Set data source to Quandl

def set_source_quandl(self, quandl_token):
        """
        Set data source to Quandl
        """
        self.data_worker = data_worker
        self.worker_args = {"function": Quandl.get, "input": self.input_queue, "output": self.output_map,
                            "token": quandl_token}
        self.source_name = "Quandl"