Don't rebind built-in names*" - it confuses readers Chris Angelico <rosuav@gmail.com> - 2013-06-11 17:20 +1000
      Re: "Don't rebind built-in names*" - it confuses readers Chris Angelico <rosuav@gmail.com> - 2013-06-11 13:57 +1000
      Re: "Don't rebind built-in names*" - it confuses readers Serhiy Storchaka <storchaka@gmail.com> - 2013-06-11 18:55 +0300
      Re: "Don't rebind built-in names*" - it confuses readers Mark Janssen <dreamingforward@gmail.com> - 2013-06-12 17:04 -0700
        Re: "Don't rebind built-in names*" - it confuses readers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-13 01:01 +0000
      Re: "Don't rebind built-in names*" - it confuses readers Chris Angelico <rosuav@gmail.com> - 2013-06-13 10:08 +1000
        Re: "Don't rebind built-in names*" - it confuses readers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-13 01:08 +0000
          Re: "Don't rebind built-in names*" - it confuses readers Chris Angelico <rosuav@gmail.com> - 2013-06-13 11:30 +1000
      Re: "Don't rebind built-in names*" - it confuses readers Skip Montanaro <skip@pobox.com> - 2013-06-12 19:18 -0500
      Re: "Don't rebind built-in names*" - it confuses readers Chris Angelico <rosuav@gmail.com> - 2013-06-13 10:33 +1000
      Re: "Don't rebind built-in names*" - it confuses readers Ethan Furman <ethan@stoneleaf.us> - 2013-06-12 17:30 -0700
  Re: "Don't rebind built-in names*" - it confuses readers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-11 02:56 +0000
    Re: "Don't rebind built-in names*" - it confuses readers Terry Jan Reedy <tjreedy@udel.edu> - 2013-06-11 02:06 -0400
    Re: "Don't rebind built-in names*" - it confuses readers Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-11 08:22 -0700
      Re: "Don't rebind built-in names*" - it confuses readers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-11 16:59 +0000
      Re: "Don't rebind built-in names*" - it confuses readers Chris Angelico <rosuav@gmail.com> - 2013-06-12 03:32 +1000

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