very simple script that can login facebook.

facebookLoginTest.py

import cookielib, urllib2, time
from pyquery import PyQuery as pq

email="mail@mail.com"
pwd="yeasure :D"

cj = cookielib.CookieJar()
go = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))

d= pq(go.open("http://www.facebook.com/").read())

lsd = d("input").filter(lambda i, this: pq(this).attr("name") == 'lsd').attr("value")
lgnrnd= d("input").filter(lambda i, this: pq(this).attr("name") == 'lgnrnd').attr("value")

data= ""

#bot protectors
data+= "lsd=%s&" % lsd
data+= "lgnrnd=%s&" % lgnrnd
data+= "lgnjs=%s&" % time.time()

#login req
data+= "email=%s&" % email
data+= "pass=%s&" % pwd


h=go.open("https://www.facebook.com/login.php", data).read()
open("out.html", "w+").write(h)