I am getting an ssl error when using my fresh sage build.
I admit that I first build sage without thinking about ssl, and then did
sage -i openssl and sage -f python3.
Should I rebuild from scratch? If so, what should I do exactly?
Martin
sage: oeis([sum(1 for la in Partitions(n)) for n in range(1,10)])
---------------------------------------------------------------------------
SSLCertVerificationError Traceback (most recent call last)
~/sage-develop/local/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
~/sage-develop/local/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
~/sage-develop/local/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
~/sage-develop/local/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
~/sage-develop/local/lib/python3.7/http/client.py in _send_output(self,
message_body, encode_chunked)
1015 del self._buffer[:]
-> 1016 self.send(msg)
1017
~/sage-develop/local/lib/python3.7/http/client.py in send(self, data)
955 if self.auto_open:
--> 956 self.connect()
957 else:
~/sage-develop/local/lib/python3.7/http/client.py in connect(self)
1391 self.sock = self._context.wrap_socket(self.sock,
-> 1392
server_hostname=server_hostname)
1393
~/sage-develop/local/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 )
~/sage-develop/local/lib/python3.7/ssl.py in _create(cls, sock,
server_side, do_handshake_on_connect, suppress_ragged_eofs,
server_hostname, context, session)
852 raise ValueError("do_handshake_on_connect
should not be specified for non-blocking sockets")
--> 853 self.do_handshake()
854 except (OSError, ValueError):
~/sage-develop/local/lib/python3.7/ssl.py in do_handshake(self, block)
1116 self.settimeout(None)
-> 1117 self._sslobj.do_handshake()
1118 finally:
SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate
verify failed: unable to get local issuer certificate (_ssl.c:1056)
During handling of the above exception, another exception occurred:
URLError Traceback (most recent call last)
~/sage-develop/local/lib/python3.7/site-packages/sage/databases/oeis.py in
_fetch(url)
202 verbose("Fetching URL %s ..." % url, caller_name='OEIS')
--> 203 f = urlopen(url)
204 result = f.read()
~/sage-develop/local/lib/python3.7/urllib/request.py in urlopen(url, data,
timeout, cafile, capath, cadefault, context)
221 opener = _opener
--> 222 return opener.open(url, data, timeout)
223
~/sage-develop/local/lib/python3.7/urllib/request.py in open(self, fullurl,
data, timeout)
524
--> 525 response = self._open(req, data)
526
~/sage-develop/local/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:
~/sage-develop/local/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:
~/sage-develop/local/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
~/sage-develop/local/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: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate
verify failed: unable to get local issuer certificate (_ssl.c:1056)>
During handling of the above exception, another exception occurred:
OSError Traceback (most recent call last)
<ipython-input-55-630fae82349f> in <module>
----> 1 oeis([sum(Integer(1) for la in Partitions(n)) for n in
range(Integer(1),Integer(10))])
~/sage-develop/local/lib/python3.7/site-packages/sage/misc/lazy_import.pyx
in sage.misc.lazy_import.LazyImport.__call__
(build/cythonized/sage/misc/lazy_import.c:3736)()
351 True
352 """
--> 353 return self.get_object()(*args, **kwds)
354
355 def __repr__(self):
~/sage-develop/local/lib/python3.7/site-packages/sage/databases/oeis.py in
__call__(self, query, max_results, first_result)
385 return self.find_by_id(query)
386 elif isinstance(query, (list, tuple)):
--> 387 return self.find_by_subsequence(query, max_results,
first_result)
388
389 def __repr__(self):
~/sage-develop/local/lib/python3.7/site-packages/sage/databases/oeis.py in
find_by_subsequence(self, subsequence, max_results, first_result)
534 """
535 subsequence = str(subsequence)[1:-1]
--> 536 return self.find_by_description(subsequence, max_results,
first_result)
537
538 def browse(self):
~/sage-develop/local/lib/python3.7/site-packages/sage/databases/oeis.py in
find_by_description(self, description, max_results, first_result)
499 'start': str(first_result)}
500 url = oeis_url + "search?" + urlencode(options)
--> 501 sequence_list = _fetch(url).split('\n\n')[2:-1]
502 return FancyTuple([self.find_by_entry(entry=_) for _ in
sequence_list])
503
~/sage-develop/local/lib/python3.7/site-packages/sage/databases/oeis.py in
_fetch(url)
206 return bytes_to_str(result)
207 except IOError as msg:
--> 208 raise IOError("%s\nError fetching %s." % (msg, url))
209
210
OSError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify
failed: unable to get local issuer certificate (_ssl.c:1056)>
Error fetching
https://oeis.org/search?q=1%2C+2%2C+3%2C+5%2C+7%2C+11%2C+15%2C+22%2C+30&n=3&fmt=text&start=0.
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