[Python-Dev] Grammar change in classdef

Nick Coghlan ncoghlan at gmail.com
Sun Sep 17 11:00:13 CEST 2006

Talin wrote:
> Nick Coghlan wrote:
>> As for the reason: it makes it possible to use the same style for classes 
>> without bases as is used for functions without arguments. Prior to this 
>> change, there was a sharp break in the class syntax, such that if you got rid 
>> of the last base class you had to get rid of the parentheses as well.
> Is the result a new-style or classic-style class? It would be nice if 
> using the empty parens forced a new-style class...

This was considered & rejected by Guido as too subtle a distinction. So you 
still need to set __metaclass__=type (or inherit from such a class) to get a 
new-style class.


Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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