Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/telegram/utils/request.py", line 174, in _request_wrapper
    resp = self._con_pool.request(*args, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/request.py", line 70, in request
    **urlopen_kw)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/request.py", line 148, in request_encode_body
    return self.urlopen(method, url, **extra_kw)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/poolmanager.py", line 244, in urlopen
    response = conn.urlopen(method, u.request_uri, **kw)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/connectionpool.py", line 666, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/util/retry.py", line 347, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/packages/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/connectionpool.py", line 617, in urlopen
    chunked=chunked)
  File "/usr/local/lib/python3.6/dist-packages/telegram/vendor/ptb_urllib3/urllib3/connectionpool.py", line 390, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1065, in _send_output
    self.send(chunk)
  File "/usr/lib/python3.6/http/client.py", line 986, in send
    self.sock.sendall(data)
  File "/usr/lib/python3.6/ssl.py", line 965, in sendall
    v = self.send(data[count:])
  File "/usr/lib/python3.6/ssl.py", line 935, in send
    return self._sslobj.write(data)
  File "/usr/lib/python3.6/ssl.py", line 636, in write
    return self._sslobj.write(data)
telegram.vendor.ptb_urllib3.urllib3.exceptions.ProtocolError: ('Connection aborted.', timeout('The write operation timed out',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.6/threading.py", line 1182, in run
    self.function(*self.args, **self.kwargs)
  File "/home/andreychik/college_bot/cron.py", line 35, in check_zamenas
    notify_all()
  File "/home/andreychik/college_bot/cron.py", line 14, in notify_all
    return config.bot.send_photo(chat_id=config.chat_id, photo=open('Zameni.jpg', 'rb'), caption="Новый список замен!")
  File "/usr/local/lib/python3.6/dist-packages/telegram/bot.py", line 57, in decorator
    result = func(self, *args, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/telegram/bot.py", line 69, in decorator
    return self._message_wrapper(url, data, *args, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/telegram/bot.py", line 175, in _message_wrapper
    result = self._request.post(url, data, timeout=kwargs.get('timeout'))
  File "/usr/local/lib/python3.6/dist-packages/telegram/utils/request.py", line 248, in post
    'POST', url, body=data.to_form(), headers=data.headers, **urlopen_kwargs)
  File "/usr/local/lib/python3.6/dist-packages/telegram/utils/request.py", line 180, in _request_wrapper
    raise NetworkError('urllib3 HTTPError {0}'.format(error))
telegram.error.NetworkError: urllib3 HTTPError ('Connection aborted.', timeout('The write operation timed out',))

[<telegram.message.Message object at 0x7f7c76029ef0>, <telegram.message.Message object at 0x7f7c7601d0b8>]