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Groups > comp.lang.python > #48847
| References | (3 earlier) <2e92b4c7-31be-40d2-a906-ab19f3630dfa@googlegroups.com> <mailman.3627.1371742717.3114.python-list@python.org> <baf4de3c-e4ff-42c0-8d65-2f6cf825735c@googlegroups.com> <51c3a4f8$0$29999$c3e8da3$5496439d@news.astraweb.com> <b1ef7774-b733-4d5c-85b3-dc1c5a8c4a3e@googlegroups.com> |
|---|---|
| Date | 2013-06-21 17:10 +1000 |
| Subject | Re: Default Value |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.3655.1371798652.3114.python-list@python.org> (permalink) |
On Fri, Jun 21, 2013 at 1:16 PM, Rick Johnson <rantingrickjohnson@gmail.com> wrote: > On Thursday, June 20, 2013 7:57:28 PM UTC-5, Steven D'Aprano wrote: >> Python functions are >> created *once*, when defined. The cost of building the >> function -- compiling the source code to byte code, >> assembling the pieces into a function object, binding it >> to a name -- happens once and once only, not every time >> you call the function. So it is reasonable to expect that >> since the function is defined once, so are any default >> arguments. >> > > Here you go again with this diversionary tactics! Of course > the function is only compiled once! Anything else would be > ludicrous. PAY ATTENTION! I'm not arguing that the damn > function should be compiled each time it's called, no, i am > arguing that each call to a subroutine should be a UNIQUE > TRANSACTION. That means that no state can be carried from > one transaction to another. Why should that be? Why is a subroutine not allowed to retain any state? You're free to write code in a purely functional style if you like - all objects must be immutable, all functions must have no side effects and simply return a value. That's not the only way to code, and it is *definitely* not a rule to be codified into Python. One of Python's strengths is that it permits many styles of programming, without shoehorning every programmer and every task into one model. Of course, RickPy 4000 is welcome to enforce all these sorts of inane rules if it likes. I shan't be using it if it does. ChrisA
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Default Value Ahmed Abdulshafy <abdulshafy@gmail.com> - 2013-06-19 12:17 -0700
Re: Default Value Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2013-06-19 22:35 +0300
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-19 12:38 -0700
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-20 05:57 -0700
Re: Default Value Roy Smith <roy@panix.com> - 2013-06-20 09:19 -0400
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-20 06:31 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 00:17 +0000
Re: Default Value Roy Smith <roy@panix.com> - 2013-06-20 20:25 -0400
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-20 07:49 -0700
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-21 01:38 +1000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-20 11:05 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 00:57 +0000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-20 20:16 -0700
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-21 17:10 +1000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 07:32 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 16:22 +0000
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 15:57 +0000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 10:01 -0700
Re: Default Value Rotwang <sg552@hotmail.co.uk> - 2013-06-21 18:47 +0100
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 11:26 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 18:37 +0000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 12:18 -0700
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 12:35 -0700
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-22 05:07 +1000
Re: Default Value Neil Cerutti <neilc@norwich.edu> - 2013-06-21 19:20 +0000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 13:27 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-22 01:31 +0000
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-22 11:40 +1000
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 18:42 -0700
Re: Default Value MRAB <python@mrabarnett.plus.com> - 2013-06-22 03:04 +0100
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 19:32 -0700
Re: Default Value MRAB <python@mrabarnett.plus.com> - 2013-06-22 20:36 +0100
Re: Default Value Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-06-22 18:51 -0400
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-21 19:43 -0700
Re: Default Value Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-06-22 09:26 +0100
Re: Default Value MRAB <python@mrabarnett.plus.com> - 2013-06-21 20:25 +0100
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 13:44 -0700
Re: Default Value MRAB <python@mrabarnett.plus.com> - 2013-06-21 23:49 +0100
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 16:51 -0700
Re: Default Value MRAB <python@mrabarnett.plus.com> - 2013-06-22 02:54 +0100
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-22 01:15 +0000
Re: Default Value Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-21 19:27 -0600
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-21 19:32 -0700
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 19:55 -0700
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-21 23:23 -0700
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-22 08:07 -0700
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-22 08:31 -0700
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-22 09:11 -0700
Re: Default Value Grant Edwards <invalid@invalid.invalid> - 2013-06-24 14:22 +0000
Re: [SPAM] Re: Default Value MRAB <python@mrabarnett.plus.com> - 2013-06-24 16:22 +0100
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-22 11:41 +1000
Re: Default Value Michael Torrie <torriem@gmail.com> - 2013-06-21 20:46 -0600
Re: Default Value Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-06-22 16:40 +0200
Re: Default Value Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-06-22 12:49 -0400
Re: Default Value Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-22 12:57 -0600
Re: Default Value Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-06-22 18:48 -0400
Re: Default Value Rotwang <sg552@hotmail.co.uk> - 2013-06-22 00:40 +0100
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 18:15 -0700
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-22 11:37 +1000
Re: Default Value Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-21 19:42 -0600
Re: Default Value Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-21 19:38 -0600
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 19:40 -0700
Re: Default Value Rotwang <sg552@hotmail.co.uk> - 2013-06-22 03:01 +0100
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-22 12:18 +1000
Re: Default Value Rotwang <sg552@hotmail.co.uk> - 2013-06-22 03:25 +0100
Re: Default Value Rotwang <sg552@hotmail.co.uk> - 2013-06-22 18:19 +0100
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-22 11:49 -0700
Re: Default Value Rotwang <sg552@hotmail.co.uk> - 2013-06-23 01:49 +0100
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-20 10:12 -0700
Re: Default Value Chris Angelico <rosuav@gmail.com> - 2013-06-21 03:19 +1000
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-20 10:30 -0700
Re: Default Value Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-20 11:57 -0600
Re: Default Value rusi <rustompmody@gmail.com> - 2013-06-20 11:15 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 01:08 +0000
Re: Default Value Tim Chase <python.list@tim.thechases.com> - 2013-06-20 20:26 -0500
Re: Default Value Roy Smith <roy@panix.com> - 2013-06-20 21:40 -0400
Re: Default Value Tim Chase <python.list@tim.thechases.com> - 2013-06-20 21:02 -0500
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-20 11:07 -0700
Re: Default Value alex23 <wuwei23@gmail.com> - 2013-06-21 10:55 +1000
Re: Default Value 88888 Dihedral <dihedral88888@gmail.com> - 2013-06-20 19:18 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 02:26 +0000
Re: Default Value "Lefavor, Matthew (GSFC-582.0)[MICROTEL LLC]" <matthew.lefavor@nasa.gov> - 2013-06-20 17:28 -0500
Re: Default Value Rick Johnson <rantingrickjohnson@gmail.com> - 2013-06-21 08:17 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-21 01:28 +0000
Re: Default Value Gary Herron <gherron@digipen.edu> - 2013-06-19 12:57 -0700
Re: Default Value Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-06-20 01:17 +0000
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