Twitter private API wrapper class

TwitterBird,py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import requests, time
from lxml import etree

class TwitterHammer:
	def __init__(self, username, password):
		self.username = username
		self.password = password

		self.s = requests.Session()
		self.s.headers.update = { 'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:38.0) Gecko/20100101 Firefox/38.0' }

		self.login()

	def login(self):
		r = self.s.get( 'https://twitter.com/' )
		htmlObj = etree.HTML( r.text )
		autenticity_token = htmlObj.xpath('//*[@id="doc"]/div[1]/div/div/div/div/ul[1]/li/div[2]/form/input[3]/@value')[0]

		# make the login
		payload = {
        		'session[username_or_email]'    : self.username,
        		'session[password]'             : self.password,
        		'return_to_ssl'                 : 'true',
        		'scribe_log'                    : '',
        		'redirect_after_login'          : '/',
        		'authenticity_token'            : autenticity_token
		}

		r = self.s.post( 'https://twitter.com/sessions', data=payload )

	def __is_followed__(self, html_txt):
		htmlObj = etree.HTML(html_txt)
		classes = htmlObj.xpath('//div[contains(@class, "UserActions")]/div[contains(@class, "user-actions")]/@class')[0]
		if ' following' in classes:
			return True
		return False

	def follow_by_name(self, screen_name):
		url='https://twitter.com/%s' % screen_name
		r = self.s.get( url )

		# Ja segue este utilizador
		if self.__is_followed__(r.text):
			return 2

		htmlObj = etree.HTML( r.text )

		authenticity_code =  htmlObj.xpath( '//*[@id="authenticity_token"]/@value' )[0]
		user_id = htmlObj.xpath('//div[contains(@class, "ProfileNav")]/@data-user-id')[0]

		payload = {
			'authenticity_token' : authenticity_code,
			'challenges_passed' : 'false',
			'handles_challenges' : 1,
			'inject_tweet' : 'false',
			'user_id' : user_id
		}

		r = self.s.post( 'https://twitter.com/i/user/follow', data=payload )

		# Se ocorreu um erro devolve 0
		if r.status_code != 200:
			return 0

		return 1


	def statusUpdate(self, message):
		r = self.s.get( 'https://twitter.com' )
		htmlObj = etree.HTML( r.text )

		authenticity_code =  htmlObj.xpath( '//*[@id="authenticity_token"]/@value' )[0]

		payload = {
			'authenticity_token' : authenticity_code,
			'page_context' : 'profile',
			'place_id' : '',
			'status' : message,
			'tagged_users' : ''
		}

		try:
			r = self.s.post( 'https://twitter.com/i/tweet/create', data=payload )
		except:
			print "Erro e a enviar twittar"