Looking up "https://pypi.python.org/pypi/pip/json" in the cache
No cache entry available
Starting new HTTPS connection (1): pypi.python.org
There was an error checking the latest version of pip
Traceback (most recent call last):
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connection.py", line 142, in _new_conn
    (self.host, self.port), self.timeout, **extra_kw)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py", line 98, in create_connection
    raise err
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py", line 88, in create_connection
    sock.connect(sa)
OSError: [Errno 101] Network is unreachable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py", line 595, in urlopen
    chunked=chunked)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py", line 352, in _make_request
    self._validate_conn(conn)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py", line 831, in _validate_conn
    conn.connect()
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connection.py", line 254, in connect
    conn = self._new_conn()
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connection.py", line 151, in _new_conn
    self, "Failed to establish a new connection: %s" % e)
pip._vendor.requests.packages.urllib3.exceptions.NewConnectionError: <pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fafee68ef28>: Failed to establish a new connection: [Errno 101] Network is unreachable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/adapters.py", line 423, in send
    timeout=timeout
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py", line 640, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py", line 287, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
pip._vendor.requests.packages.urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /pypi/pip/json (Caused by NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fafee68ef28>: Failed to establish a new connection: [Errno 101] Network is unreachable',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/utils/outdated.py", line 126, in pip_version_check
    headers={"Accept": "application/json"},
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/sessions.py", line 488, in get
    return self.request('GET', url, **kwargs)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/download.py", line 386, in request
    return super(PipSession, self).request(method, url, *args, **kwargs)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/sessions.py", line 475, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/sessions.py", line 596, in send
    r = adapter.send(request, **kwargs)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/cachecontrol/adapter.py", line 47, in send
    resp = super(CacheControlAdapter, self).send(request, **kw)
  File "/home/carljm/virtualenvs/env36/lib/python3.6/site-packages/pip/_vendor/requests/adapters.py", line 487, in send
    raise ConnectionError(e, request=request)
pip._vendor.requests.exceptions.ConnectionError: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /pypi/pip/json (Caused by NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fafee68ef28>: Failed to establish a new connection: [Errno 101] Network is unreachable',))