[python] urlopen proxy

url = 'http://leopardan.kr'
proxies = {'http': 'http://111.222.333.444:3128'}
a = urllib.urlopen(url,proxies=proxies)

# Use http://www.someproxy.com:3128 for http proxying
proxies = {'http': 'http://www.someproxy.com:3128'}
filehandle = urllib.urlopen(some_url, proxies=proxies)
# Don't use any proxies
filehandle = urllib.urlopen(some_url, proxies={})
# Use proxies from environment - both versions are equivalent
filehandle = urllib.urlopen(some_url, proxies=None)
filehandle = urllib.urlopen(some_url)

출처 : http://docs.python.org/2/library/urllib.html