Re: Python was designed (was Re: Multi-threading in Python vs Java)

Date	2013-10-15 09:48 +0200
From	Antoon Pardon <antoon.pardon@rece.vub.ac.be>
Subject	Re: Python was designed (was Re: Multi-threading in Python vs Java)
References	<mailman.1046.1381617489.18130.python-list@python.org> <l3hg3g$2hd$1@dont-email.me> <CAPTjJmoBQoS6ZyHqQkDwdB4fO1sufUMnZC+67c=0W8cg5Gz+5Q@mail.gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.1094.1381823313.18130.python-list@python.org> (permalink)

Show all headers | View raw

Op 15-10-13 01:11, Chris Angelico schreef:
> On Tue, Oct 15, 2013 at 6:18 AM, John Nagle <nagle@animats.com> wrote:

> 
>> Operator "+" as concatenation for built-in arrays but addition
>> for NumPy arrays.
> 
> ... NumPy definitely isn't part of the language. It's not even part of
> the standard library, it's fully third-party.

That doesn't matter. Adding and concating are different operations and
their are types in which both occur rather naturally. So as a designer
of such a class you have to choose for which operation you use the
natural python operator and for which operation you have to do it
differently. NumPy is just an example that you can't escape this sort
of incompatibilities in python.

-- 
Antoon Pardon

Thread

Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-13 09:37 +1100
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-13 03:38 +0000
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-13 15:34 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Roy Smith <roy@panix.com> - 2013-10-13 09:04 -0400
      Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-14 03:39 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) John Nagle <nagle@animats.com> - 2013-10-14 12:18 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 09:43 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 10:11 +1100
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve@pearwood.info> - 2013-10-15 08:50 +0000
        Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-15 08:48 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-14 18:31 -0700
      Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-14 20:02 -0700
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-15 13:26 -0700
          Re: Python was designed (was Re: Multi-threading in Python vs Java) Grant Edwards <invalid@invalid.invalid> - 2013-10-15 21:46 +0000
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-16 10:45 -0700
              Re: Python was designed (was Re: Multi-threading in Python vs Java) Grant Edwards <invalid@invalid.invalid> - 2013-10-16 18:42 +0000
          Re: Python was designed (was Re: Multi-threading in Python vs Java) "Rhodri James" <rhodri@wildebst.demon.co.uk> - 2013-10-15 23:01 +0100
            Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-15 21:45 -0700
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-16 10:57 -0700
              Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-16 11:25 -0700
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Skip Montanaro <skip@pobox.com> - 2013-10-16 13:49 -0500
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-17 07:40 +1100
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-16 17:13 -0700
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-17 11:28 +1100
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Ned Batchelder <ned@nedbatchelder.com> - 2013-10-16 20:47 -0400
                Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-16 18:30 -0700
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2013-10-17 11:20 +0300
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-16 17:53 -0700
                Re: Python was designed Piet van Oostrum <piet@vanoostrum.org> - 2013-10-16 22:33 -0400
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve@pearwood.info> - 2013-10-17 05:24 +0000
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Grant Edwards <invalid@invalid.invalid> - 2013-10-17 13:43 +0000
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-17 12:01 +1100
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Ned Batchelder <ned@nedbatchelder.com> - 2013-10-16 22:09 -0400
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-17 08:02 +0100
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-17 07:49 -0700
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-18 01:52 +0000
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-17 19:08 -0700
                Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-17 20:34 -0700
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-18 03:56 +0000
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-18 02:00 +1100
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-17 16:00 +0100
              Re: Python was designed (was Re: Multi-threading in Python vs Java) Grant Edwards <invalid@invalid.invalid> - 2013-10-16 18:44 +0000
              Re: Python was designed (was Re: Multi-threading in Python vs Java) alex23 <wuwei23@gmail.com> - 2013-10-17 10:26 +1000
          Re: Python was designed Piet van Oostrum <piet@vanoostrum.org> - 2013-10-15 23:20 -0400
          Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-15 20:53 -0700
          Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-17 10:32 -0700
            Re: Python was designed (was Re: Multi-threading in Python vs Java) MRAB <python@mrabarnett.plus.com> - 2013-10-17 18:44 +0100
              Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-17 20:15 -0700
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-17 19:08 +0100
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-17 12:49 -0700
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Ned Batchelder <ned@nedbatchelder.com> - 2013-10-17 16:57 -0400
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Ethan Furman <ethan@stoneleaf.us> - 2013-10-17 15:10 -0700
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-17 18:59 -0700
              Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-18 02:57 +0000
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-15 23:48 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Terry Reedy <tjreedy@udel.edu> - 2013-10-14 21:35 -0400
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Roy Smith <roy@panix.com> - 2013-10-14 21:50 -0400
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-15 08:21 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 12:48 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Janssen <dreamingforward@gmail.com> - 2013-10-14 19:11 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 13:19 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-15 03:18 +0000
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 14:29 +1100
      Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-14 20:48 -0700
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve@pearwood.info> - 2013-10-15 05:51 +0000
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-10-15 09:48 +0200
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 19:57 +1100
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-15 15:01 +0000
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-16 06:09 +1100
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Tim Chase <python.list@tim.thechases.com> - 2013-10-15 16:17 -0500
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-10-15 12:26 +0200
    Re: Python was designed (was Re: Multi-threading in Python vs Java) wxjmfauth@gmail.com - 2013-10-15 13:11 -0700
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-15 22:00 +0100
        Re: Python was designed (was Re: Multi-threading in Python vs Java) wxjmfauth@gmail.com - 2013-10-24 23:14 -0700
          Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-25 19:05 +0100
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-26 04:46 +0000
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-14 14:11 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-14 22:43 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-15 09:45 +1100
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-15 17:18 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-16 23:49 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-17 18:15 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-17 05:39 -0700
      Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-17 06:00 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Terry Reedy <tjreedy@udel.edu> - 2013-10-17 16:15 -0400
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-17 21:41 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-18 03:14 +0000
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-18 15:12 +1100
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-18 04:45 +0000
          Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-18 15:53 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-19 09:57 +0000
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-19 21:49 +1100
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-17 00:23 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Christian Gollwitzer <auriocus@gmx.de> - 2013-10-17 09:42 +0200
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-17 19:24 +1100
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-18 01:58 +0000
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Piet van Oostrum <piet@vanoostrum.org> - 2013-10-17 12:58 -0400
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-17 12:37 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Roy Smith <roy@panix.com> - 2013-10-17 20:01 -0400
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-18 11:09 +1100
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-17 13:54 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-18 13:32 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-18 21:41 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-18 22:26 -0700
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-19 16:35 +1100
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-21 02:07 +0000
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Roy Smith <roy@panix.com> - 2013-10-20 22:21 -0400
          Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-20 21:44 -0700
        Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-21 17:56 +1100
          Re: Python was designed (was Re: Multi-threading in Python vs Java) Roy Smith <roy@panix.com> - 2013-10-21 09:05 -0400
            Re: Python was designed (was Re: Multi-threading in Python vs Java) Lele Gaifax <lele@metapensiero.it> - 2013-10-22 09:38 +0200
              Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve@pearwood.info> - 2013-10-23 08:16 +0000
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Ned Batchelder <ned@nedbatchelder.com> - 2013-10-23 06:36 -0400
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Grant Edwards <invalid@invalid.invalid> - 2013-10-23 14:21 +0000
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-10-24 00:31 +1300
                Re: Python was designed (was Re: Multi-threading in Python vs Java) Lele Gaifax <lele@metapensiero.it> - 2013-10-23 17:56 +0200
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-18 13:56 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 23:44 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-21 18:01 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-21 08:27 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-21 18:31 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-21 08:39 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-21 18:43 +1100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-21 09:11 +0100
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve@pearwood.info> - 2013-10-21 08:24 +0000
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Metallicow <metaliobovinus@gmail.com> - 2013-10-21 01:39 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-21 01:43 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Metallicow <metaliobovinus@gmail.com> - 2013-10-21 02:17 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-21 05:50 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-22 02:29 +0000
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Skip Montanaro <skip@pobox.com> - 2013-10-22 07:02 -0500
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Metallicow <metaliobovinus@gmail.com> - 2013-10-23 22:31 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-21 19:55 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) rusi <rustompmody@gmail.com> - 2013-10-21 20:19 -0700
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-22 17:13 +1100
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-22 00:51 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-25 01:12 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-26 06:19 +0000
      Re: Python was designed (was Re: Multi-threading in Python vs Java) Chris Angelico <rosuav@gmail.com> - 2013-10-26 17:36 +1100
    Re: Python was designed Paul Rubin <no.email@nospam.invalid> - 2013-10-26 10:36 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-25 23:59 -0700
  Re: Python was designed (was Re: Multi-threading in Python vs Java) Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-26 12:24 -0700
    Re: Python was designed (was Re: Multi-threading in Python vs Java) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-26 22:31 +0100

csiph-web