mortymacs / abcmeta Goto Github PK

errors = []
for name, obj in vars(cls.__base__).items():
    ...
    if name not in cls.__dict__:
        errors.append(
            "Derived class '{}' has not implemented '{}' method of the"
            " parent class '{}'.".format(
                cls.__name__, name, cls.__base__.__name__
            )
        )
        continue
    ...
if errors:
    raise AttributeError("\n\n".join(errors))