from urllib import request, parse
import re
import http.cookiejar
cookie = http.cookiejar.CookieJar()
request.install_opener(request.build_opener(request.HTTPCookieProcessor(cookie)))
headers = {'User-Agent' : 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0'}
req0 = request.Request('http://vk.com/', None, headers)
response = request.urlopen(req0)
ip_h = re.findall(r'value="[a-z 0-9]{18}"', response.read().decode('cp1251'))[0]
params = parse.urlencode({'act' : 'login',
                          'role' : 'al_frame',
                          'expire' : '',
                          'captcha_sid' : '',
                          'captcha_key' : '',
                          '_origin' : 'http://vk.com/',
                          'ip_h' : ip_h,
                          'email': 'логин',
                          'pass': 'пароль'                          
                          })
bin_params = params.encode('ascii')
req = request.Request('http://vk.com/', bin_params, headers)
f = request.urlopen(req)
text = f.read().decode('cp1251')
print(text)

<noscript><meta http-equiv="refresh" content="0; URL=/badbrowser.php"></noscript>

import easy_install
easy_install requests
SyntaxError: invalid syntax