homepage

In Python 3 the following code prints "False" because the use of super() has caused the __class__ descriptor to be omitted from the class namespace. Remove the use of super and it prints "True".
class X(object):
 
 def __init__(self):
 super().__init__()
 
 @property
 def __class__(self):
 return int
 
print (isinstance(X(), int))