extending: new type instance

[BranoZ]

I'm writing my own (list-like) type in C. It is implementing
a Sequence Protocol. In 'sq_slice' method I would like to return
a new instance of my class/type.

How do I create (and initialize) an instance of a given
PyTypeObject MyType ?

I have tried to provide (PyObject *)&MyType as 'class' argument to:

PyInstance_New(PyObject *class, PyObject *arg, PyObject *kw)

It failed the PyClass_Check.

I have also found a couple of PyObject_New functions which accept
PyTypeObject as an argument. They look very low-level and obviously
don't call __init__. Should I do it myself manualy ?

BranoZ