ERROR: unable to get local issuer certificate (_ssl.c:1123) #5
Description
using Ubuntu 20.03 with NUS_STU wifi, latest python 3.8.5, did pip3 with requirements.txt
tried to python3 pyfluminus_cli.py -username="e123456" -password="password" (obviously not real credentials)
got the following error:
Traceback (most recent call last):
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 665, in urlopen
httplib_response = self._make_request(
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 376, in _make_request
self._validate_conn(conn)
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 994, in validate_conn
conn.connect()
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/connection.py", line 386, in connect
self.sock = ssl_wrap_socket(
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/util/ssl.py", line 370, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "/usr/lib/python3.8/ssl.py", line 500, in wrap_socket
return self.sslsocket_class._create(
File "/usr/lib/python3.8/ssl.py", line 1040, in _create
self.do_handshake()
File "/usr/lib/python3.8/ssl.py", line 1309, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 439, in send
resp = conn.urlopen(
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 719, in urlopen
retries = retries.increment(
File "/home/naws/.local/lib/python3.8/site-packages/urllib3/util/retry.py", line 436, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='luminus.nus.edu.sg', port=443): Max retries exceeded with url: /auth/callback?code=itFF1arP8UGo8DZsRZZDGg.IavbUaiz2AjgZhCQENfk4bNurmI.CSB1siK9zkWoL9RGFndyd_CyMp-UIvyYSlS-WIH_dLsCV_ynMNINlRHQ2uv-IYOpA5D1JDxth7IO47546yNvnPNEqCM_ZzudsuTY5ptO4kfmI2uy1OEyuzgyhkrlEPzRTnjv0eYlc-bkxJE79fTZqWX0q8bL6FR0igYKs1qjlmDlB29FyKvCcc9KbEMZ7ca7S3ekRf9ZedN7-flaX-tbQfGrRPVuPNrBwU8-p7dWusLdAtKqLEOVQPU5gVcQRWNRdeyHvHgFPOvsFxdy8PzjI24FVn6JeSCdwJAQEdlw6ekvqwCM-ewVt6MzkcgQfjTMQ8vrWayIXNxXlheA9m_yZg (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)')))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "pyfluminus_cli.py", line 47, in
auth = vafs_jwt("nusstu\" + username, password)
File "/home/naws/pyfluminus/pyfluminus/authorization.py", line 33, in vafs_jwt
response = requests.post(url, headers=auth_headers, data=auth_data)
File "/usr/lib/python3/dist-packages/requests/api.py", line 116, in post
return request('post', url, data=data, json=json, **kwargs)
File "/usr/lib/python3/dist-packages/requests/api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 668, in send
history = [resp for resp in gen] if allow_redirects else []
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 668, in
history = [resp for resp in gen] if allow_redirects else []
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 239, in resolve_redirects
resp = self.send(
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 514, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='luminus.nus.edu.sg', port=443): Max retries exceeded with url: /auth/callback?code=itFF1arP8UGo8DZsRZZDGg.IavbUaiz2AjgZhCQENfk4bNurmI.CSB1siK9zkWoL9RGFndyd_CyMp-UIvyYSlS-WIH_dLsCV_ynMNINlRHQ2uv-IYOpA5D1JDxth7IO47546yNvnPNEqCM_ZzudsuTY5ptO4kfmI2uy1OEyuzgyhkrlEPzRTnjv0eYlc-bkxJE79fTZqWX0q8bL6FR0igYKs1qjlmDlB29FyKvCcc9KbEMZ7ca7S3ekRf9ZedN7-flaX-tbQfGrRPVuPNrBwU8-p7dWusLdAtKqLEOVQPU5gVcQRWNRdeyHvHgFPOvsFxdy8PzjI24FVn6JeSCdwJAQEdlw6ekvqwCM-ewVt6MzkcgQfjTMQ8vrWayIXNxXlheA9m_yZg (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)')))