爬虫requests模块

转载请注明出处 https://blog.youkuaiyun.com/weixin_45163516

# 需安装requests模块
import requests
# import webbrowser

#在百度上查找 "xiaoxiaozhang"
param = {"wd": "xiaoxiaozhang"}
r = requests.get('http://www.baidu.com/s', params=param)
#返回查找到的网页
print(r.url)
# webbrowser.open(r.url)

http://www.baidu.com/s?wd=xiaoxiaozhang

# post请求 模拟登录一个网页http://pythonscraping.com/pages/files/processing.php
# 返回 hello，there，xiaoxiao zhang
data = {'firstname': 'xiaoxiao', 'lastname': 'zhang'}
r = requests.post('http://pythonscraping.com/pages/files/processing.php', data=data)
print(r.text)

uploads/
Sorry, there was an error uploading your file.

这里是上传失败了

#登录之后再次模拟登录
payload = {'username': 'xiaoxiao', 'password': 'password'}
r = requests.post('http://pythonscraping.com/pages/cookies/welcome.php', data=payload)
print(r.cookies.get_dict())
r = requests.get('http://pythonscraping.com/pages/cookies/profile.php', cookies=r.cookies)
print(r.text)

{‘loggedin’: ‘1’, ‘username’: ‘xiaoxiao’} 登陆失败 返回登录之后的状态

可以使用该网站来测试http://pythonscraping.com/pages/cookies/welcome.php

学习自 莫烦python