Traceback (most recent call last):


 "/usr/lib/python3/dist-packages/cherrypy/wsgiserver/__init__.py", line 2021, in start

self.tick()


 "/usr/lib/python3/dist-packages/cherrypy/wsgiserver/__init__.py", line 2090, in tick

s, ssl_env = self.ssl_adapter.wrap(s)


 "/usr/lib/python3/dist-packages/cherrypy/wsgiserver/ssl_builtin.py", line 67, in wrap

server_side=True)


 "/usr/lib/python3.6/ssl.py", line 407, in wrap_socket

_context=self, _session=session)


 "/usr/lib/python3.6/ssl.py", line 817, in __init__

self.do_handshake()


 "/usr/lib/python3.6/ssl.py", line 1077, in do_handshake

self._sslobj.do_handshake()


 "/usr/lib/python3.6/ssl.py", line 689, in do_handshake

self._sslobj.do_handshake()
ssl.SSLError: [SSL: SSLV3_ALERT_CERTIFICATE_UNKNOWN] sslv3 alert certificate unknown (_ssl.c:852)

Traceback (most recent call last):


 "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 555, in urlopen

self._prepare_proxy(conn)


 "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 753, in _prepare_proxy

conn.connect()


 "/usr/lib/python3/dist-packages/urllib3/connection.py", line 252, in connect

ssl_version=resolved_ssl_version)


 "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 305, in ssl_wrap_socket

return context.wrap_socket(sock, server_hostname=server_hostname)


 "/usr/lib/python3.5/ssl.py", line 377, in wrap_socket

_context=self)


 "/usr/lib/python3.5/ssl.py", line 752, in __init__

self.do_handshake()


 "/usr/lib/python3.5/ssl.py", line 988, in do_handshake

self._sslobj.do_handshake()


 "/usr/lib/python3.5/ssl.py", line 633, in do_handshake

self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)
