def send(self, function, args=(), on_return=None):
obj = {
'method':function,
'args': args,
}
if on_return is not None:
cb_key = obj['respond_to'] = self._next_cb
self._next_cb += 1
self._callbacks[cb_key] = on_return
self.do_send("PYTHON._recv('%s');" % (escape(json.write(obj)),))
def _respond_to(self, callback_id, value):
json_val = json.write(value)
self.do_send("PYTHON._recv_cb(%s, '%s');" % (callback_id, escape(json_val)))
