如何在电报错误时得到通知？

Question

My telegram bot consists of a telepot DelegatorBot . When the internet connection goes down, telepot notices, throws an error, catches it (so I assume) and retries.
How can I notice that an error happened and log accordingly, without just redirecting stdout to a file?

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/telepot/loop.py", line 60, in run_forever
    allowed_updates=allowed_updates)
  File "/usr/local/lib/python2.7/dist-packages/telepot/__init__.py", line 993, in getUpdates
    return self._api_request('getUpdates', _rectify(p))
  File "/usr/local/lib/python2.7/dist-packages/telepot/__init__.py", line 491, in _api_request
    return api.request((self._token, method, params, files), **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/telepot/api.py", line 154, in request
    r = fn(*args, **kwargs)  # `fn` must be thread-safe
  File "/usr/local/lib/python2.7/dist-packages/urllib3/request.py", line 148, in request_encode_body
    return self.urlopen(method, url, **extra_kw)
  File "/usr/local/lib/python2.7/dist-packages/urllib3/poolmanager.py", line 321, in urlopen
    response = conn.urlopen(method, u.request_uri, **kw)
  File "/usr/local/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 668, in urlopen
    **response_kw)
  File "/usr/local/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 668, in urlopen
    **response_kw)
  File "/usr/local/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 668, in urlopen
    **response_kw)
  File "/usr/local/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 639, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/local/lib/python2.7/dist-packages/urllib3/util/retry.py", line 388, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
MaxRetryError: HTTPSConnectionPool(host='api.telegram.org', port=443): Max retries exceeded with url: /bot516341178:AAFcm4EYHvQerSCmzhcRhngEEd0he2GF07Q/getUpdates (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x75c26c90>: Failed to establish a new connection: [Errno -2] Name or service not known',))

The docs don't seem to cover MaxRetryError

Answer 1

I don't know if you solved your issue but I was working just yesterday on something similar.

my code to get the error is :

try:
    browserSelenium.startThreadBrowserStartLiking(chat_id, hoursToCatchUp)
    ex = ''
except Exception as e:
    print(e)
    ex = '%s\nIF YOU SAW THIS MESSAGE, PLEASE COPY THIS TEXT AND CONTACT AN ADMIN!!!' % e

and when I sant a message I alway send ex to de end of the message.

You could implement the notification message into the except with something like

bot.sendMessage(chat_id, 'Error: \n%s' % ex)

Answer 2

I'd maybe try to just use a try except clausule to send myself a Telegram message with the debugging text whenever the error happens. I mean, we're already on Telegram, huh?

try:
    # whatever may cause an error
except:
    bot.sendMessage("YOUR_USER_ID","THE_ERROR_MESSAGE")