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Groups > comp.lang.python > #99526

Re: What is a function parameter =[] for?

From Alan Bawden <alan@csail.mit.edu>
Newsgroups comp.lang.python
Subject Re: What is a function parameter =[] for?
Date 2015-11-25 23:27 -0500
Organization MIT Computer Science & Artificial Intelligence Lab
Message-ID <w2dd1uxbd1c.fsf@daphne.csail.mit.edu> (permalink)
References (14 earlier) <56550273$0$1585$c3e8da3$5496439d@news.astraweb.com> <mailman.64.1448445391.20593.python-list@python.org> <5655f27b$0$1614$c3e8da3$5496439d@news.astraweb.com> <w2dh9k9bjhq.fsf@daphne.csail.mit.edu> <mailman.109.1448504727.20593.python-list@python.org>

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Chris Angelico <rosuav@gmail.com> writes:

> On Thu, Nov 26, 2015 at 1:08 PM, Alan Bawden <alan@csail.mit.edu> wrote:
>> (Note that nothing in the documentation I can find actually _guarantees_
>> that a Python implementation will only have one unique empty tuple, but
>> I wouldn't be suprised if the following is nonetheless true in all
>> current implementations:
>>
>>    >>> tuple([]) is tuple([])
>>    True
>>
>> )
>
> Jython 2.5.3 (, Oct 8 2014, 03:39:09)
> [OpenJDK 64-Bit Server VM (Oracle Corporation)] on java1.7.0_85
> Type "help", "copyright", "credits" or "license" for more information.
>>>> tuple([]) is tuple([])
> False
>
> Python 2.7.8 (2.4.0+dfsg-3, Dec 20 2014, 13:30:46)
> [PyPy 2.4.0 with GCC 4.9.2] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>>> tuple([]) is tuple([])
> False
>
> ChrisA

I said I wouldn't be suprised if it was always true, but that doesn't
imply that I need to be suprised if it is sometimes false!

Having said that, I _am_ curious whether that remains False for various
other variant expressions.  "tuple([])" is actually a rather perverse
way to obtain an empty tuple.  How about plain "() is ()"?  While
"tuple([]) is tuple([])" is False is some implementations, it is still
possible that "() is ()" is True in those same implementations,
depending on how that compiles.

An even more perverse way to obtain an empty tuple is "tuple(x for x in ())"
and in fact in CPython:

   >>> tuple(x for x in ()) is tuple(x for x in ())
   False

If I had thought to try that earlier, I wouldn't have bothered making
the parenthetical remark to are responding to -- because none of this
has any relevance to my original point about "BUILD_TUPLE 0".

-- 
Alan Bawden

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Thread

What is a function parameter =[] for? fl <rxjwg98@gmail.com> - 2015-11-18 13:08 -0800
  Re: What is a function parameter =[] for? John Gordon <gordon@panix.com> - 2015-11-18 22:05 +0000
  Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-18 15:11 -0700
    Re: What is a function parameter =[] for? Grant Edwards <invalid@invalid.invalid> - 2015-11-18 22:33 +0000
    Re: What is a function parameter =[] for? fl <rxjwg98@gmail.com> - 2015-11-18 14:38 -0800
      Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-18 15:47 -0700
      Re: What is a function parameter =[] for? fl <rxjwg98@gmail.com> - 2015-11-18 14:48 -0800
    Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-18 23:14 +0000
      Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-19 10:22 +1100
        Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 01:41 +0000
          Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-19 12:59 +1100
            Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 11:41 +0000
              Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-19 22:58 +1100
              Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-19 23:45 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-19 08:42 -0700
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-22 14:58 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 13:38 +0100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 04:29 +1100
          Re: What is a function parameter =[] for? Ben Finney <ben+python@benfinney.id.au> - 2015-11-19 13:08 +1100
          Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-19 13:15 +1100
      Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-18 17:02 -0700
      Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-19 11:14 +1100
        Re: What is a function parameter =[] for? fl <rxjwg98@gmail.com> - 2015-11-18 16:34 -0800
          Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-18 17:52 -0700
          Re: What is a function parameter =[] for? MRAB <python@mrabarnett.plus.com> - 2015-11-19 01:02 +0000
          Re: What is a function parameter =[] for? Ben Finney <ben+python@benfinney.id.au> - 2015-11-19 12:26 +1100
          Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-19 22:38 +1100
      Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-19 23:19 +1100
        Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 13:19 +0000
          Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-20 00:45 +1100
          Re: What is a function parameter =[] for? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-11-19 09:05 -0500
          Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-20 03:01 +1100
            Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-20 04:30 +1100
            Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 17:30 +0000
              Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-20 04:45 +1100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 18:19 +0000
                Re: What is a function parameter =[] for? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-11-19 18:26 +0000
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 18:50 +0000
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-20 06:09 +1100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 19:48 +0000
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-20 06:58 +1100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-20 11:26 +1100
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-19 16:36 -0800
                Re: What is a function parameter =[] for? Laura Creighton <lac@openend.se> - 2015-11-20 02:00 +0100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-19 17:59 -0700
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-19 20:39 +0200
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-19 11:42 -0700
                Re: What is a function parameter =[] for? Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2015-11-19 18:44 +0000
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-20 06:19 +1100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-19 21:21 +0000
                Re: What is a function parameter =[] for? Michael Torrie <torriem@gmail.com> - 2015-11-19 15:55 -0700
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-20 00:11 +0000
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-19 16:27 -0800
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 14:43 +0100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 01:00 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 15:24 +0100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 01:34 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 16:01 +0100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 16:03 +0100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 16:12 +0100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 02:17 +1100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 04:54 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 16:46 +0100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 02:48 +1100
                Re: What is a function parameter =[] for? Random832 <random832@fastmail.com> - 2015-11-24 16:28 +0000
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 03:38 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 17:41 +0100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-24 09:56 -0700
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 18:32 +0100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-24 10:53 -0700
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-24 11:04 -0700
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 19:45 +0100
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-24 10:54 -0800
                Re: What is a function parameter =[] for? Random832 <random832@fastmail.com> - 2015-11-24 19:00 +0000
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 11:34 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-24 12:15 -0700
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-24 12:15 -0700
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 21:54 +0100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-24 21:14 +0000
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 22:25 +0100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 11:36 +1100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 11:56 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-25 10:56 +0100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-26 04:40 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-25 19:27 +0100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-26 11:10 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-25 13:39 -0700
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-25 22:05 +0100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-26 09:06 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-25 15:38 -0700
                Re: What is a function parameter =[] for? Alan Bawden <alan@csail.mit.edu> - 2015-11-25 21:08 -0500
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-26 13:25 +1100
                Re: What is a function parameter =[] for? Alan Bawden <alan@csail.mit.edu> - 2015-11-25 23:27 -0500
                Re: What is a function parameter =[] for? Dave Farrance <df@see.replyto.invalid> - 2015-11-26 10:34 +0000
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-26 12:58 +0200
                Re: What is a function parameter =[] for? Dave Farrance <df@see.replyto.invalid> - 2015-11-26 11:12 +0000
                Object identity has no necessary connection to memory location (was: What is a function parameter =[] for?) Ben Finney <ben+python@benfinney.id.au> - 2015-11-26 22:24 +1100
                Re: Object identity has no necessary connection to memory location (was: What is a function parameter =[] for?) Dave Farrance <df@see.replyto.invalid> - 2015-11-26 11:50 +0000
                Re: Object identity has no necessary connection to memory location Ben Finney <ben+python@benfinney.id.au> - 2015-11-27 07:00 +1100
                Re: Object identity has no necessary connection to memory location Steven D'Aprano <steve@pearwood.info> - 2015-11-27 13:17 +1100
                Re: Object identity has no necessary connection to memory location Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-11-26 21:44 +0000
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-26 22:24 +1100
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-26 13:27 +0200
                Re: Object identity has no necessary connection to memory location (was: What is a function parameter =[] for?) Chris Angelico <rosuav@gmail.com> - 2015-11-26 22:49 +1100
                Re: Object identity has no necessary connection to memory location Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-26 13:04 +0100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-27 12:34 +1100
                Re: What is a function parameter =[] for? Ben Finney <ben+python@benfinney.id.au> - 2015-11-27 12:40 +1100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-27 13:44 +1100
                Re: What is a function parameter =[] for? MRAB <python@mrabarnett.plus.com> - 2015-11-27 02:56 +0000
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-27 23:57 +1100
                Re: What is a function parameter =[] for? Laura Creighton <lac@openend.se> - 2015-11-27 14:24 +0100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-28 00:29 +1100
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-27 14:06 +1100
                Re: What is a function parameter =[] for? Ben Finney <ben+python@benfinney.id.au> - 2015-11-27 15:56 +1100
                Re: What is a function parameter =[] for? Random832 <random832@fastmail.com> - 2015-11-26 23:33 -0500
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-25 19:46 -0700
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-26 14:02 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-26 09:15 +0100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-24 14:33 -0700
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 09:09 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-19 12:25 -0700
              Re: What is a function parameter =[] for? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-11-19 18:20 +0000
              Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-20 12:05 +1100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-20 11:59 +0000
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-20 04:12 -0800
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-20 12:39 +0000
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-21 00:04 +1100
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-20 05:30 -0800
                Re: What is a function parameter =[] for? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-11-20 08:34 -0500
                Re: What is a function parameter =[] for? Random832 <random832@fastmail.com> - 2015-11-20 14:32 +0000
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-20 09:18 -0700
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-22 23:01 +1100
                Re: What is a function parameter =[] for? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-11-23 12:30 +1300
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 15:38 +0100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 15:34 +0100
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-24 06:50 -0800
                Re: What is a function parameter =[] for? Terry Reedy <tjreedy@udel.edu> - 2015-11-24 12:46 -0500
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 19:27 +0100
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-20 14:28 +0200
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-20 12:53 +0000
                Re: What is a function parameter =[] for? Random832 <random832@fastmail.com> - 2015-11-20 14:35 +0000
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-22 21:06 +1100
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-22 14:35 +0200
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-20 09:16 -0700
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-20 18:31 +0200
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-21 03:37 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-20 09:39 -0700
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-21 03:24 +1100
                Re: What is a function parameter =[] for? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-20 09:29 -0700
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-20 18:41 +0200
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-21 03:36 +1100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-22 14:43 +1100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-22 13:21 +0000
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-22 14:28 +0000
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-23 10:44 +1100
                Re: What is a function parameter =[] for? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-11-23 00:04 +0000
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-23 00:37 +0000
                Re: What is a function parameter =[] for? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-11-23 11:32 +0000
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-23 04:05 -0800
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-23 14:23 +0200
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-23 11:20 +1100
                Re: What is a function parameter =[] for? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-11-23 12:43 +1300
                Re: What is a function parameter =[] for? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-11-23 18:47 +1100
                Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-23 10:40 +0000
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-24 00:58 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 15:58 +0100
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 04:56 +1100
                Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 15:18 +0100
              Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 14:48 +0100
      Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 12:36 +0100
      Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-24 23:07 +1100
      Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 13:48 +0100
        Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-24 14:57 +0200
          Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-24 06:18 -0800
            Re: What is a function parameter =[] for? BartC <bc@freeuk.com> - 2015-11-24 14:43 +0000
              Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-25 01:54 +1100
            Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-24 16:10 +0100
              Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-24 07:27 -0800
                Re: What is a function parameter =[] for? Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2015-11-24 17:25 +0000
                Re: What is a function parameter =[] for? Ned Batchelder <ned@nedbatchelder.com> - 2015-11-24 09:35 -0800
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-24 20:13 +0200
                Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 05:33 +1100
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-24 21:17 +0200
            Re: What is a function parameter =[] for? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-11-24 11:27 -0500
            Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 11:39 +1100
              Re: What is a function parameter =[] for? Laura Creighton <lac@openend.se> - 2015-11-25 01:55 +0100
              A name refers to an object, an object has a value, equality compares values (was: What is a function parameter =[] for?) Ben Finney <ben+python@benfinney.id.au> - 2015-11-25 13:17 +1100
                Re: A name refers to an object, an object has a value, equality compares values Marko Rauhamaa <marko@pacujo.net> - 2015-11-25 08:44 +0200
                Re: A name refers to an object, an object has a value, equality compares values Chris Angelico <rosuav@gmail.com> - 2015-11-25 19:27 +1100
              Re: What is a function parameter =[] for? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-25 10:36 +0100
                Re: What is a function parameter =[] for? Jussi Piitulainen <harvest@should.be.invalid> - 2015-11-25 13:39 +0200
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-25 14:48 +0200
                Re: What is a function parameter =[] for? Chris Angelico <rosuav@gmail.com> - 2015-11-26 00:50 +1100
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-25 16:08 +0200
                Re: What is a function parameter =[] for? Jussi Piitulainen <harvest@should.be.invalid> - 2015-11-25 17:13 +0200
                Re: What is a function parameter =[] for? Marko Rauhamaa <marko@pacujo.net> - 2015-11-25 18:44 +0200
                Re: What is a function parameter =[] for? Jussi Piitulainen <harvest@should.be.invalid> - 2015-11-25 20:30 +0200
          Re: What is a function parameter =[] for? Steven D'Aprano <steve@pearwood.info> - 2015-11-25 03:11 +1100

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