Styjun

I recently installed python 3.7 on macOS High OSierra and spent ages trying to get it working. That question is here. Currently I am having problems with the below code and wondered if anyone can help.

import geopy
geocoder = geopy.geocoders.GoogleV3(domain = "maps.google.co.uk")
geocoder.geocode("Cambridge", exactly_one = False)

Results in the following error:

SSLCertVerificationError Traceback (most recent call last)
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py
in do_open(self, http_class, req, **http_conn_args) 1316

h.request(req.get_method(), req.selector, req.data, headers,
-> 1317 encode_chunked=req.has_header('Transfer-encoding')) 1318

except OSError as err: # timeout error

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py
in request(self, method, url, body, headers, encode_chunked) 1228

"""Send a complete request to the server."""
-> 1229 self._send_request(method, url, body, headers, encode_chunked) 1230

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py
in _send_request(self, method, url, body, headers, encode_chunked)

1274 body = _encode(body, 'body')
-> 1275 self.endheaders(body, encode_chunked=encode_chunked) 1276

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py
in endheaders(self, message_body, encode_chunked) 1223

raise CannotSendHeader()
-> 1224 self._send_output(message_body, encode_chunked=encode_chunked) 1225

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py
in _send_output(self, message_body, encode_chunked) 1015

del self._buffer[:]
-> 1016 self.send(msg) 1017

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py
in send(self, data)
955 if self.auto_open:
--> 956 self.connect()
957 else:

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/http/client.py
in connect(self) 1391 self.sock =
self._context.wrap_socket(self.sock,
-> 1392 server_hostname=server_hostname) 1393

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py
in wrap_socket(self, sock, server_side, do_handshake_on_connect,
suppress_ragged_eofs, server_hostname, session)
411 context=self,
--> 412 session=session
413 )

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py
in _create(cls, sock, server_side, do_handshake_on_connect,
suppress_ragged_eofs, server_hostname, context, session)
849 raise ValueError("do_handshake_on_connect should not be specified for
non-blocking sockets")
--> 850 self.do_handshake()
851 except (OSError, ValueError):

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py
in do_handshake(self, block) 1107

self.settimeout(None)
-> 1108 self._sslobj.do_handshake() 1109 finally:

SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate
chain (_ssl.c:1045)

During handling of the above exception, another exception occurred:

URLError Traceback (most recent call last)
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/geopy/geocoders/base.py
in _call_geocoder(self, url, timeout, raw, requester, deserializer,
**kwargs)
314 try:
--> 315 page = requester(req, timeout=timeout, **kwargs)
316 except Exception as error:

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py
in open(self, fullurl, data, timeout)
524
--> 525 response = self._open(req, data)
526

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py
in _open(self, req, data)
542 result = self._call_chain(self.handle_open, protocol, protocol +
--> 543 '_open', req)
544 if result:

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py
in _call_chain(self, chain, kind, meth_name, *args)
502 func = getattr(handler, meth_name)
--> 503 result = func(*args)
504 if result is not None:

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py
in https_open(self, req) 1359 return
self.do_open(http.client.HTTPSConnection, req,
-> 1360 context=self._context, check_hostname=self._check_hostname) 1361

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py
in do_open(self, http_class, req, **http_conn_args) 1318

except OSError as err: # timeout error
-> 1319 raise URLError(err) 1320 r = h.getresponse()

URLError:

During handling of the above exception, another exception occurred:

GeocoderServiceError Traceback (most recent call last)
in ()
----> 1 geocoder.geocode("Cambridge", exactly_one = False)

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/geopy/geocoders/googlev3.py
in geocode(self, query, exactly_one, timeout, bounds, region,
components, language, sensor)
240 logger.debug("%s.geocode: %s", self.class.name, url)
241 return self._parse_json(
--> 242 self._call_geocoder(url, timeout=timeout), exactly_one
243 )
244

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/geopy/geocoders/base.py
in _call_geocoder(self, url, timeout, raw, requester, deserializer,
**kwargs)
340 if "timed out" in message:
341 raise GeocoderTimedOut('Service timed out')
--> 342 raise GeocoderServiceError(message)
343
344 if hasattr(page, 'getcode'):

GeocoderServiceError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain
(_ssl.c:1045)

Take a look at the following link: here

I was able to get it working by running the second command on that page:

open /Applications/Python 3.7/Install Certificates.command