# Pastebin laD6pZqz
void updateSourceObject(PyObject *source)
{
    // TODO: Provide for actual upstream exception handling.
    //       For now we'll just return early to avoid further issues.

    if (source == nullptr)      // Bad input
       return;

    Shiboken::AutoDecRef mroIterator(PyObject_GetIter(source->ob_type->tp_mro));

    if (mroIterator.isNull())   // Not iterable
       return;

    Shiboken::AutoDecRef mroItem{};

    while ((mroItem.reset(PyIter_Next(mroIterator))), mroItem.object()) {
        Py_ssize_t pos = 0;
        PyObject *key, *value;
        auto *type = reinterpret_cast<PyTypeObject *>(mroItem.object());

        while (PyDict_Next(type->tp_dict, &pos, &key, &value)) {
            if (PyObject_TypeCheck(value, PySideSignalTypeF())) {
                auto *inst = PyObject_New(PySideSignalInstance, PySideSignalInstanceTypeF());
                Shiboken::AutoDecRef signalInstance(reinterpret_cast<PyObject *>(inst));
                instanceInitialize(signalInstance.cast<PySideSignalInstance *>(),
                                   key, reinterpret_cast<PySideSignal *>(value), source, 0);
                if (PyObject_SetAttr(source, key, signalInstance) == -1)
                    return;     // An error occurred while setting the attribute
            }
        }
    }

    if (PyErr_Occurred())       // An iteration error occurred
        return;
}