Re: Function defaults

Date	2011-04-24 14:54 -0700
From	Ken Seehart <ken@seehart.com>
Subject	Re: Function __defaults__
References	<4db3f444$0$29978$c3e8da3$5496439d@news.astraweb.com> <BANLkTi=hLzcxEGMtsZiSVGdN4bi4A4DCLw@mail.gmail.com> <4DB49473.4000204@seehart.com> <BANLkTimaaWQxb1FmDuY4mJe2CDfnB4+5ZQ@mail.gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.805.1303682074.9059.python-list@python.org> (permalink)

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Gotta love that email latency. :-D
Ken

On 4/24/2011 2:47 PM, Daniel Kluev wrote:
> On Mon, Apr 25, 2011 at 8:21 AM, Ken Seehart<ken@seehart.com>  wrote:
>> Good point, Benjamin.  I didn't think of testing on Jython before
>> answering.  For practical purposes it's a really good idea to test obscure
>> features against all potential target platforms.
>>
>> In this case, I would argue that Benjamin's test demonstrates a bug in
>> Jython.
> It doesn't. __defaults__ was added in 3.x (and it is documented).
> Prior to that, in 2.x, there was func_defaults.
>
> Jython is not in 3.x yet, so you should not expect 3.x features there.
> As for func_defaults, its there and supported as documented:
>
> Jython 2.5.1+ (Release_2_5_1:exported, Mar 21 2010, 01:00:17)
> [Java HotSpot(TM) Server VM (Sun Microsystems Inc.)] on java1.6.0_22
> Type "help", "copyright", "credits" or "license" for more information.
>>>> def test(a=123):
> ...     return a
> ...
>>>> test()
> 123
>>>> test.func_defaults
> (123,)
>>>> test.func_defaults = (456,)
>>>> test()
> 456
>

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Function __defaults__ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-04-24 09:58 +0000
  Re: Function __defaults__ Terry Reedy <tjreedy@udel.edu> - 2011-04-24 12:48 -0400
  Re: Function __defaults__ Benjamin Kaplan <benjamin.kaplan@case.edu> - 2011-04-24 13:02 -0400
  Re: Function __defaults__ Daniel Kluev <dan.kluev@gmail.com> - 2011-04-25 04:18 +1100
  Re: Function __defaults__ Ken Seehart <ken@seehart.com> - 2011-04-24 10:07 -0700
    Re: Function __defaults__ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-04-25 02:00 +0000
  Re: Function __defaults__ Ken Seehart <ken@seehart.com> - 2011-04-24 14:44 -0700
  Re: Function __defaults__ Daniel Kluev <dan.kluev@gmail.com> - 2011-04-25 08:47 +1100
  Re: Function __defaults__ Terry Reedy <tjreedy@udel.edu> - 2011-04-24 17:53 -0400
  Re: Function __defaults__ Ken Seehart <ken@seehart.com> - 2011-04-24 14:54 -0700
  Re: Function __defaults__ "Colin J. Williams" <cjw@ncf.ca> - 2011-04-25 07:59 -0400
  Re: Function __defaults__ Ken Seehart <ken@seehart.com> - 2011-04-25 05:30 -0700
  Re: Function __defaults__ "Colin J. Williams" <cjw@ncf.ca> - 2011-04-25 10:24 -0400

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