Question

用python编写的获取天气预报的代码总是有错误，求解

import requests
ApiUrl=\
"http://www.weather.com.cn/adat/cityinfo/101010100.html"
r=requests.get(ApiUrl)
weatherinfo=r.json
print (weatherinfo["ptime"]["temp2"])
在python3.0显示
Traceback (most recent call last):
File "/home/pi/Desktop/5.py", line 6, in <module>
print (weatherinfo["ptime"]["temp2"])
TypeError: 'method' object is not subscriptable
而在python2.0显示
Traceback (most recent call last):
File "/home/pi/Desktop/7.py", line 6, in <module>
print weatherinfo["ptime"]["temp2"]
TypeError: 'instancemethod' object has no attribute '__getitem__'

求解，本人没有学过python只学过c，c＋＋。。

Answer 1

weatherinfo=r.json() #在json后面加上括号才能返回结果。否则只能返回函数地址。

以下python3通过：

import requests
ApiUrl="http://www.weather.com.cn/adat/cityinfo/101010100.html"
r=requests.get(ApiUrl)
weatherinfo=r.json()
print (weatherinfo["weatherinfo"]["ptime"])
print (weatherinfo["weatherinfo"]["temp2"])

>>>08:00

>>>5℃