使用urllib

proxies = {'http': 'http://host:port'}
resp = urllib.urlopen(url, proxies=proxies)
content = resp.read()

使用urllib2

import urllib2enable_proxy = True
proxy_handler = urllib2.ProxyHandler({"http" : 'your_proxy'})
null_proxy_handler = urllib2.ProxyHandler({})if enable_proxy:opener = urllib2.build_opener(proxy_handler)
else:opener = urllib2.build_opener(null_proxy_handler)urllib2.install_opener(opener)

使用requests

import requests
r = requests.get("http://www.google.com", proxies={"http": "your_proxy"})
print r.text

使用selenium

from selenium import webdriver
driver = webdriver.Chrome()
driver.get(url)
html_resource = driver.page_source