requests使用代理ip的方法

import requests
proxies = {
	"http" : "http://111.155.124.78:8123" # 代理ip
}

headers = {
	"User_Agent" : "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
	"Referer" : "http://www.xicidaili.com/nn/1"
}

http_url = "http://www.xicidaili.com/nn/1"
res = requests.get(url = http_url, headers = headers, proxies = proxies, timeout = 30)
if res.status_code == 200:
	print u"访问网页成功"
else:
	print u"代理ip错误"