Duncan Booth wrote:
Mike Orr <[EMAIL PROTECTED]> wrote:
That's a misunderstanding of classes vs instances. If you have an
instance of MyClass(Superclass), there is one instance but several
classes. The instance is of MyClass; there is no instance of
Superclass. 'self' has a .__class__ attribute because it's an
instance, but MyClass and Superclass do not because they're already
classes.
Classes are also instances, usually they are instances of the type 'type'
(and even 'type' is an instance of itself):
Ok, I didn't know that
class SuperClass(object): pass
SuperClass.__class__
<type 'type'>
type(SuperClass)
<type 'type'>
type.__class__
<type 'type'>
Old style classes don't have a class attribute, but you shouldn't be using
old style classes anyway and so long as you use
type(x)
to access its class rather than accessing the __class__ attribute directly
that doesn't particularly matter.
Yes, I don't use old style classes
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