I am writing a simple Vector implementation as a Python extension module in C that looks mostly like this:

typedef struct {
    PyObject_HEAD
    double x;
    double y;
} Vector;

static PyTypeObject Vector_Type = {
    ...
};

It is very simple to create instances of Vector while calling from Python, but I need to create a Vector instance in the same extension module. I looked in the documentation but I couldn't find a clear answer. What's the best way to do this?