I've been working out of Core Python Programming (2nd Edition). Here is an
example demonstrating multiple inheritance.
>>> class A(object):
... pass
...
>>> class B(A):
... pass
...
>>> class C(B):
... pass
...
>>> class D(A, B):
... pass
...
Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: Error when calling the metaclass bases
Cannot create a consistent method resolution
order (MRO) for bases B, A
What does this error message mean? The example worked in the book. I checked
in the docs and could not find anything.
Thanks!
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