from urllib.request import urlretrieve
urlretrieve("https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data", LOCAL_DATA_DIR)
nbconvert.preprocessors.execute.CellExecutionError: An error occurred while executing the following cell:
------------------
from urllib.request import urlretrieve
urlretrieve("https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data", LOCAL_DATA_DIR)
------------------
---------------------------------------------------------------------------
SSLError Traceback (most recent call last)
/usr/lib/python3.5/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
1253 try:
-> 1254 h.request(req.get_method(), req.selector, req.data, headers)
1255 except OSError as err: # timeout error
/usr/lib/python3.5/http/client.py in request(self, method, url, body, headers)
1105 """Send a complete request to the server."""
-> 1106 self._send_request(method, url, body, headers)
1107
/usr/lib/python3.5/http/client.py in _send_request(self, method, url, body, headers)
1150 body = _encode(body, 'body')
-> 1151 self.endheaders(body)
1152
/usr/lib/python3.5/http/client.py in endheaders(self, message_body)
1101 raise CannotSendHeader()
-> 1102 self._send_output(message_body)
1103
/usr/lib/python3.5/http/client.py in _send_output(self, message_body)
933
--> 934 self.send(msg)
935 if message_body is not None:
/usr/lib/python3.5/http/client.py in send(self, data)
876 if self.auto_open:
--> 877 self.connect()
878 else:
/usr/lib/python3.5/http/client.py in connect(self)
1259 self.sock = self._context.wrap_socket(self.sock,
-> 1260 server_hostname=server_hostname)
1261 if not self._context.check_hostname and self._check_hostname:
/usr/lib/python3.5/ssl.py in wrap_socket(self, sock, server_side, do_handshake_on_connect, suppress_ragged_eofs, server_hostname)
376 server_hostname=server_hostname,
--> 377 _context=self)
378
/usr/lib/python3.5/ssl.py in __init__(self, sock, keyfile, certfile, server_side, cert_reqs, ssl_version, ca_certs, do_handshake_on_connect, family, type, proto, fileno, suppress_ragged_eofs, npn_protocols, ciphers, server_hostname, _context)
751 raise ValueError("do_handshake_on_connect should not be specified for non-blocking sockets")
--> 752 self.do_handshake()
753
/usr/lib/python3.5/ssl.py in do_handshake(self, block)
987 self.settimeout(None)
--> 988 self._sslobj.do_handshake()
989 finally:
/usr/lib/python3.5/ssl.py in do_handshake(self)
632 """Start the SSL/TLS handshake."""
--> 633 self._sslobj.do_handshake()
634 if self.context.check_hostname:
SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)
During handling of the above exception, another exception occurred:
URLError Traceback (most recent call last)
<ipython-input-8-7c9b008399c2> in <module>
1 from urllib.request import urlretrieve
2
----> 3 urlretrieve("https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data", LOCAL_DATA_DIR)
/usr/lib/python3.5/urllib/request.py in urlretrieve(url, filename, reporthook, data)
186 url_type, path = splittype(url)
187
--> 188 with contextlib.closing(urlopen(url, data)) as fp:
189 headers = fp.info()
190
/usr/lib/python3.5/urllib/request.py in urlopen(url, data, timeout, cafile, capath, cadefault, context)
161 else:
162 opener = _opener
--> 163 return opener.open(url, data, timeout)
164
165 def install_opener(opener):
/usr/lib/python3.5/urllib/request.py in open(self, fullurl, data, timeout)
464 req = meth(req)
465
--> 466 response = self._open(req, data)
467
468 # post-process response
/usr/lib/python3.5/urllib/request.py in _open(self, req, data)
482 protocol = req.type
483 result = self._call_chain(self.handle_open, protocol, protocol +
--> 484 '_open', req)
485 if result:
486 return result
/usr/lib/python3.5/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args)
442 for handler in handlers:
443 func = getattr(handler, meth_name)
--> 444 result = func(*args)
445 if result is not None:
446 return result
/usr/lib/python3.5/urllib/request.py in https_open(self, req)
1295 def https_open(self, req):
1296 return self.do_open(http.client.HTTPSConnection, req,
-> 1297 context=self._context, check_hostname=self._check_hostname)
1298
1299 https_request = AbstractHTTPHandler.do_request_
/usr/lib/python3.5/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
1254 h.request(req.get_method(), req.selector, req.data, headers)
1255 except OSError as err: # timeout error
-> 1256 raise URLError(err)
1257 r = h.getresponse()
1258 except:
URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)>
URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)>