super().__init__(*args, **kwargs) doesn't pass kwargs to parent C class.

[kwagyeman]

We have a class like this:

class Model(uml.Model):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

Its parent is a custom C class that implements make_new and accepts positional and keyword arguments.

When you pass just positional arguments to Model() in code using this subclass things work as expected. When you pass kwargs you get this error:

TypeError: function doesn't take keyword arguments

It appears MicroPython refuses to pass the kwargs to the parent class. Note that the error is not coming from code being executed in our make_new in C. It appears something else has rejected the kwargs being passed.

[kwagyeman]

Moved to github as bug. #15465