pretrained-models.pytorch
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Published
20 hours ago •
Cadene
Cadene
SSL: CERTIFICATE_VERIFY_FAILED
I am getting an SSL Error trying to load ImageNet weights for the SEResNeXt50 & 101 models. Perhaps there is an expired certificate? Here is code to reproduce. Thanks in advance for your help, and many thanks for providing this package!
>>> import pretrainedmodels
>>> model_name = 'se_resnext101_32x4d' # same for 'se_resnext50_32x4d'
>>> model = pretrainedmodels.__dict__[model_name](num_classes=1000, pretrained='imagenet')
Downloading: "http://data.lip6.fr/cadene/pretrainedmodels/se_resnext101_32x4d-3b2fe3d8.pth" to /root/.cache/torch/checkpoints/se_resnext101_32x4d-3b2fe3d8.pth
---------------------------------------------------------------------------
SSLError Traceback (most recent call last)
/opt/conda/lib/python3.6/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
1317 h.request(req.get_method(), req.selector, req.data, headers,
-> 1318 encode_chunked=req.has_header('Transfer-encoding'))
1319 except OSError as err: # timeout error
/opt/conda/lib/python3.6/http/client.py in request(self, method, url, body, headers, encode_chunked)
1261 """Send a complete request to the server."""
-> 1262 self._send_request(method, url, body, headers, encode_chunked)
1263
/opt/conda/lib/python3.6/http/client.py in _send_request(self, method, url, body, headers, encode_chunked)
1307 body = _encode(body, 'body')
-> 1308 self.endheaders(body, encode_chunked=encode_chunked)
1309
/opt/conda/lib/python3.6/http/client.py in endheaders(self, message_body, encode_chunked)
1256 raise CannotSendHeader()
-> 1257 self._send_output(message_body, encode_chunked=encode_chunked)
1258
/opt/conda/lib/python3.6/http/client.py in _send_output(self, message_body, encode_chunked)
1035 del self._buffer[:]
-> 1036 self.send(msg)
1037
/opt/conda/lib/python3.6/http/client.py in send(self, data)
973 if self.auto_open:
--> 974 self.connect()
975 else:
/opt/conda/lib/python3.6/http/client.py in connect(self)
1422 self.sock = self._context.wrap_socket(self.sock,
-> 1423 server_hostname=server_hostname)
1424 if not self._context.check_hostname and self._check_hostname:
/opt/conda/lib/python3.6/ssl.py in wrap_socket(self, sock, server_side, do_handshake_on_connect, suppress_ragged_eofs, server_hostname, session)
406 server_hostname=server_hostname,
--> 407 _context=self, _session=session)
408
/opt/conda/lib/python3.6/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, _session)
816 raise ValueError("do_handshake_on_connect should not be specified for non-blocking sockets")
--> 817 self.do_handshake()
818
/opt/conda/lib/python3.6/ssl.py in do_handshake(self, block)
1076 self.settimeout(None)
-> 1077 self._sslobj.do_handshake()
1078 finally:
/opt/conda/lib/python3.6/ssl.py in do_handshake(self)
688 """Start the SSL/TLS handshake."""
--> 689 self._sslobj.do_handshake()
690 if self.context.check_hostname:
SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)
During handling of the above exception, another exception occurred:
URLError Traceback (most recent call last)
<ipython-input-13-1dd4c79befba> in <module>
----> 1 model = pretrainedmodels.__dict__[model_name](num_classes=1000, pretrained='imagenet')
2 # model.eval()
/opt/conda/lib/python3.6/site-packages/pretrainedmodels/models/senet.py in se_resnext101_32x4d(num_classes, pretrained)
439 if pretrained is not None:
440 settings = pretrained_settings['se_resnext101_32x4d'][pretrained]
--> 441 initialize_pretrained_model(model, num_classes, settings)
442 return model
/opt/conda/lib/python3.6/site-packages/pretrainedmodels/models/senet.py in initialize_pretrained_model(model, num_classes, settings)
371 'num_classes should be {}, but is {}'.format(
372 settings['num_classes'], num_classes)
--> 373 model.load_state_dict(model_zoo.load_url(settings['url']))
374 model.input_space = settings['input_space']
375 model.input_size = settings['input_size']
/opt/conda/lib/python3.6/site-packages/torch/hub.py in load_state_dict_from_url(url, model_dir, map_location, progress, check_hash)
490 sys.stderr.write('Downloading: "{}" to {}\n'.format(url, cached_file))
491 hash_prefix = HASH_REGEX.search(filename).group(1) if check_hash else None
--> 492 download_url_to_file(url, cached_file, hash_prefix, progress=progress)
493
494 # Note: extractall() defaults to overwrite file if exists. No need to clean up beforehand.
/opt/conda/lib/python3.6/site-packages/torch/hub.py in download_url_to_file(url, dst, hash_prefix, progress)
389 # We use a different API for python2 since urllib(2) doesn't recognize the CA
390 # certificates in older Python
--> 391 u = urlopen(url)
392 meta = u.info()
393 if hasattr(meta, 'getheaders'):
/opt/conda/lib/python3.6/urllib/request.py in urlopen(url, data, timeout, cafile, capath, cadefault, context)
221 else:
222 opener = _opener
--> 223 return opener.open(url, data, timeout)
224
225 def install_opener(opener):
/opt/conda/lib/python3.6/urllib/request.py in open(self, fullurl, data, timeout)
530 for processor in self.process_response.get(protocol, []):
531 meth = getattr(processor, meth_name)
--> 532 response = meth(req, response)
533
534 return response
/opt/conda/lib/python3.6/urllib/request.py in http_response(self, request, response)
640 if not (200 <= code < 300):
641 response = self.parent.error(
--> 642 'http', request, response, code, msg, hdrs)
643
644 return response
/opt/conda/lib/python3.6/urllib/request.py in error(self, proto, *args)
562 http_err = 0
563 args = (dict, proto, meth_name) + args
--> 564 result = self._call_chain(*args)
565 if result:
566 return result
/opt/conda/lib/python3.6/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args)
502 for handler in handlers:
503 func = getattr(handler, meth_name)
--> 504 result = func(*args)
505 if result is not None:
506 return result
/opt/conda/lib/python3.6/urllib/request.py in http_error_302(self, req, fp, code, msg, headers)
754 fp.close()
755
--> 756 return self.parent.open(new, timeout=req.timeout)
757
758 http_error_301 = http_error_303 = http_error_307 = http_error_302
/opt/conda/lib/python3.6/urllib/request.py in open(self, fullurl, data, timeout)
524 req = meth(req)
525
--> 526 response = self._open(req, data)
527
528 # post-process response
/opt/conda/lib/python3.6/urllib/request.py in _open(self, req, data)
542 protocol = req.type
543 result = self._call_chain(self.handle_open, protocol, protocol +
--> 544 '_open', req)
545 if result:
546 return result
/opt/conda/lib/python3.6/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args)
502 for handler in handlers:
503 func = getattr(handler, meth_name)
--> 504 result = func(*args)
505 if result is not None:
506 return result
/opt/conda/lib/python3.6/urllib/request.py in https_open(self, req)
1359 def https_open(self, req):
1360 return self.do_open(http.client.HTTPSConnection, req,
-> 1361 context=self._context, check_hostname=self._check_hostname)
1362
1363 https_request = AbstractHTTPHandler.do_request_
/opt/conda/lib/python3.6/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
1318 encode_chunked=req.has_header('Transfer-encoding'))
1319 except OSError as err: # timeout error
-> 1320 raise URLError(err)
1321 r = h.getresponse()
1322 except:
URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)>
Solution:
import ssl
ssl._create_default_https_context = ssl._create_unverified_context
Solution:
import sslssl._create_default_https_context = ssl._create_unverified_context
This solution works well, solves the same problem on google colab URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed
Solution:
import sslssl._create_default_https_context = ssl._create_unverified_context
I had a similar issue and @AlxZed's solution worked for me! Thanks 🚀
Once more, the infamous SSL: CERTIFICATE_VERIFY_FAILED error has struck. Do not be tempted by the minions of the dark side! Do not turn off SSL verification: it's a trap! It will deactivate your protection shield. Nowhere will you be safe.
Instead, close your eyes and listen to the force. Let it guide you to the light. Open a terminal and run the following command:
/Applications/Python\ 3.10/Install\ Certificates.command
This will install the certifi bundle of root certificates and solve the problem without destroying all security.
If you installed Python using MacPorts, then run sudo port install curl-ca-bundle instead.
Now you can open your eyes. Feel the gentle tickle of the force running through you.
