import urllib
import urllib2
url = 'www.abc.com'
form = {"name": '1234', "password": '4321'}
data = urllib.urlencode(form)  # 将字典以url形式编码
header = {'User-Agent': 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)',  # 浏览器头
          'Referer': 'http://www.abc.com'  # 反盗链
          }
request = urllib2.Request(url, data, header)
response = urllib2.urlopen(request)
print response.read()