<strong>&laquo;Сообщение&raquo;</strong>: Вы не можете писат

# -*- coding: utf-8 -*-
import httplib
import urllib
import sys
import re
from random import choice
import time

email = 'tz4678@gmail.com'
password = '***'
user_agent = 'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/25.0'

def replace_partial(m):
    return choice(m.group(1).split('|'))

def format_message(msg):
    return re.sub('\{([^}]*)\}', replace_partial, msg)

# получаем токен
conn = httplib.HTTPConnection('optlist.ru')
conn.request('HEAD', '/login/', None, {
    'User-Agent': user_agent,
})
res = conn.getresponse()
cookie = res.getheader('set-cookie')
cookie = cookie[:cookie.find(';')]
payload = urllib.urlencode({
    'email': email,
    'password': password,
    'csrfmiddlewaretoken': cookie.split('=')[1]
})
conn = httplib.HTTPConnection('optlist.ru')
conn.request('POST', '/login/', payload, {
    'User-Agent': user_agent,
    'Cookie': cookie,
    'Content-Type': 'application/x-www-urlencoded'
})
res = conn.getresponse()
if res.getheader('location') != 'http://optlist.ru/suppliers/':
    print u'Ошибка авторизации'
    sys.exit()
cookie = res.getheader('set-cookie')
cookie = cookie[:cookie.find(';')]
hashes = open('hashes.txt').read().splitlines()
counter = 5
for hash in hashes:
    try:
        conn = httplib.HTTPConnection('optlist.ru')
        conn.request('HEAD', '/send_message/%s/' % hash, None, {
            'User-Agent': user_agent,
            'Cookie': cookie,
        })
        res = conn.getresponse()
        cookie1 = res.getheader('set-cookie')
        cookie1 = cookie1[:cookie1.find(';')]
        subject = u'Привет'
        body = u'{Привет|Здоров|Ку}, {друг|пасан|приятель}! {Как жизнь|Как оно|Чо делаешь}?'
        payload = urllib.urlencode({
            'subject': subject.encode('utf-8'),
            'body': format_message(body).encode('utf-8'),
            'csrfmiddlewaretoken': cookie1.split('=')[1]
        })
        cookie1 = cookie + '; ' + cookie1
        print cookie1
        conn = httplib.HTTPConnection('optlist.ru')
        conn.request('POST', '/send_message/' + hash + '/', payload, {
            'User-Agent': user_agent,
            'Cookie': cookie1,
            'Content-Type': 'application/x-www-urlencoded'
        })
        res = conn.getresponse()
        # print res.getheaders()
        # print res.read().decode('utf-8')
        if res.getheader('location') == 'http://optlist.ru/message_sent/':
            print u'Сообщение было отправлено'
        else:
            print u'Сообщение не было отправлено'
    except Exception, e:
        print str(e)
    counter -= 1
    if not counter:
        break