def is_w(self, space, other):
if self.w_instance is not None:
return W_Root.is_w(self, space, other)
# The following special-case is only for *unbound* method objects.
# Motivation: in CPython, it seems that no strange internal type
# exists where the equivalent of ``x.method is x.method`` would
# return True. This is unlike unbound methods, where e.g.
# ``list.append is list.append`` returns True. The following code
# is here to emulate that behaviour. Unlike CPython, we return
# True for all equal unbound methods, not just for built-in types.
if not isinstance(other, Method):
return False
return (other.w_instance is None
and self.w_function is other.w_function
and self.w_class is other.w_class)
