>>> # Using Python 2
...
>>> class old_style(): # doesn't inherit from object
... pass
...
>>> class new_style(object): # does inherit from object
... pass
...
>>> old_object = old_style()
>>> new_object = new_style()
>>> type(old_object) == old_object.__class__
False
>>> type(new_object) == new_object.__class__
True
For the inquisitive, new-style classes unified the concept of
class
and type
in Python 2.2. For a complete description, check out Guido's essay on the topic, circa 2002.Merry Guido-mas, and may you only find new-style classes under your AST.
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