Hi
On python doc here:
https://docs.python.org/3.4/reference/datamodel.html
it is said about __prepare__ metaclass's method:
If the metaclass has a __prepare__ attribute, it is called as
namespace = metaclass.__prepare__(name, bases, **kwds)
where the additional keyword arguments, if any, come from
the class definition.
I don't understand what they call the "class definition".
So I took their example and add a print(kwds)
class OrderedClass(type):
@classmethod
def __prepare__(metacls, name, bases, **kwds):
print(kwds)
return collections.OrderedDict()
def __new__(cls, name, bases, namespace, **kwds):
result = type.__new__(cls, name, bases, dict(namespace))
result.members = tuple(namespace)
return result
class A(metaclass=OrderedClass):
def one(self): pass
def two(self): pass
def three(self): pass
def four(self): pass
but print(kwds) outputs an empty dictionnary {}
So what kwds is supposed to contains ?
Thx
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