1from cpython.ref cimport PyObject 2 3cdef extern from *: 4 ctypedef Py_ssize_t Py_intptr_t 5 6python_string = "foo" 7 8cdef void* ptr = <void*>python_string 9cdef Py_intptr_t adress_in_c = <Py_intptr_t>ptr 10address_from_void = adress_in_c # address_from_void is a python int 11 12cdef PyObject* ptr2 = <PyObject*>python_string 13cdef Py_intptr_t address_in_c2 = <Py_intptr_t>ptr2 14address_from_PyObject = address_in_c2 # address_from_PyObject is a python int 15 16assert address_from_void == address_from_PyObject == id(python_string) 17 18print(<object>ptr) # Prints "foo" 19print(<object>ptr2) # prints "foo" 20