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Re: Brython - Python in the browser

Newsgroups comp.lang.python
Date 2012-12-21 08:16 -0800
References <c0be76ec-d55b-4f6c-9892-a80b482ff5bb@googlegroups.com> <mailman.1077.1355962055.29569.python-list@python.org> <9122ba06-bc02-42a3-84a6-568c3fab4598@googlegroups.com> <CAPTjJmrc6863hPT972UWDk0kYjGV+-+oVsO8DJUY2tEdUVJgNw@mail.gmail.com> <mailman.1120.1356048001.29569.python-list@python.org>
Subject Re: Brython - Python in the browser
From Pierre Quentel <pierre.quentel@gmail.com>
Message-ID <mailman.1158.1356106597.29569.python-list@python.org> (permalink)

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> <= is a comparison expression operator, which is completely different. 
> It is just wrong for this usage. I am 99.9% sure you will come to regret 
> it eventually. Better to make the change now than in Brython2 or Brython3.

I am 99.99% sure of the contrary, having used this syntax for more than 3 years now, as the users of the Karrigell framework with the HTMLTags module

Another point why there is no possible confusion is that when <= is a comparison operator, it is never used in an standalone expression like "a <= b", with the left term of the comparison starting the line ; it is always used in an expression like "if x <= 10", "while x <= 5", "assert x <= 0", "return foo <= bar" etc.

So when you see a line like

doc <= DIV('hello')

it should be obvious that you are not *comparing* doc and DIV('hello'), because if it was the case, the line would do nothing

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Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-19 10:19 -0800
  Re: Brython - Python in the browser jkn <jkn_gg@nicorp.f9.co.uk> - 2012-12-19 14:59 -0800
  Re: Brython - Python in the browser Terry Reedy <tjreedy@udel.edu> - 2012-12-19 19:07 -0500
    Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-20 01:37 -0800
      Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-20 20:56 +1100
      Re: Brython - Python in the browser Terry Reedy <tjreedy@udel.edu> - 2012-12-20 18:59 -0500
        Re: Brython - Python in the browser Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-12-21 02:05 +0000
          Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-21 16:07 +1100
        Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 08:16 -0800
          Re: Brython - Python in the browser Stefan Behnel <stefan_ml@behnel.de> - 2012-12-21 17:52 +0100
          Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-21 11:31 -0700
            Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 12:59 -0800
              Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-21 14:17 -0700
            Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 12:59 -0800
        Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 08:16 -0800
      Re: Brython - Python in the browser Rouslan Korneychuk <rouslank@msn.com> - 2012-12-21 03:31 -0500
        Re: Brython - Python in the browser Terry Reedy <tjreedy@udel.edu> - 2012-12-21 04:44 -0500
    Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-20 01:37 -0800
  Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-19 17:54 -0700
    Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-20 01:42 -0800
      Re: Brython - Python in the browser Stefan Behnel <stefan_ml@behnel.de> - 2012-12-21 12:25 +0100
        Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 04:38 -0800
          Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-21 23:57 +1100
            Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 07:36 -0800
              Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 02:48 +1100
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 08:36 -0800
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 09:52 +1100
                Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-21 16:45 -0700
                Re: Brython - Python in the browser Amirouche Boubekki <amirouche.boubekki@gmail.com> - 2012-12-22 00:50 +0100
                Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-21 16:51 -0700
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 23:59 -0800
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 23:59 -0800
                Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-21 16:57 -0700
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 11:08 +1100
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 23:57 -0800
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 19:31 +1100
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-22 00:54 -0800
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 20:08 +1100
                Re: Brython - Python in the browser Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-12-22 11:05 +0000
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 23:11 +1100
                Re: Brython - Python in the browser Dan Sommers <dan@tombstonezero.net> - 2012-12-22 20:31 +0000
                Re: Brython - Python in the browser Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-22 13:53 -0700
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-23 08:49 +1100
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-22 00:54 -0800
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 23:57 -0800
                Re: Brython - Python in the browser Chris Angelico <rosuav@gmail.com> - 2012-12-22 11:09 +1100
                Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 08:36 -0800
            Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 07:36 -0800
          Re: Brython - Python in the browser Duncan Booth <duncan.booth@invalid.invalid> - 2012-12-21 13:14 +0000
            Re: Brython - Python in the browser Stefan Behnel <stefan_ml@behnel.de> - 2012-12-21 14:34 +0100
        Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-21 04:38 -0800
        Re: Brython - Python in the browser Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-12-22 02:31 +0000
    Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-20 01:42 -0800
  Re: Brython - Python in the browser Terry Reedy <tjreedy@udel.edu> - 2012-12-19 21:46 -0500
  Re: Brython - Python in the browser Jamie Paul Griffin <jamie@kode5.net> - 2012-12-20 11:32 +0000
  Re: Brython - Python in the browser Pierre Quentel <pierre.quentel@gmail.com> - 2012-12-22 01:01 -0800

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