为什么我会得到这个？ “NameError：名称'响应'未定义”

Question

I'm trying to get data from another of my servers. The other server is just an html file with "Hello World" I can reach my homepage fine, but when I go to /farmdata , I get this error:

NameError: name 'Response' is not defined"

from flask import Flask, render_template
import requests


app = Flask(__name__)

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

@app.route('/farmdata')
def farmdata():
    r = requests.get('http://74.114.75.91:8080')
    r.url
    r.encoding
    return Response(
        r.text,
        status=r.status_code,
        content_type=r.headers['content-type'],
    )

if __name__== '__main__':
    app.run(debug=True, port=80, host='0.0.0.0')

Edit - to anyone else with the problem, this was the solution.

from flask import Flask, render_template, Response

Answer 1

You have never defined Response . If you want to use flask.Response , you either have to import flask and then access it via flask.Response , or from flask import Response and then simply use Response .

In your code, you import Flask from the flask module, and that's where you get Flask from. If you remove the from flask import Flask line, you'll get a NameError complaining about Flask not being defined as well.

In Python, a name is defined if:

• you defined it via variable assignment [or with a def or a class statement, which is pretty much the same] (like app in your example)
• you imported it from another module explicitly (like Flask )
• it's defined on startup (like list )

Answer 2

Is there not a "," too much before closing the brackets of the response?