import requests

s = requests.Session()
post_url = 'https://www.facebook.com/login.php?login_attempt=1&lwv=110'

headers = {"User-agent" : 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:7.0.1) Gecko/20100101 Firefox/7.0.1'}
login_data = {'email': 'USERNAME', 'pass': 'PASSWORD'}
pag_formulario = s.post(formulario_url, headers=headers, data=login_data)

import mechanize

url = 'https://m.facebook.com'
loggedin_title = 'Facebook' # isto vai servir para confirmarmos que estamos loggedin, vendo o titulo da pagina para onde fomos redirecionados
username = 'USERNAME'
password = 'PASSWORD'

browser = mechanize.Browser()
browser.set_handle_robots(False)
browser.addheaders = [('User-Agent', 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.6)')]

browser.open(url)
browser.select_form(nr=0)
browser.form["email"] = username
browser.form["pass"] = password
browser.submit()

if browser.title() == loggedin_title:
    print '[+] SUCCESS'
    print 'Username: {}nPassword: {}'.format(username, password)
else:
    print '[-] LOGIN FAILED'

import robobrowser
import re

url = 'https://m.facebook.com'
loggedin_title = 'Facebook' # isto vai servir para confirmarmos que estamos loggedin, vendo o titulo da pagina para onde fomos redirecionados

browser = robobrowser.RoboBrowser(history=True, parser='html.parser')
browser.open(url)

form = browser.get_form(id='login_form')
form['email'].value = 'USERNAME'
form['pass'].value = 'PASSWORD'
browser.submit_form(form, submit=form['login'])

redirect_title = re.compile('<title>(.*?)</title>').search(str(browser.parsed)).group(1)

if(redirect_title == loggedin_title):
    print('[+] SUCCESS')
    print('Username: {}nPassword: {}'.format(form['email'].value, form['pass'].value))
else:
    print('[-] LOGIN FAILED')