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| Date | Wed, 12 Nov 2014 13:21:42 +1100 |
| Subject | Re: I love assert |
| From | Chris Angelico <rosuav@gmail.com> |
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On Wed, Nov 12, 2014 at 7:03 AM, Ben Finney <ben+python@benfinney.id.au> wrote:
> An ‘assert’ statement in the code will sometimes be active, and
> sometimes be a no-op, for *exactly* the same code under different
> circumstances. That's a trap for the reader, and I'd rather not set it.
This is no worse than other forms of preprocessor magic. I've seen
this kind of thing in plenty of C projects:
#ifdef DEBUG_MODE
#define DEBUG print
#else
#define DEBUG(...)
#endif
... further down ...
DEBUG("We're here: %d:%d", foo, bar);
If you're not in debug mode, this won't be evaluated. You can have
"active code" inside its args if you want to, but only if it's
exclusively part of the debugging output:
DEBUG("We've hit this line %d times", ++hitcount);
Again, not materially different from assert, and plenty of projects
have this. Maybe people just need to understand "assert == DEBUG" and
all's clear?
ChrisA
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I love assert Peter Cacioppi <peter.cacioppi@gmail.com> - 2014-11-11 11:40 -0800
Re: I love assert Ben Finney <ben+python@benfinney.id.au> - 2014-11-12 07:03 +1100
Re: I love assert Grant Edwards <invalid@invalid.invalid> - 2014-11-11 21:43 +0000
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-11 12:08 -0800
Re: I love assert Rob Gaddi <rgaddi@technologyhighland.invalid> - 2014-11-11 12:20 -0800
Re: I love assert Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-11-11 20:34 +0000
Re: I love assert TP <wingusr@gmail.com> - 2014-11-11 12:57 -0800
Re: I love assert Terry Reedy <tjreedy@udel.edu> - 2014-11-11 17:34 -0500
Re: I love assert Ben Finney <ben+python@benfinney.id.au> - 2014-11-12 09:52 +1100
Re: I love assert Tim Chase <python.list@tim.thechases.com> - 2014-11-11 17:03 -0600
Re: I love assert Peter Cacioppi <peter.cacioppi@gmail.com> - 2014-11-11 15:02 -0800
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-11 15:38 -0800
Re: I love assert Dan Stromberg <drsalists@gmail.com> - 2014-11-11 17:56 -0800
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-12 13:21 +1100
Re: I love assert Ben Finney <ben+python@benfinney.id.au> - 2014-11-12 13:35 +1100
Re: I love assert Grant Edwards <invalid@invalid.invalid> - 2014-11-12 14:10 +0000
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-12 13:44 +1100
Re: I love assert wxjmfauth@gmail.com - 2014-11-11 23:14 -0800
Re: I love assert Terry Reedy <tjreedy@udel.edu> - 2014-11-12 03:29 -0500
Re: I love assert Anton <anton.schattenfeld@gmail.com> - 2014-11-12 12:53 -0800
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-12 23:41 +0200
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-12 13:52 -0800
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-12 23:56 +0200
Re: I love assert Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-12 15:04 -0700
Re: I love assert Anton <anschatten@gmail.com> - 2014-11-12 14:13 -0800
Re: I love assert Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-12 15:41 -0700
Re: I love assert Anton <anschatten@gmail.com> - 2014-11-12 14:48 -0800
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-13 01:01 +0200
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-15 10:40 +1100
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-15 02:12 +0200
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-15 12:04 +1100
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-15 03:30 +0200
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-15 12:48 +1100
Re: I love assert Tim Chase <python.list@tim.thechases.com> - 2014-11-14 20:14 -0600
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-15 13:16 +1100
Re: I love assert albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-29 17:35 +0000
Re: I love assert Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-12 16:02 -0700
Re: I love assert Anton <anschatten@gmail.com> - 2014-11-12 15:43 -0800
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-13 10:10 +1100
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-13 01:23 +0200
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-13 10:27 +1100
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-13 01:31 +0200
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-12 14:47 -0800
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-14 22:37 +1100
Re: I love assert Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-14 09:40 -0700
Re: I love assert Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-12 15:07 -0700
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-13 00:47 +0200
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-12 14:56 -0800
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-13 09:58 +1100
Re: I love assert Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-12 16:05 -0700
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-13 01:12 +0200
Re: I love assert Lie Ryan <lie.1296@gmail.com> - 2014-11-14 01:09 +1100
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-14 22:33 +1100
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-14 10:18 -0800
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-14 21:12 +0200
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-14 12:41 -0800
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-14 22:50 +0200
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-15 13:58 +1100
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-14 20:09 -0800
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-17 13:09 +1100
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-16 19:25 -0800
Re: I love assert Anton <anschatten@gmail.com> - 2014-11-12 14:00 -0800
Re: I love assert Anton <anschatten@gmail.com> - 2014-11-12 14:04 -0800
Re: I love assert Marko Rauhamaa <marko@pacujo.net> - 2014-11-13 00:34 +0200
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-13 09:43 +1100
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-14 22:15 +1100
Re: I love assert Richard Riehle <rriehle@itu.edu> - 2014-11-14 14:09 -0800
Decorators (was: Re: I love assert) Marko Rauhamaa <marko@pacujo.net> - 2014-11-15 00:18 +0200
Re: Decorators Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-11-14 22:37 +0000
Re: Decorators Marko Rauhamaa <marko@pacujo.net> - 2014-11-15 00:47 +0200
Re: Decorators (was: Re: I love assert) Richard Riehle <rriehle@itu.edu> - 2014-11-14 18:19 -0800
Re: Decorators (was: Re: I love assert) Mayank Tripathi <oquanox@gmail.com> - 2014-11-15 02:36 +0000
Re: Decorators (was: Re: I love assert) Tim Chase <python.list@tim.thechases.com> - 2014-11-14 20:30 -0600
Re: Decorators Marko Rauhamaa <marko@pacujo.net> - 2014-11-15 09:00 +0200
Re: Decorators Grant Edwards <invalid@invalid.invalid> - 2014-11-15 15:32 +0000
Re: Decorators (was: Re: I love assert) Richard Riehle <rriehle@itu.edu> - 2014-11-14 23:42 -0800
Re: Decorators Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-11-15 13:12 +0000
Re: Decorators Marko Rauhamaa <marko@pacujo.net> - 2014-11-15 15:24 +0200
Re: Decorators Terry Reedy <tjreedy@udel.edu> - 2014-11-15 15:28 -0500
Re: Decorators (was: Re: I love assert) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-16 02:39 +1100
Re: I love assert TP <wingusr@gmail.com> - 2014-11-27 01:22 -0800
Re: I love assert alister <alister.nospam.ware@ntlworld.com> - 2014-11-27 09:59 +0000
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-29 12:30 +1100
Re: I love assert MRAB <python@mrabarnett.plus.com> - 2014-11-29 02:56 +0000
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-29 20:31 +1100
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-29 21:40 +1100
Re: I love assert MRAB <python@mrabarnett.plus.com> - 2014-11-29 19:49 +0000
Re: I love assert Chris Angelico <rosuav@gmail.com> - 2014-11-29 14:02 +1100
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-29 14:33 -0800
Re: I love assert Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-30 19:18 +1100
Re: I love assert Ethan Furman <ethan@stoneleaf.us> - 2014-11-30 11:34 -0800
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