On 16 June 2017 at 07:44, Barry Scott <[email protected]> wrote:
> But I need the result of __dir__ for my object not its base. Then I need to
> add in the list of member attributes that are missing because python
> itself has no knowledge of them they are accessed via getattr().
The C code:
dir_result = PyObject_CallMethod(base_type, "__dir__", "O", self);
is roughly equivalent to the Python code:
dir_result = BaseType.__dir__(self)
That is, it's calling the base type's __dir__ method, but it's still
using the subclass *instance*.
It's the same pattern people use to call a base type's __getattr__ or
__getattribute__ for the subclass implementation of those methods,
just without multiple inheritance support (since calling super() from
C is painful).
Cheers,
Nick.
--
Nick Coghlan | [email protected] | Brisbane, Australia
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