Problems with starting Telegram bot - flask

Question

I'm trying to deploy my telegram-bot on PythonAnywhere. It has worked fine with the free account but there are some troubles with the paid one. I'm getting "OpenSSL.SSL.Error: [('SSL routines', 'ssl3_get_record', 'decryption failed or bad record mac')]" messages in Error logs (accordingly bot works wrong). How can I solve it?
I'm using python3.7 + pyTelegramBotAPI + flask
Code example for error reproducing:
# coding=utf-8
import telebot
import flask
import time
token = 'bot_token'
bot = telebot.TeleBot(token, threaded=False)
WEBHOOK_HOST = '*userName*.pythonanywhere.com'
WEBHOOK_URL_BASE = "https://%s" % (WEBHOOK_HOST)
WEBHOOK_URL_PATH = "/%s/" % (token)
app = flask.Flask(__name__)
# Process webhook calls
#app.route(WEBHOOK_URL_PATH, methods=['POST'])
def webhook():
if flask.request.headers.get('content-type') == 'application/json':
json_string = flask.request.get_data().decode('utf-8')
update = telebot.types.Update.de_json(json_string)
bot.process_new_updates([update])
return ''
else:
flask.abort(403)
#bot.message_handler(commands=['start', 'help'])
def handle_start_help(message):
bot.send_message(message.chat.id, text="Hello, my friend")
bot.remove_webhook()
time.sleep(0.1)
bot.set_webhook(url=WEBHOOK_URL_BASE + WEBHOOK_URL_PATH)
Full error trace:
2018-10-30 12:40:33,351: Exception on /*token*/ [POST]
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/flask/app.py", line 2292, in wsgi_app
response = self.full_dispatch_request()
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1815, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1718, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3.7/site-packages/flask/_compat.py", line 35, in reraise
raise value
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1813, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1799, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/home/kleratoni/bot/bot/Main.py", line 90, in webhook
bot.process_new_updates([update])
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/__init__.py", line 326, in process_new_updates
self.process_new_callback_query(new_callback_querys)
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/__init__.py", line 354, in process_new_callback_query
self._notify_command_handlers(self.callback_query_handlers, new_callback_querys)
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/__init__.py", line 1490, in _notify_command_handlers
self._exec_task(message_handler['function'], message)
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/__init__.py", line 464, in _exec_task
task(*args, **kwargs)
File "/home/*accountName*/bot/bot/Main.py", line 535, in callback_inline
MainMenuActions.BetMenu_BackButton(call.message, bot, db)
File "/home/*accountName*/bot/bot/MainMenuActions.py", line 130, in BetMenu_BackButton
bot.send_message(message.chat.id, text=config.StringContent["StartPlayWords"], reply_markup=keyborads.keyboardMainmenu)
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/__init__.py", line 598, in send_message
reply_markup, parse_mode, disable_notification))
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/apihelper.py", line 140, in send_message
return _make_request(token, method_url, params=payload, method='post')
File "/home/*accountName*/.local/lib/python3.7/site-packages/telebot/apihelper.py", line 54, in _make_request
timeout=(connect_timeout, read_timeout), proxies=proxy)
File "/usr/lib/python3.7/site-packages/requests/sessions.py", line 512, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3.7/site-packages/requests/sessions.py", line 622, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3.7/site-packages/requests/adapters.py", line 445, in send
timeout=timeout
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 384, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 380, in _make_request
httplib_response = conn.getresponse()
File "/usr/lib/python3.7/http/client.py", line 1321, in getresponse
response.begin()
File "/usr/lib/python3.7/http/client.py", line 296, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.7/http/client.py", line 257, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/lib/python3.7/socket.py", line 589, in readinto
return self._sock.recv_into(b)
File "/usr/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 300, in recv_into
return self.recv_into(*args, **kwargs)
File "/usr/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 285, in recv_into
return self.connection.recv_into(*args, **kwargs)
File "/usr/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1814, in recv_into
self._raise_ssl_error(self._ssl, result)
File "/usr/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1639, in _raise_ssl_error
_raise_current_error()
File "/usr/lib/python3.7/site-packages/OpenSSL/_util.py", line 54, in exception_from_error_queue
raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'ssl3_get_record', 'decryption failed or bad record mac')]

Answer 1

From an issue on the pyTelegramBotAPI github repo, it looks like it's an incompatibility between the version of requests you're using and the version of OpenSSL you're using. Try using requests 2.10.0 instead.

Answer 2

I had a same error and I fixed like this
token = 'bot_token'
bot = telebot.TeleBot(token, threaded=False)