urllib.request.urlopen

from utllib import request
resp = request.urlopen('http://www.baidu.com')
print(resp.read())

import ssl
from urllib import request
import json


if __name__ == '__main__':
    context = ssl._create_unverified_context()

    url = r'https://api.lab.wayougou.com/api/stocks/rank'

    response = request.urlopen(url, context=context)

    html = json.loads(response.read())

    print(type(html))
    print(html)

    print()
    [print(i) for i in html]

返回值: read(size), readline, readlines, getcode

下载页面urlretrieve

from urllib import request

request.urlretrieve('http://www.baidu.com/', './baidu.html')
request.urlretrieve('xxxx.img', './luban.jpg')

编码urlencode函数

from urllib import request
from urllib import parse

params = {'name': '哈哈', 'age': 18, 'greet':'hello world'}
result = parse.urlencode(params)
print(result)

用程序的方式请求百度搜索刘德华https://www.baidu.com/s?wd=刘德华—>https://www.baidu.com/s?wd=%E5%88%98%E5%BE%B7%E5%8D%8E
这个网址不能直接被urlopen打开, 因为urlopen只解析ascii

from urllib import request
from urllib import parse

url = 'https://www.baidu.com/s'
params = {'wd': '刘德华'}
qs = parse.urlencode(params)

url = url + '?' + qs
resp = request.urlopen(url)
print(resp.read())

parse_qs 解码

params = {'name': '哈哈', 'age': 18, 'greet':'hello world'}
qs = parse.urlencode(params)
print(qs)
result = parse.parse_qs(qs)
print(result)