I have a Base and a Derived class in C++ for which I create Python-bindings with pybind11. The base class implements a function (__repr__) in which I want to access the runtime type name of self. However, the way I do it, it just provides me the base type:

class Base {};

class Derived : public Base {};

PYBIND11_MODULE(mwe, m) {
    py::class_<Base>(m, "Base")
        .def("__repr__", [](const Base& self) {
            // want to see the runtime type (i.e. most derived)
            // of the `self` object!
            return py::type::of(py::cast(self)).attr("__name__");
        });
    py::class_<Derived, Base>(m, "Derived")
        .def(py::init<>());
}

In Python:

from mwe import Base, Derived

print(Derived())  # returns "Base", not "Derived"

How would I access the runtime type of self instead?