Function get_cached_module

include/pybind11/pybind11.h:1506–1516

Return a borrowed reference to the named module if it has been successfully initialized within this interpreter before. nullptr if it has not been successfully initialized. */

interpreter before. nullptr if it has not been successfully initialized.
*/
inline PyObject *get_cached_module(pybind11::str const &nameobj) {
    dict state = detail::get_python_state_dict();
    if (!state.contains("__pybind11_module_cache")) {
        return nullptr;
    }
    dict cache = state["__pybind11_module_cache"];
    if (!cache.contains(nameobj)) {
        return nullptr;
    }
    return cache[nameobj].ptr();
}

/*
Add successfully initialized a module object to the internal cache.