I get CERTIFICATE_VERIFY_FAILED when I try to install the spaCy English language model

Question

I'm running OS X El Capitan on Python 3.5.2 via Anaconda and have spaCy 0.101.0.

I'm trying to install the spaCy English language model using python -m spacy.en.download. However when I do that, I get an error that says urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)>. The complete Traceback is as follows:

Traceback (most recent call last):
  File "/Users/bsherman/anaconda/lib/python3.5/urllib/request.py", line 1254, in do_open
    h.request(req.get_method(), req.selector, req.data, headers)
  File "/Users/bsherman/anaconda/lib/python3.5/http/client.py", line 1106, in request
    self._send_request(method, url, body, headers)
  File "/Users/bsherman/anaconda/lib/python3.5/http/client.py", line 1151, in _send_request
    self.endheaders(body)
  File "/Users/bsherman/anaconda/lib/python3.5/http/client.py", line 1102, in endheaders
    self._send_output(message_body)
  File "/Users/bsherman/anaconda/lib/python3.5/http/client.py", line 934, in _send_output
    self.send(msg)
  File "/Users/bsherman/anaconda/lib/python3.5/http/client.py", line 877, in send
    self.connect()
  File "/Users/bsherman/anaconda/lib/python3.5/http/client.py", line 1260, in connect
    server_hostname=server_hostname)
  File "/Users/bsherman/anaconda/lib/python3.5/ssl.py", line 377, in wrap_socket
    _context=self)
  File "/Users/bsherman/anaconda/lib/python3.5/ssl.py", line 752, in __init__
    self.do_handshake()
  File "/Users/bsherman/anaconda/lib/python3.5/ssl.py", line 988, in do_handshake
    self._sslobj.do_handshake()
  File "/Users/bsherman/anaconda/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)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/bsherman/anaconda/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/Users/bsherman/anaconda/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/spacy/en/download.py", line 13, in <module>
    plac.call(main)
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/plac_core.py", line 328, in call
    cmd, result = parser.consume(arglist)
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/plac_core.py", line 207, in consume
    return cmd, self.func(*(args + varargs + extraopts), **kwargs)
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/spacy/en/download.py", line 9, in main
    download('en', force)
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/spacy/download.py", line 24, in download
    package = sputnik.install(about.__title__, about.__version__, about.__models__[lang])
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/sputnik/__init__.py", line 37, in install
    index.update()
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/sputnik/index.py", line 84, in update
    index = json.load(session.open(request, 'utf8'))
  File "/Users/bsherman/anaconda/lib/python3.5/site-packages/sputnik/session.py", line 43, in open
    r = self.opener.open(request)
  File "/Users/bsherman/anaconda/lib/python3.5/urllib/request.py", line 466, in open
    response = self._open(req, data)
  File "/Users/bsherman/anaconda/lib/python3.5/urllib/request.py", line 484, in _open
    '_open', req)
  File "/Users/bsherman/anaconda/lib/python3.5/urllib/request.py", line 444, in _call_chain
    result = func(*args)
  File "/Users/bsherman/anaconda/lib/python3.5/urllib/request.py", line 1297, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "/Users/bsherman/anaconda/lib/python3.5/urllib/request.py", line 1256, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)>

Answer 1

Run in terminal:

/Applications/Python 3.5.2/Install Certificates.command

or update certifi package via pip