Circular relationship: object - type

[Mohan Parthasarathy]

Hi,

I have read several articles and emails:

http://www.cafepy.com/article/python_types_and_objects/python_types_and_objects.html#relationships-transitivity-figure
http://mail.python.org/pipermail/python-list/2007-February/600128.html

 I understand how type serves to be the default metaclass when an object is
created and it also can be changed. I also read a few examples on why this
metaclass can be a powerful concept. What I fail to understand is the
circular relationship between object and type. Why does type have to be
subclassed from object ? Just to make "Everything is an object and all
objects are  inherited from object class".

Why can't just type be the class from which object class is instantiated ?
Why does it have to be a subclass of object also ?

Sorry if this has been answered before.

Thanks in advance,
mohan
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