python爬虫笔记（三）requests模块深入—发送post请求

1. requests模块发送post请求

# -*- coding: utf-8 -*-
"""
Created on Sun Jan 19 01:26:05 2020

@author: douzi
"""

# -*- coding: utf-8 -*-

import requests
import json
import sys

query_str = sys.argv[1]

headers = {"User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36"}

data = {
        "query": query_str,
        "from": "zh",
        "to": "en"

}

post_url = "https://fanyi.baidu.com/basetrans"

r = requests.post(post_url, data=data, headers=headers)
print(r.content.decode())
dict_ret = json.loads(r.content.decode())
ret = dict_ret["trans"][0]["dst"]
print("result is : ", ret)

（ps:好像现在百度翻译手机版，sign也是js生成的，这里就当复习一下post了）