Python 中的 HTTP 请求和 JSON 解析

问题描述

我想通过 Google Directions API 动态查询 Google Maps.例如，此请求计算了从伊利诺伊州芝加哥到加利福尼亚州洛杉矶经过乔普林 (密苏里州) 和俄克拉荷马城 (OK) 的两个航点的路线:

I want to dynamically query Google Maps through the Google Directions API. As an example, this request calculates the route from Chicago, IL to Los Angeles, CA via two waypoints in Joplin, MO and Oklahoma City, OK:

http://maps.googleapis.com/maps/api/directions/json?origin=Chicago,IL&destination=Los+Angeles,CA&waypoints=Joplin,MO|Oklahoma+City,OK&sensor=false

它以 JSON 格式返回结果.

It returns a result in the JSON format.

我怎样才能在 Python 中做到这一点?我想发送这样一个请求，接收结果并解析它.

How can I do this in Python? I want to send such a request, receive the result and parse it.

推荐答案

我推荐使用很棒的 requests 库:

I recommend using the awesome requests library:

import requests

url = 'http://maps.googleapis.com/maps/api/directions/json'

params = dict(
    origin='Chicago,IL',
    destination='Los+Angeles,CA',
    waypoints='Joplin,MO|Oklahoma+City,OK',
    sensor='false'
)

resp = requests.get(url=url, params=params)
data = resp.json() # Check the JSON Response Content documentation below

JSON 响应内容:https://requests.readthedocs.io/en/master/user/quickstart/#json-response-content

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