8000 SSL Certification error · Issue #334 · slackapi/python-slack-sdk · GitHub
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SSL Certification error #334

@sophiefitzpatrick

Description

@sophiefitzpatrick

Description

I've built a bot in python 3.7 using a virtual engine, when I come to run the code I get this error:

/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/urllib3/connectionpool.py:857: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
  InsecureRequestWarning)
Traceback (most recent call last):
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/slackclient/server.py", line 179, in connect_slack_websocket
    http_proxy_auth=proxy_auth)
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/websocket/_core.py", line 494, in create_connection
    websock.connect(url, **options)
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/websocket/_core.py", line 217, in connect
    options.pop('socket', None))
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/websocket/_http.py", line 126, in connect
    sock = _ssl_socket(sock, options.sslopt, hostname)
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/websocket/_http.py", line 253, in _ssl_socket
    sock = _wrap_sni_socket(sock, sslopt, hostname, check_hostname)
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/websocket/_http.py", line 232, in _wrap_sni_socket
    server_hostname=hostname,
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 412, in wrap_socket
    session=session
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 850, in _create
    self.do_handshake()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 1108, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1045)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/slackclient/client.py", line 52, in rtm_connect
    self.server.rtm_connect(use_rtm_start=with_team_state, **kwargs)
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/slackclient/server.py", line 147, in rtm_connect
    self.connect_slack_websocket(self.ws_url)
  File "/Users/sophie/Dropbox/Programming/gallagherbot/lib/python3.7/site-packages/slackclient/server.py", line 186, in connect_slack_websocket
    raise SlackConnectionError(message=str(e))
slackclient.server.SlackConnectionError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1045)

Connection failed. Exception traceback printed above.

This seems similar to this: #325 but I tried the User's suggestion and it hasn't changed anything.

I have the bot's 'Bot User OAuth Access Token' stored as a variable which I refer to in the code

Any suggestions?

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python version: 3.7

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