SSL: certificate_verify_failed using Google Assistant SDK - ssl

Question

I'm trying to get the google assistant sdk sample running on a pi but after receiving the authorization URL by using
google-oauthlib-tool --client-secrets /home/pi/client_secret_<my-id>.json --scope https://www.googleapis.com/auth/assistant-sdk-prototype --save --headless
I enter the code from the provided url and get this dump:
Traceback (most recent call last):
File "/home/pi/env/lib/python3.4/site-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/home/pi/env/lib/python3.4/site-packages/urllib3/connectionpool.py", line 345, in _make_request
self._validate_conn(conn)
File "/home/pi/env/lib/python3.4/site-packages/urllib3/connectionpool.py", line 844, in _validate_conn
conn.connect()
File "/home/pi/env/lib/python3.4/site-packages/urllib3/connection.py", line 326, in connect
ssl_context=context)
File "/home/pi/env/lib/python3.4/site-packages/urllib3/util/ssl_.py", line 325, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "/usr/lib/python3.4/ssl.py", line 364, in wrap_socket
_context=self)
File "/usr/lib/python3.4/ssl.py", line 577, in __init__
self.do_handshake()
File "/usr/lib/python3.4/ssl.py", line 804, in do_handshake
self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/pi/env/lib/python3.4/site-packages/requests/adapters.py", line 440, in send
timeout=timeout
File "/home/pi/env/lib/python3.4/site-packages/urllib3/connectionpool.py", line 630, in urlopen
raise SSLError(e)
urllib3.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/pi/env/bin/google-oauthlib-tool", line 11, in <module>
sys.exit(main())
File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 722, in __call__
return self.main(*args, **kwargs)
File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 697, in main
rv = self.invoke(ctx)
File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 895, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 535, in invoke
return callback(*args, **kwargs)
File "/home/pi/env/lib/python3.4/site-packages/google_auth_oauthlib/tool/__main__.py", line 106, in main
creds = flow.run_console()
File "/home/pi/env/lib/python3.4/site-packages/google_auth_oauthlib/flow.py", line 358, in run_console
self.fetch_token(code=code)
File "/home/pi/env/lib/python3.4/site-packages/google_auth_oauthlib/flow.py", line 235, in fetch_token
**kwargs)
File "/home/pi/env/lib/python3.4/site-packages/requests_oauthlib/oauth2_session.py", line 221, in fetch_token
verify=verify, proxies=proxies)
File "/home/pi/env/lib/python3.4/site-packages/requests/sessions.py", line 560, in post
return self.request('POST', url, data=data, json=json, **kwargs)
File "/home/pi/env/lib/python3.4/site-packages/requests_oauthlib/oauth2_session.py", line 360, in request
headers=headers, data=data, **kwargs)
File "/home/pi/env/lib/python3.4/site-packages/requests/sessions.py", line 513, in request
resp = self.send(prep, **send_kwargs)
File "/home/pi/env/lib/python3.4/site-packages/requests/sessions.py", line 623, in send
r = adapter.send(request, **kwargs)
File "/home/pi/env/lib/python3.4/site-packages/requests/adapters.py", line 514, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)
I checked this post which had a similar issue and updated my clock accordingly but that didn't seem to be the problem. I have redownloaded all the libraries and tools and ensured python is up to date but I can't get this to work. Is there any solution to this issue?
It is also worth noting that this same trace occurs regardless of what i put in as the authorization code, even just putting in "x" produces the same output.

Answer 1

I was following the instructions at https://developers.google.com/assistant/sdk/develop/python/run-sample but I think those instructions forgot the step:
sudo apt-get install portaudio19-dev libffi-dev libssl-dev
Doing that then re-running google-oauthlib-tool worked.