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Groups > comp.lang.python > #105013
| From | Marko Rauhamaa <marko@pacujo.net> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: Case Statements |
| Date | 2016-03-16 14:21 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <87vb4md362.fsf@elektro.pacujo.net> (permalink) |
| References | (5 earlier) <56E928D4.3000701@rece.vub.ac.be> <ncbac2$qtk$1@ger.gmane.org> <56E93ADD.9040500@rece.vub.ac.be> <mailman.191.1458126480.12893.python-list@python.org> <ncbf5e$uq4$1@dont-email.me> |
BartC <bc@freeuk.com>:
> On 16/03/2016 11:07, Mark Lawrence wrote:
>> but I still very much doubt we'll be adding a switch statement --
>> it's a "sexy" language design issue
>
> That's the first time I've heard a language feature common in C
> described as sexy.
Scheme has a "switch" statement (a "case" form). However, it is slightly
better equipped for it than Python:
* Scheme has an atom type ("symbol"). It corresponds to interned
strings and is supposed to be compared by reference.
* Scheme has defined three equality operators: "eq?", "eqv?" and
"equal?". Python only has two: "is" (~ "eq?") and "==" (~ "equal?").
The "case" form makes use of the operator "eqv?" that is missing from
Python ("eqv?" compares numbers numerically but is otherwise the same
as "eq?").
Marko
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Case Statements jj0gen0info@gmail.com - 2016-03-15 13:46 -0700
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-15 23:11 +0000
Re: Case Statements jj0gen0info@gmail.com - 2016-03-15 16:47 -0700
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-15 23:58 +0000
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 00:51 +0000
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 01:05 +0000
Re: Case Statements jj0gen0info@gmail.com - 2016-03-15 18:55 -0700
Re: Case Statements "Mario R. Osorio" <nimbiotics@gmail.com> - 2016-03-15 21:06 -0700
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 10:34 +0000
Re: Case Statements Steven D'Aprano <steve@pearwood.info> - 2016-03-16 23:56 +1100
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 04:26 +0000
Re: Case Statements Christian Gollwitzer <auriocus@gmx.de> - 2016-03-16 09:13 +0100
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 08:47 +0000
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-16 11:16 +0200
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-16 10:35 +0100
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 09:51 +0000
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 19:41 +0000
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 22:30 +0000
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-16 11:52 +0100
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 11:07 +0000
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 11:16 +0000
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 11:33 +0000
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-16 14:21 +0200
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 12:53 +0000
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-16 16:31 +0200
Re: Case Statements BartC <bc@freeuk.com> - 2016-03-16 15:00 +0000
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-16 19:07 +0200
Re: Case Statements Rustom Mody <rustompmody@gmail.com> - 2016-03-20 01:01 -0700
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-20 08:29 +0000
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-16 14:38 +0100
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 14:02 +0000
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-16 21:27 +0200
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-17 09:22 +0100
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-17 10:57 +0200
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-17 10:12 +0100
Re: Case Statements Steven D'Aprano <steve@pearwood.info> - 2016-03-17 11:19 +1100
Re: Case Statements Steven D'Aprano <steve@pearwood.info> - 2016-03-17 12:54 +1100
Re: Case Statements Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-03-17 18:45 +1300
Re: Case Statements Chris Angelico <rosuav@gmail.com> - 2016-03-17 17:30 +1100
Re: Case Statements Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-03-18 18:59 +1300
Re: Case Statements Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-03-17 17:29 +1100
Re: Case Statements Chris Angelico <rosuav@gmail.com> - 2016-03-17 17:48 +1100
Re: Case Statements Steven D'Aprano <steve@pearwood.info> - 2016-03-17 21:53 +1100
Re: Case Statements Chris Angelico <rosuav@gmail.com> - 2016-03-17 22:49 +1100
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-17 10:23 +0100
Re: Case Statements Chris Angelico <rosuav@gmail.com> - 2016-03-17 20:55 +1100
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-17 09:36 +0100
Re: Case Statements Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-03-17 09:38 +0100
Re: Case Statements l0r0m0a0i0l@gmail.com - 2016-03-16 06:15 -0700
Re: Case Statements Steven D'Aprano <steve@pearwood.info> - 2016-03-17 00:27 +1100
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 14:00 +0000
Re: Case Statements Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-16 13:59 +0000
Re: Case Statements l0r0m0a0i0l@gmail.com - 2016-03-16 07:21 -0700
Re: Case Statements Marko Rauhamaa <marko@pacujo.net> - 2016-03-16 16:33 +0200
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