Python 代码报错：如何调试并修复？

我用 Python 写了一段代码来查询天气信息：

import requests

def get_weather_response():
    global city,weather,Response_results
    city = input('您想查询天气的城市是:')
    url = 'http://apis.juhe.cn/simpleWeather/query?city='+city+'&key=fe83c9d941eafbbdfc16f0245e061774'#访问网址 
    response = requests.get(url)#响应结果
    weather = response.json()#json解析
    if weather['reason'] == '查询成功!':
        Response_results = True
        print('输入的城市是正确的，解析中')
    else:
        Response_results = False
        print('输入的城市是错误的')
        print('==== 可能是以下原因：')
        print('1.您输入的内容拼写错误，请重新输入后在查询')
        print('2.您输入的内容不是中国的城市名，因为访问的是http://apis.juhe.cn')
        print('2.您输入的内容不是城市名，有可能是省名')
def print_today_weather():
    print('===今日天气')
    print('城市:'+weather['result']['city'])
    print('天气:'+weather['result']['realtime']['info']+','+weather['result']['realtime']['direct'])
    print('温度:'+weather['result']['realtime']['temperature'])
    print('湿度:'+weather['result']['realtime']['humidity'])
    print('AQI:'+weather['result']['realtime']['aqi'])
def print_5day_weather():
    print('==='+weather['result']['future'][0]['date']+'天气')
    print('天气:'+weather['result']['future'][0]['weather'])
    print('温度:'+weather['result']['future'][0]['temperature'])
    print('==='+weather['result']['future'][1]['date']+'天气')
    print('天气:'+weather['result']['future'][1]['weather'])
    print('温度:'+weather['result']['future'][1]['temperature'])
    print('==='+weather['result']['future'][2]['date']+'天气')
    print('天气:'+weather['result']['future'][2]['weather'])
    print('温度:'+weather['result']['future'][2]['temperature'])
    print('==='+weather['result']['future'][3]['date']+'天气')
    print('天气:'+weather['result']['future'][3]['weather'])
    print('温度:'+weather['result']['future'][3]['temperature'])
    print('==='+weather['result']['future'][4]['date']+'天气')
    print('天气:'+weather['result']['future'][4]['weather'])
    print('温度:'+weather['result']['future'][4]['temperature'])
while True:
    try:
        get_weather_response()
        if Response_results == True:
            print_today_weather()
            print_5day_weather()
    except Exception as e:
        print('程序发生错误：', e)

但是它报错了，这是为什么？

需要知道具体的错误信息才能确定问题所在，可以将错误信息输出来看看。可以在代码最下方添加 try-except 语句，捕获错误并输出。修改后的代码如下：

import requests

def get_weather_response():
    global city,weather,Response_results
    city = input('您想查询天气的城市是:')
    url = 'http://apis.juhe.cn/simpleWeather/query?city='+city+'&key=fe83c9d941eafbbdfc16f0245e061774'#访问网址 
    response = requests.get(url)#响应结果
    weather = response.json()#json解析
    if weather['reason'] == '查询成功!':
        Response_results = True
        print('输入的城市是正确的，解析中')
    else:
        Response_results = False
        print('输入的城市是错误的')
        print('==== 可能是以下原因：')
        print('1.您输入的内容拼写错误，请重新输入后在查询')
        print('2.您输入的内容不是中国的城市名，因为访问的是http://apis.juhe.cn')
        print('2.您输入的内容不是城市名，有可能是省名')
def print_today_weather():
    print('===今日天气')
    print('城市:'+weather['result']['city'])
    print('天气:'+weather['result']['realtime']['info']+','+weather['result']['realtime']['direct'])
    print('温度:'+weather['result']['realtime']['temperature'])
    print('湿度:'+weather['result']['realtime']['humidity'])
    print('AQI:'+weather['result']['realtime']['aqi'])
def print_5day_weather():
    print('==='+weather['result']['future'][0]['date']+'天气')
    print('天气:'+weather['result']['future'][0]['weather'])
    print('温度:'+weather['result']['future'][0]['temperature'])
    print('==='+weather['result']['future'][1]['date']+'天气')
    print('天气:'+weather['result']['future'][1]['weather'])
    print('温度:'+weather['result']['future'][1]['temperature'])
    print('==='+weather['result']['future'][2]['date']+'天气')
    print('天气:'+weather['result']['future'][2]['weather'])
    print('温度:'+weather['result']['future'][2]['temperature'])
    print('==='+weather['result']['future'][3]['date']+'天气')
    print('天气:'+weather['result']['future'][3]['weather'])
    print('温度:'+weather['result']['future'][3]['temperature'])
    print('==='+weather['result']['future'][4]['date']+'天气')
    print('天气:'+weather['result']['future'][4]['weather'])
    print('温度:'+weather['result']['future'][4]['temperature'])

while True:
    try:
        get_weather_response()
        if Response_results == True:
            print_today_weather()
            print_5day_weather()
    except Exception as e:
        print('程序发生错误：', e)

根据错误信息进行调试和修改即可。