Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #4578

Re: What other languages use the same data model as Python?

References	<4dbd1dbf$0$29991$c3e8da3$5496439d@news.astraweb.com> <sk9598-gli.ln1@svn.schaathun.net> <ippao9$mjr$1@speranza.aioe.org> <876698-vjj.ln1@svn.schaathun.net>
Date	2011-05-04 08:00 +1000
Subject	Re: What other languages use the same data model as Python?
From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.1125.1304460046.9059.python-list@python.org> (permalink)

Show all headers | View raw

On Wed, May 4, 2011 at 6:47 AM, Hans Georg Schaathun <hg@schaathun.net> wrote:
> This looks like plain old transmission by reference to me.
> I.e. the functions get a reference to an object and make any
> change to the object.

"Reference" being exactly what's passed around. There are now two
references to that object. Since names always contain references (not
objects), it's very easy to share mutable objects
(lists/dictionaries/etc). There's an easy way for a caller or callee
to guarantee that a mutable is safe - just slice it:

identify_call(my_list[:])

That gives the called function a shallow copy of the list, which it
can modify to its heart's content, but the original list isn't
changed. Callee can do the same, with an assignment command at the top
of the function (a_list=a_list[:]).

Chris Angelico

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-01 08:45 +0000
Re: What other languages use the same data model as Python? Alec Taylor <alec.taylor6@gmail.com> - 2011-05-01 19:00 +1000
Re: What other languages use the same data model as Python? Chris Rebert <clp2@rebertia.com> - 2011-05-01 02:04 -0700
Re: What other languages use the same data model as Python? Terry Reedy <tjreedy@udel.edu> - 2011-05-01 15:10 -0400
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-02 10:37 +1200
Re: What other languages use the same data model as Python? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-05-02 07:45 +0000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-02 13:12 +0000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-02 10:33 +1200
Re: What other languages use the same data model as Python? Terry Reedy <tjreedy@udel.edu> - 2011-05-01 21:42 -0400
Re: What other languages use the same data model as Python? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-02 00:28 -0700
Re: What other languages use the same data model as Python? Duncan Booth <duncan.booth@invalid.invalid> - 2011-05-02 08:43 +0000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-03 13:39 +0100
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-03 14:49 +0000
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-03 15:20 +0000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-03 22:10 +0100
Re: What other languages use the same data model as Python? Mel <mwilson@the-wire.com> - 2011-05-03 12:33 -0400
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-03 16:52 +0000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-03 21:47 +0100
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-04 08:00 +1000
Re: What other languages use the same data model as Python? Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-05-04 02:56 -0700
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-04 10:51 +0000
Re: What other languages use the same data model as Python? Paul Rubin <no.email@nospam.invalid> - 2011-05-04 03:58 -0700
Re: What other languages use the same data model as Python? Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-05-04 06:12 -0700
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 14:44 +0100
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-05 00:20 +1000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 18:09 +0100
Re: What other languages use the same data model as Python? Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-05-04 09:18 -0700
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 18:03 +0100
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-05 20:55 +1200
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-05 11:31 +0100
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-07 21:21 +1200
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-07 19:28 +1000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-08 10:39 +1200
Re: What other languages use the same data model as Python? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2011-05-20 20:56 +0000
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-08 02:17 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-07 23:10 -0500
Re: What other languages use the same data model as Python? rusi <rustompmody@gmail.com> - 2011-05-07 22:48 -0700
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-09 12:52 +1200
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-09 11:38 +0100
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-09 21:18 +1000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-09 21:53 +0100
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-09 14:29 +0000
Re: What other languages use the same data model as Python? Tim Golden <mail@timgolden.me.uk> - 2011-05-09 15:41 +0100
Re: What other languages use the same data model as Python? Ethan Furman <ethan@stoneleaf.us> - 2011-05-09 10:15 -0700
Re: What other languages use the same data model as Python? Mel <mwilson@the-wire.com> - 2011-05-09 13:38 -0400
Re: What other languages use the same data model as Python? Terry Reedy <tjreedy@udel.edu> - 2011-05-09 16:23 -0400
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-10 19:41 +1200
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-10 19:35 +1000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-11 10:47 +1200
Re: What other languages use the same data model as Python? Terry Reedy <tjreedy@udel.edu> - 2011-05-10 15:18 -0400
Re: What other languages use the same data model as Python? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2011-05-20 21:17 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-09 16:28 -0500
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-09 07:23 +0100
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 15:14 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 14:22 -0500
Re: What other languages use the same data model as Python? Benjamin Kaplan <benjamin.kaplan@case.edu> - 2011-05-04 15:46 -0400
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 14:58 -0500
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 21:40 +0100
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-05 21:31 +1200
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 14:50 +0000
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 12:14 +0000
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-05 22:37 +1000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 20:58 +0100
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 16:49 -0500
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-05 07:12 +0100
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-05 21:08 +1200
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-05 19:12 +1000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:30 +0000
Re: What other languages use the same data model as Python? TheSaint <nobody@nowhere.net.no> - 2011-05-07 20:18 +0800
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 12:49 +0000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:31 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 09:40 -0500
Re: What other languages use the same data model as Python? Roy Smith <roy@panix.com> - 2011-05-05 10:49 -0400
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 14:47 -0500
Re: What other languages use the same data model as Python? Ben Finney <ben+python@benfinney.id.au> - 2011-05-05 07:43 +1000
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-05 12:43 +1000
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 15:42 +0000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-07 22:04 +1200
Re: What other languages use the same data model as Python? Ben Finney <ben+python@benfinney.id.au> - 2011-05-08 06:09 +1000
Re: What other languages use the same data model as Python? Roy Smith <roy@panix.com> - 2011-05-07 16:24 -0400
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-08 10:54 +1200
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-08 09:43 +1000
Re: What other languages use the same data model as Python? Ben Finney <ben+python@benfinney.id.au> - 2011-05-08 11:16 +1000
Re: What other languages use the same data model as Python? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-07 23:16 -0700
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-08 16:32 +1000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-10 13:49 +1200
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-10 03:13 +0000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-10 14:05 +0000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-10 16:09 +0100
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-10 15:16 +0000
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-11 01:27 +1000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-10 16:40 +0100
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-11 01:44 +1000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-10 13:51 +1200
Re: What other languages use the same data model as Python? MRAB <python@mrabarnett.plus.com> - 2011-05-10 03:47 +0100
Re: What other languages use the same data model as Python? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-09 23:15 -0700
Re: What other languages use the same data model as Python? John Nagle <nagle@animats.com> - 2011-05-04 14:52 -0700
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 19:46 -0500
Re: What other languages use the same data model as Python? John Nagle <nagle@animats.com> - 2011-05-04 21:32 -0700
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-05 22:06 +1200
Re: What other languages use the same data model as Python? John Nagle <nagle@animats.com> - 2011-05-05 08:41 -0700
Re: What other languages use the same data model as Python? Ian Kelly <ian.g.kelly@gmail.com> - 2011-05-05 10:44 -0600
Re: What other languages use the same data model as Python? Chris Torek <nospam@torek.net> - 2011-05-06 17:57 +0000
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-07 21:39 +1200
Re: What other languages use the same data model as Python? Mel <mwilson@the-wire.com> - 2011-05-05 07:44 -0400
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-05 21:48 +1000
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 13:59 +0000
Re: What other languages use the same data model as Python? John Nagle <nagle@animats.com> - 2011-05-05 08:58 -0700
Re: What other languages use the same data model as Python? Neil Cerutti <neilc@norwich.edu> - 2011-05-05 13:19 +0000
Re: What other languages use the same data model as Python? Terry Reedy <tjreedy@udel.edu> - 2011-05-05 14:39 -0400
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 11:56 +0100
Re: What other languages use the same data model as Python? Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-05-04 06:13 -0700
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 14:33 -0500
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-04 20:19 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 16:35 -0500
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-04 21:57 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 20:11 -0500
Re: What other languages use the same data model as Python? Mark Hammond <mhammond@skippinet.com.au> - 2011-05-05 12:09 +1000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 23:01 -0500
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-05 22:19 +1200
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:17 +0000
Re: What other languages use the same data model as Python? Roy Smith <roy@panix.com> - 2011-05-05 10:31 -0400
Re: What other languages use the same data model as Python? Neil Cerutti <neilc@norwich.edu> - 2011-05-05 15:10 +0000
Re: What other languages use the same data model as Python? Roy Smith <roy@panix.com> - 2011-05-05 11:29 -0400
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-06 08:01 +1000
Re: What other languages use the same data model as Python? Neil Cerutti <neilc@norwich.edu> - 2011-05-06 13:10 +0000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 16:57 +0000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 16:56 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 11:58 -0500
Re: What other languages use the same data model as Python? Neil Cerutti <neilc@norwich.edu> - 2011-05-05 17:39 +0000
Re: What other languages use the same data model as Python? Ian Kelly <ian.g.kelly@gmail.com> - 2011-05-05 13:13 -0600
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 15:12 -0500
Re: What other languages use the same data model as Python? Tim Roberts <timr@probo.com> - 2011-05-04 20:23 -0700
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 23:55 -0500
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:21 +0000
Re: What other languages use the same data model as Python? Mel <mwilson@the-wire.com> - 2011-05-05 08:09 -0400
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-05 07:34 +0100
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 14:10 +0000
Re: What other languages use the same data model as Python? Mel <mwilson@the-wire.com> - 2011-05-05 11:30 -0400
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 10:56 -0500
RE: What other languages use the same data model as Python? Andreas Tawn <andreas.tawn@ubisoft.com> - 2011-05-05 18:27 +0200
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-07 22:09 +1200
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-06 07:56 +1000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:14 +0000
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 15:11 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 11:00 -0500
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 16:52 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 12:03 -0500
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-07 22:12 +1200
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-07 12:03 +0000
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 16:48 +0000
Re: What other languages use the same data model as Python? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-05 22:24 -0700
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 11:18 -0500
Re: What other languages use the same data model as Python? Ethan Furman <ethan@stoneleaf.us> - 2011-05-05 10:28 -0700
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 12:19 -0500
Re: What other languages use the same data model as Python? Chris Torek <nospam@torek.net> - 2011-05-06 18:17 +0000
Re: What other languages use the same data model as Python? Chris Torek <nospam@torek.net> - 2011-05-06 19:06 +0000
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-06 14:25 -0500
Re: What other languages use the same data model as Python? Chris Angelico <rosuav@gmail.com> - 2011-05-07 09:43 +1000
Re: What other languages use the same data model as Python? Ian Kelly <ian.g.kelly@gmail.com> - 2011-05-04 16:22 -0600
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-04 19:51 -0500
Re: What other languages use the same data model as Python? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-05 14:51 +0000
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-04 21:20 +0100
Re: What other languages use the same data model as Python? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-04 22:10 -0700
Re: What other languages use the same data model as Python? harrismh777 <harrismh777@charter.net> - 2011-05-05 00:19 -0500
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:25 +0000
Re: What other languages use the same data model as Python? sturlamolden <sturla@molden.no> - 2011-05-04 07:44 -0700
Re: What other languages use the same data model as Python? Michael Torrie <torriem@gmail.com> - 2011-05-04 09:40 -0600
Re: What other languages use the same data model as Python? sturlamolden <sturla@molden.no> - 2011-05-04 09:40 -0700
Re: What other languages use the same data model as Python? Benjamin Kaplan <benjamin.kaplan@case.edu> - 2011-05-04 13:15 -0400
Re: What other languages use the same data model as Python? sturlamolden <sturla@molden.no> - 2011-05-04 10:19 -0700
Re: What other languages use the same data model as Python? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-05 15:48 +1200
Re: What other languages use the same data model as Python? Hans Georg Schaathun <hg@schaathun.net> - 2011-05-05 05:58 +0100
Re: What other languages use the same data model as Python? Grant Edwards <invalid@invalid.invalid> - 2011-05-05 14:24 +0000
Re: What other languages use the same data model as Python? Hrvoje Niksic <hniksic@xemacs.org> - 2011-05-03 15:50 +0200
Re: What other languages use the same data model as Python? sturlamolden <sturla@molden.no> - 2011-05-04 07:28 -0700

csiph-web