Function array_fromiter

numpy/core/src/multiarray/multiarraymodule.c:2472–2497

}

static PyObject *
array_fromiter(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds)
{
    PyObject *iter;
    Py_ssize_t nin = -1;
    static char *kwlist[] = {"iter", "dtype", "count", "like", NULL};
    PyObject *like = Py_None;
    PyArray_Descr *descr = NULL;

    if (!PyArg_ParseTupleAndKeywords(args, keywds,
                "OO&|" NPY_SSIZE_T_PYFMT "$O:fromiter", kwlist,
                &iter, PyArray_DescrConverter, &descr, &nin, &like)) {
        Py_XDECREF(descr);
        return NULL;
    }
    if (like != Py_None) {
        PyObject *deferred = array_implement_c_array_function_creation(
                "fromiter", like, args, keywds, NULL, 0, NULL);
        if (deferred != Py_NotImplemented) {
            Py_XDECREF(descr);
            return deferred;
        }
    }

    return PyArray_FromIter(iter, descr, (npy_intp)nin);
}

static PyObject *
array_frombuffer(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds)