python 3.3 下载固定链接文件并保存的方法

import urllib.request
print ("downloading with urllib")
url = 'http://www.wzsky.net/img2013/uploadimg/20130906/1216294.jpg' 
f = urllib.request.urlopen(url) 
data = f.read() 
with open("d:/color/1216294.jpg", "wb") as code: 
 code.write(data)

 unquote_plus; unquote_to_bytes; urldefrag; urlencode; urljoin; urlparse;
 urlsplit; urlunparse; urlunsplit

  CatheFTPHandler; FTPHandler; FancyURLopener; FileHandler;
  HTTPBasicAuthHandler; HTTPCookieProcessor; HTTPDefaultErrorHandler;
  HTTPDigestAuthHandler; HTTPErrorProcessorl; HTTPHandler;
  HTTPPasswordMgr; HTTPPasswordMgrWithDefaultRealm;
  HTTPRedirectHandler; HTTPSHandler;OpenerDirector;ProxyBasicAuthHandler
  ProxyDigestAuthHandler; ProxyHandler; Request; URLopener;
  UnknowHandler; build_opener; getproxies; install_opener; pathname2url;
  url2pathname; urlcleanup; urlopen; urlretrieve;