问在后台执行python脚本，同时返回对话框响应(Python )

EN

app = Flask(__name__)
av=""
time=""
action=""

def again():
    ...

@app.route('/')
def index():
    return 'Hello World!'

def results():
    global action
    req = request.get_json(force=True)
    action = req.get('queryResult').get('action')
    if(action=="get_address"):
        global av
        global time
        av=req.get('queryResult').get('parameters').get('location').get('city')
        threade=threading.Thread(target=again())
        threade.start()

        textv="Thanks! Please enter your name now."
        return {'fulfillmentText': textv}
    else:
        textv="Time: " + time
        return {'fulfillmentText': textv}


# create a route for webhook
@app.route('/webhook', methods=['GET', 'POST'])
def webhook():
    # return response
    return make_response(jsonify(results()))

# run the app
if __name__ == '__main__':
   app.run()