Why new Python 2.5 feature "class C()" return old-style class ?

[Aahz]

In article <mailman.4386.1144773906.27775.python-list at python.org>,
Felipe Almeida Lessa  <felipe.lessa at gmail.com> wrote:
>Em Ter, 2006-04-11 Ã s 07:17 -0700, Aahz escreveu:
>>
>> Can, yes.  But should it?  The whole point of adding the () option to
>> classes was to ease the learning process for newbies who don't
>> understand why classes have a different syntax from functions.  Having
>> 
>> class C(): pass
>> 
>> behave differently from
>> 
>> class C: pass
>> 
>> would be of no benefit for that purpose.
>
>Why should a newbie use an old-style class?

Because that's the default.  Because lots of existing code still uses
classic classes, so you need to learn them anyway.  Because you can't use
new-style classes in code intended for 2.1 or earlier; because of the
changes made in 2.3, I don't particularly recommend new-style classes for
2.2.  Because even the second edition of _Learning Python_ (targeted at
Python 2.3) doesn't cover new-style classes much, so I'm certainly not
alone in believing that new-style classes are better avoided for newbies.
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

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