Amaury Forgeot d'Arc <[email protected]> added the comment:
What also worries me is the difference between the "class" statement and the
type() function.
class M_A(type):
def __new__(mcls, name, bases, ns):
print('M_A.__new__', mcls, name, bases)
return super().__new__(mcls, name, bases, ns)
class M_B(M_A):
def __new__(mcls, name, bases, ns):
print('M_B.__new__', mcls, name, bases)
return super().__new__(mcls, name, bases, ns)
class A(metaclass=M_A): pass
class B(metaclass=M_B): pass
class C(A, B): pass
D = type('D', (A, B), {})
The construction of C and D won't print the same messages.
----------
nosy: +amaury.forgeotdarc
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Python tracker <[email protected]>
<http://bugs.python.org/issue1294232>
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