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

[Peter Hansen]

looping wrote:
> But I think that if we make "class C():" a synonym of "class
> C(object):", it will save lot of keystrokes ;-)

Saving keystrokes has only rarely influenced Python's design, 
thankfully.  If you read "import this", you'll see "explicit is better 
than implicit", and interpreting in this case one would have to say that 
  so long as both old and new-style classes exist, making "class():" 
equivalent to "class(object):" would be doing something very implicit, 
and potentially very confusing.  Leaving things just as they are would 
be a better choice.

-Peter