2、自定义HttpHandler 发送请求

from urllib import request
url = "http://www.jinri.com"
# 自定义handler
handler = request.HTTPHandler()
headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"
}
req = request.Request(url,headers = headers)
# 生成opener
opener = request.build_opener(handler)
# 调用open方法发送请求
response = opener.open(req)
print(response.read().decode('utf-8'))