Publish to a Facebook group with requests / Python without the API

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

import argparse
import datetime
import json
import logging
import re
import random
import requests
import shutil
from pyquery import PyQuery as pq


def main(username, password, page, imgurURL):

    logging.basicConfig(filename='imgur2fb.log', level=logging.DEBUG)

    session = requests.session()

    uid, dtsg = login(session, username, password)

    grupoID = "580864492030176" #(Fijo)

    postToFacebook(session, dtsg, grupoID, "Prueba 55",uid)


def login(session, username, password):

    '''
    Login to Facebook
    '''

    # Navigate to the Facebook homepage
    response = session.get('https://facebook.com')

    # Construct the DOM
    dom = pq(response.text)

    # Get the lsd value from the HTML. This is required to make the login request
    lsd = dom('[name="lsd"]').val()

    # Perform the login request
    response = session.post('https://www.facebook.com/login.php?login_attempt=1', data={
        'lsd': lsd,
        'email': username,
        'pass': password,
        'default_persistent': '0',
        'timezone': '-60',
        'lgndim': '',
        'lgnrnd': '',
        'lgnjs': '',
        'locale':'en_GB',
        'qsstamp': ''
    })

    '''
    Get the users ID and fb_dtsg token. The fb_dtsg token is required when making requests as a logged in user. It
    never changes, so we only need to grab this token once.

    If the login was successful a cookie 'c_user' is set by Facebook. If the login failed, the 'c_user' cookie
    will not be present. This will raise an exception.
    '''
    try:
        uid = session.cookies['c_user']
        dtsg = re.search(r'(type="hidden" name="fb_dtsg" value="([0-9a-zA-Z-_:]+)")', response.text).group(1)

        dtsg = dtsg[dtsg.find("value")+6:]
        dtsg = dtsg[1:-1]

    except KeyError:
        raise Exception('Login Failed!')

    return uid, dtsg


def postToFacebook(session, dtsg, pageID, message,uID):

    data = {        #'composertags_place_name': '',

          '__a':'1',
          '__af':'iw',
          '__be':'-1',
          '__dyn':'',
          '__pc':'EXP3:DEFAULT',
          '__req':'',
          '__rev':'',
          '__user':uID,

        'album_id':'',  
        'attachment':'',    
        'audience':'',
        'backdated_date[year]':'',
        'backdated_date[month]':'',
        'backdated_date[day]': '',
        'backdated_date[hour]':'',  
        'backdated_date[minute]':'',      
        'boosted_post_config':'',   
        'composer_entry_time':'', #Tenia un valor
        'composer_session_duration':'', # Tenia un valor
        'composer_session_id':'',
        'composer_source_surface':'group',
        'composertags_city':'',
        'composertags_place':'',
        'direct_share_status':'0',
        'fb_dtsg': dtsg,    
        'feed_topics':'',
        'future_date':'',    
        'future_time':'',   
        'is_explicit_place': 'false',
        'is_forced_reshare_of_post':'',
        'is_markdown':'false',
        'is_profile_badge_post':'false',
        'is_q_and_a':'false',
        'is_react': 'true',
        'logging':'', # Tenia un valor
        'multilingual_specified_lang':'',
        'num_keystrokes':'', # Tenia un valor
        'num_pastes':'0',
        'post_surfaces_blacklist':'',
        'privacyx':'',
        'prompt_id':'',
        'prompt_tracking_string':'',
        'ref':'group',
        'scheduled': 'false',
        'scheduled_publish_time':'',
        'sponsor_relationship':'0',
        'target_type':'group',
        'xc_disable_config[xc_disable_link]':'',
        'xc_sticker_id':'0',
        'xhpc_aggregated_story_composer':'false',
        'xhpc_composerid':'', # tenia un valor
        'xhpc_context': 'profile',  
        'xhpc_finch': 'false',
        'xhpc_fundraiser_page':'false',
        'xhpc_ismeta': '1',
        'xhpc_message_text': message,
        'xhpc_message': message,
        'xhpc_modal_composer':'false',
        'xhpc_origintopicfeedid':'',
        'xhpc_publish_type':'1', 
        'xhpc_socialplugin':'false',
        'xhpc_targetid': pageID,
        'xhpc_timeline': 'false',
        'xhpc_topicfeedid':'',
    }

    response = session.post('https://www.facebook.com/ajax/updatestatus.php?av='+str(uID)+'&dpr=1',
                            data=data,

                            headers = {'Content-Type':'application/x-www-form-urlencoded'})

try:
    main(username='******', password='*******', page='*****', imgurURL='imgurURL=http://imgur.com/search?q=funny')
except Exception, e:
    logging.exception(e)
    print e

I have this code partly done by me, partly based on a code to post on a Facebook page that does not work anymore. Log in well, answer 200, but return this error message when posting

  

for (;;); {"__ ar": 1, "__ sf": "iw", "error": 1367001, "errorSummary": "I do not know   You can post in this biography "," errorDescription ":" The message   could not be posted to this   Timeline. "," Payload ": null," bootloadable ": {}," ixData ": {}," lid ":" 6409190691856604279 "}

I do not want to use the Facebook API for several reasons, one is educational, the other is that the permission to publish in a group requires review by Facebook, send them a kind of documentation / video on how the APP is used, etc. The most likely thing is that it is failing in some of all the variables posts that I have to send, but I do not find that it can be.