Question

我正在使用flask部署我的chatbot深度学习模型。当我在python控制台上本地运行时，该模型将运行良好。但是，当我尝试使用Flask进行部署时，出现此异常：

Traceback (most recent call last):   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 2309, in __call__
    return self.wsgi_app(environ, start_response)   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 2295, in wsgi_app
    response = self.handle_exception(e)   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 1741, in handle_exception
    reraise(exc_type, exc_value, tb)   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\_compat.py", line 35, in reraise
    raise value   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\_compat.py", line 35, in reraise
    raise value   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()   File "C:\Users\tab\AppData\Local\Programs\Python\Python35\lib\site-packages\flask\app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)   File "C:\Chatbot-Flask-Server-master\Chatbot-Flask-Server-master\app-.py", line 60, in prediction
    response =  pred(str(request.json['message'])) TypeError: 'NoneType' object is not subscriptable

这是我的代码：

# webapp
app = Flask(__name__, template_folder='./')


@app.route('/prediction', methods=['POST', 'GET'])
def prediction():
    response =  pred(str(request.json['message']))
    return jsonify(response)

@app.route('/')
def main():
    return render_template('index.html')


if __name__ == '__main__':
    app.run(debug=True)

Answer 1

尝试一下，看看该打印语句是否打印出任何内容。

import json


app = Flask(__name__, template_folder='./')


@app.route('/prediction', methods=['POST', 'GET'])
def prediction():
    text = str(request.data)
    print(request.data) #To check what you are sending
    text = json.loads(text)
    response =  pred(str(text['message']))
    return jsonify(response)

@app.route('/')
def main():
    return render_template('index.html')


if __name__ == '__main__':
    app.run(debug=True)

Python烧瓶：TypeError：“ NoneType”对象不可下标

1 个答案: