Error Log

urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=54472): Max retries exceeded with url: /session (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>: Failed to establish a new connection: [Errno 111] Connection refused',))
self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
        extra_kw = {}
        if self.source_address:
            extra_kw['source_address'] = self.source_address
    
        if self.socket_options:
            extra_kw['socket_options'] = self.socket_options
    
        try:
            conn = connection.create_connection(
>               (self._dns_host, self.port), self.timeout, **extra_kw)

/usr/local/lib/python3.6/dist-packages/urllib3/connection.py:171: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

address = ('localhost', 54472), timeout = <object object at 0x7f7f4ce80580>
source_address = None, socket_options = [(6, 1, 1)]

    def create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
                          source_address=None, socket_options=None):
        """Connect to *address* and return the socket object.
    
        Convenience function.  Connect to *address* (a 2-tuple ``(host,
        port)``) and return the socket object.  Passing the optional
        *timeout* parameter will set the timeout on the socket instance
        before attempting to connect.  If no *timeout* is supplied, the
        global default timeout setting returned by :func:`getdefaulttimeout`
        is used.  If *source_address* is set it must be a tuple of (host, port)
        for the socket to bind as a source address before making the connection.
        An host of '' or port 0 tells the OS to use the default.
        """
    
        host, port = address
        if host.startswith('['):
            host = host.strip('[]')
        err = None
    
        # Using the value from allowed_gai_family() in the context of getaddrinfo lets
        # us select whether to work with IPv4 DNS records, IPv6 records, or both.
        # The original create_connection function always returns all records.
        family = allowed_gai_family()
    
        for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
            af, socktype, proto, canonname, sa = res
            sock = None
            try:
                sock = socket.socket(af, socktype, proto)
    
                # If provided, set socket level options before connecting.
                _set_socket_options(sock, socket_options)
    
                if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
                    sock.settimeout(timeout)
                if source_address:
                    sock.bind(source_address)
                sock.connect(sa)
                return sock
    
            except socket.error as e:
                err = e
                if sock is not None:
                    sock.close()
                    sock = None
    
        if err is not None:
>           raise err

/usr/local/lib/python3.6/dist-packages/urllib3/util/connection.py:79: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

address = ('localhost', 54472), timeout = <object object at 0x7f7f4ce80580>
source_address = None, socket_options = [(6, 1, 1)]

    def create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
                          source_address=None, socket_options=None):
        """Connect to *address* and return the socket object.
    
        Convenience function.  Connect to *address* (a 2-tuple ``(host,
        port)``) and return the socket object.  Passing the optional
        *timeout* parameter will set the timeout on the socket instance
        before attempting to connect.  If no *timeout* is supplied, the
        global default timeout setting returned by :func:`getdefaulttimeout`
        is used.  If *source_address* is set it must be a tuple of (host, port)
        for the socket to bind as a source address before making the connection.
        An host of '' or port 0 tells the OS to use the default.
        """
    
        host, port = address
        if host.startswith('['):
            host = host.strip('[]')
        err = None
    
        # Using the value from allowed_gai_family() in the context of getaddrinfo lets
        # us select whether to work with IPv4 DNS records, IPv6 records, or both.
        # The original create_connection function always returns all records.
        family = allowed_gai_family()
    
        for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
            af, socktype, proto, canonname, sa = res
            sock = None
            try:
                sock = socket.socket(af, socktype, proto)
    
                # If provided, set socket level options before connecting.
                _set_socket_options(sock, socket_options)
    
                if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
                    sock.settimeout(timeout)
                if source_address:
                    sock.bind(source_address)
>               sock.connect(sa)
E               ConnectionRefusedError: [Errno 111] Connection refused

/usr/local/lib/python3.6/dist-packages/urllib3/util/connection.py:69: ConnectionRefusedError

During handling of the above exception, another exception occurred:

self = <urllib3.connectionpool.HTTPConnectionPool object at 0x7f7f46e02400>
method = 'POST', url = '/session'
body = '{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "platformName": "any", "goog:chromeOpt...: [], "args": ["--no-sandbox", "enable-popup-blocking"]}, "loggingPrefs": {"browser": "ALL"}, "acceptSslCerts": true}}'
headers = {'Accept': 'application/json', 'Connection': 'keep-alive', 'Content-Type': 'application/json;charset=UTF-8', 'User-Agent': 'selenium/3.14.0 (python linux)'}
retries = Retry(total=0, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = <object object at 0x7f7f4ce80830>, pool_timeout = None
release_conn = True, chunked = False, body_pos = None
response_kw = {'request_url': 'http://localhost:54472/session'}, conn = None
release_this_conn = True, err = None, clean_exit = False
timeout_obj = <urllib3.util.timeout.Timeout object at 0x7f7f46e020b8>
is_new_proxy_conn = False

    def urlopen(self, method, url, body=None, headers=None, retries=None,
                redirect=True, assert_same_host=True, timeout=_Default,
                pool_timeout=None, release_conn=None, chunked=False,
                body_pos=None, **response_kw):
        """
            Get a connection from the pool and perform an HTTP request. This is the
            lowest level call for making a request, so you'll need to specify all
            the raw details.
    
            .. note::
    
               More commonly, it's appropriate to use a convenience method provided
               by :class:`.RequestMethods`, such as :meth:`request`.
    
            .. note::
    
               `release_conn` will only behave as expected if
               `preload_content=False` because we want to make
               `preload_content=False` the default behaviour someday soon without
               breaking backwards compatibility.
    
            :param method:
                HTTP request method (such as GET, POST, PUT, etc.)
    
            :param body:
                Data to send in the request body (useful for creating
                POST requests, see HTTPConnectionPool.post_url for
                more convenience).
    
            :param headers:
                Dictionary of custom headers to send, such as User-Agent,
                If-None-Match, etc. If None, pool headers are used. If provided,
                these headers completely replace any pool-specific headers.
    
            :param retries:
                Configure the number of retries to allow before raising a
                :class:`~urllib3.exceptions.MaxRetryError` exception.
    
                Pass ``None`` to retry until you receive a response. Pass a
                :class:`~urllib3.util.retry.Retry` object for fine-grained control
                over different types of retries.
                Pass an integer number to retry connection errors that many times,
                but no other types of errors. Pass zero to never retry.
    
                If ``False``, then retries are disabled and any exception is raised
                immediately. Also, instead of raising a MaxRetryError on redirects,
                the redirect response will be returned.
    
            :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
            :param redirect:
                If True, automatically handle redirects (status codes 301, 302,
                303, 307, 308). Each redirect counts as a retry. Disabling retries
                will disable redirect, too.
    
            :param assert_same_host:
                If ``True``, will make sure that the host of the pool requests is
                consistent else will raise HostChangedError. When False, you can
                use the pool on an HTTP proxy and request foreign hosts.
    
            :param timeout:
                If specified, overrides the default timeout for this one
                request. It may be a float (in seconds) or an instance of
                :class:`urllib3.util.Timeout`.
    
            :param pool_timeout:
                If set and the pool is set to block=True, then this method will
                block for ``pool_timeout`` seconds and raise EmptyPoolError if no
                connection is available within the time period.
    
            :param release_conn:
                If False, then the urlopen call will not release the connection
                back into the pool once a response is received (but will release if
                you read the entire contents of the response such as when
                `preload_content=True`). This is useful if you're not preloading
                the response's content immediately. You will need to call
                ``r.release_conn()`` on the response ``r`` to return the connection
                back into the pool. If None, it takes the value of
                ``response_kw.get('preload_content', True)``.
    
            :param chunked:
                If True, urllib3 will send the body using chunked transfer
                encoding. Otherwise, urllib3 will send the body using the standard
                content-length form. Defaults to False.
    
            :param int body_pos:
                Position to seek to in file-like body in the event of a retry or
                redirect. Typically this won't need to be set because urllib3 will
                auto-populate the value when needed.
    
            :param \\**response_kw:
                Additional parameters are passed to
                :meth:`urllib3.response.HTTPResponse.from_httplib`
            """
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = response_kw.get('preload_content', True)
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] <https://github.com/shazow/urllib3/issues/651>
        release_this_conn = release_conn
    
        # Merge the proxy headers. Only do this in HTTP. We have to copy the
        # headers dict so we can safely change it without those changes being
        # reflected in anyone else's copy.
        if self.scheme == 'http':
            headers = headers.copy()
            headers.update(self.proxy_headers)
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout
    
            is_new_proxy_conn = self.proxy is not None and not getattr(conn, 'sock', None)
            if is_new_proxy_conn:
                self._prepare_proxy(conn)
    
            # Make the request on the httplib connection object.
            httplib_response = self._make_request(conn, method, url,
                                                  timeout=timeout_obj,
                                                  body=body, headers=headers,
>                                                 chunked=chunked)

/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py:600: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connectionpool.HTTPConnectionPool object at 0x7f7f46e02400>
conn = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>
method = 'POST', url = '/session'
timeout = <urllib3.util.timeout.Timeout object at 0x7f7f46e020b8>
chunked = False
httplib_request_kw = {'body': '{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "platformName": "any", "goog:...tion': 'keep-alive', 'Content-Type': 'application/json;charset=UTF-8', 'User-Agent': 'selenium/3.14.0 (python linux)'}}
timeout_obj = <urllib3.util.timeout.Timeout object at 0x7f7f46e7aeb8>

    def _make_request(self, conn, method, url, timeout=_Default, chunked=False,
                      **httplib_request_kw):
        """
            Perform a request on a given urllib connection object taken from our
            pool.
    
            :param conn:
                a connection from one of our connection pools
    
            :param timeout:
                Socket timeout in seconds for the request. This can be a
                float or integer, which will set the same timeout value for
                the socket connect and the socket read, or an instance of
                :class:`urllib3.util.Timeout`, which gives you more fine-grained
                control over your timeouts.
            """
        self.num_requests += 1
    
        timeout_obj = self._get_timeout(timeout)
        timeout_obj.start_connect()
        conn.timeout = timeout_obj.connect_timeout
    
        # Trigger any extra validation we need to do.
        try:
            self._validate_conn(conn)
        except (SocketTimeout, BaseSSLError) as e:
            # Py2 raises this as a BaseSSLError, Py3 raises it as socket timeout.
            self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
            raise
    
        # conn.request() calls httplib.*.request, not the method in
        # urllib3.request. It also calls makefile (recv) on the socket.
        if chunked:
            conn.request_chunked(method, url, **httplib_request_kw)
        else:
>           conn.request(method, url, **httplib_request_kw)

/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py:354: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>
method = 'POST', url = '/session'
body = '{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "platformName": "any", "goog:chromeOpt...: [], "args": ["--no-sandbox", "enable-popup-blocking"]}, "loggingPrefs": {"browser": "ALL"}, "acceptSslCerts": true}}'
headers = {'Accept': 'application/json', 'Connection': 'keep-alive', 'Content-Type': 'application/json;charset=UTF-8', 'User-Agent': 'selenium/3.14.0 (python linux)'}

    def request(self, method, url, body=None, headers={}, *,
                encode_chunked=False):
        """Send a complete request to the server."""
>       self._send_request(method, url, body, headers, encode_chunked)

/usr/lib/python3.6/http/client.py:1239: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>
method = 'POST', url = '/session'
body = b'{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "platformName": "any", "goog:chromeOp...: [], "args": ["--no-sandbox", "enable-popup-blocking"]}, "loggingPrefs": {"browser": "ALL"}, "acceptSslCerts": true}}'
headers = {'Accept': 'application/json', 'Connection': 'keep-alive', 'Content-Type': 'application/json;charset=UTF-8', 'User-Agent': 'selenium/3.14.0 (python linux)'}
encode_chunked = False

    def _send_request(self, method, url, body, headers, encode_chunked):
        # Honor explicitly requested Host: and Accept-Encoding: headers.
        header_names = frozenset(k.lower() for k in headers)
        skips = {}
        if 'host' in header_names:
            skips['skip_host'] = 1
        if 'accept-encoding' in header_names:
            skips['skip_accept_encoding'] = 1
    
        self.putrequest(method, url, **skips)
    
        # chunked encoding will happen if HTTP/1.1 is used and either
        # the caller passes encode_chunked=True or the following
        # conditions hold:
        # 1. content-length has not been explicitly set
        # 2. the body is a file or iterable, but not a str or bytes-like
        # 3. Transfer-Encoding has NOT been explicitly set by the caller
    
        if 'content-length' not in header_names:
            # only chunk body if not explicitly set for backwards
            # compatibility, assuming the client code is already handling the
            # chunking
            if 'transfer-encoding' not in header_names:
                # if content-length cannot be automatically determined, fall
                # back to chunked encoding
                encode_chunked = False
                content_length = self._get_content_length(body, method)
                if content_length is None:
                    if body is not None:
                        if self.debuglevel > 0:
                            print('Unable to determine size of %r' % body)
                        encode_chunked = True
                        self.putheader('Transfer-Encoding', 'chunked')
                else:
                    self.putheader('Content-Length', str(content_length))
        else:
            encode_chunked = False
    
        for hdr, value in headers.items():
            self.putheader(hdr, value)
        if isinstance(body, str):
            # RFC 2616 Section 3.7.1 says that text default has a
            # default charset of iso-8859-1.
            body = _encode(body, 'body')
>       self.endheaders(body, encode_chunked=encode_chunked)

/usr/lib/python3.6/http/client.py:1285: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>
message_body = b'{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "platformName": "any", "goog:chromeOp...: [], "args": ["--no-sandbox", "enable-popup-blocking"]}, "loggingPrefs": {"browser": "ALL"}, "acceptSslCerts": true}}'

    def endheaders(self, message_body=None, *, encode_chunked=False):
        """Indicate that the last header line has been sent to the server.
    
            This method sends the request to the server.  The optional message_body
            argument can be used to pass a message body associated with the
            request.
            """
        if self.__state == _CS_REQ_STARTED:
            self.__state = _CS_REQ_SENT
        else:
            raise CannotSendHeader()
>       self._send_output(message_body, encode_chunked=encode_chunked)

/usr/lib/python3.6/http/client.py:1234: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>
message_body = b'{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "platformName": "any", "goog:chromeOp...: [], "args": ["--no-sandbox", "enable-popup-blocking"]}, "loggingPrefs": {"browser": "ALL"}, "acceptSslCerts": true}}'
encode_chunked = False

    def _send_output(self, message_body=None, encode_chunked=False):
        """Send the currently buffered request and clear the buffer.
    
            Appends an extra \\r\\n to the buffer.
            A message_body may be specified, to be appended to the request.
            """
        self._buffer.extend((b"", b""))
        msg = b"\r\n".join(self._buffer)
        del self._buffer[:]
>       self.send(msg)

/usr/lib/python3.6/http/client.py:1026: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>
data = b'POST /session HTTP/1.1\r\nHost: localhost:54472\r\nAccept-Encoding: identity\r\nContent-Length: 712\r\nAccept: appli...t-Type: application/json;charset=UTF-8\r\nUser-Agent: selenium/3.14.0 (python linux)\r\nConnection: keep-alive\r\n\r\n'

    def send(self, data):
        """Send `data' to the server.
            ``data`` can be a string object, a bytes object, an array object, a
            file-like object that supports a .read() method, or an iterable object.
            """
    
        if self.sock is None:
            if self.auto_open:
>               self.connect()

/usr/lib/python3.6/http/client.py:964: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>

    def connect(self):
>       conn = self._new_conn()

/usr/local/lib/python3.6/dist-packages/urllib3/connection.py:196: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
        extra_kw = {}
        if self.source_address:
            extra_kw['source_address'] = self.source_address
    
        if self.socket_options:
            extra_kw['socket_options'] = self.socket_options
    
        try:
            conn = connection.create_connection(
                (self._dns_host, self.port), self.timeout, **extra_kw)
    
        except SocketTimeout as e:
            raise ConnectTimeoutError(
                self, "Connection to %s timed out. (connect timeout=%s)" %
                (self.host, self.timeout))
    
        except SocketError as e:
            raise NewConnectionError(
>               self, "Failed to establish a new connection: %s" % e)
E           urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>: Failed to establish a new connection: [Errno 111] Connection refused

/usr/local/lib/python3.6/dist-packages/urllib3/connection.py:180: NewConnectionError

During handling of the above exception, another exception occurred:

request = <FixtureRequest for <Function 'test_user_sees_that_group_added_to_space_has_default_privileges[1oz_1op_deployed]'>>

    @pytest.mark.usefixtures(*function_args)
    def scenario_wrapper(request):
>       _execute_scenario(feature, scenario, request, encoding)

/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:227: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:189: in _execute_scenario
    _execute_step_function(request, scenario, step, step_func)
/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:130: in _execute_step_function
    step_func(**kwargs)
/usr/local/lib/python3.6/dist-packages/pytest_bdd/steps.py:162: in step_func
    result = request.getfixturevalue(func.__name__)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:428: in getfixturevalue
    return self._get_active_fixturedef(argname).cached_result[0]
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:453: in _get_active_fixturedef
    self._compute_fixture_value(fixturedef)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:524: in _compute_fixture_value
    fixturedef.execute(request=subrequest)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:795: in execute
    return hook.pytest_fixture_setup(fixturedef=self, request=request)
/usr/local/lib/python3.6/dist-packages/pluggy/__init__.py:617: in __call__
    return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/__init__.py:222: in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/__init__.py:216: in <lambda>
    firstresult=hook.spec_opts.get('firstresult'),
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:826: in pytest_fixture_setup
    result = call_fixture_func(fixturefunc, request, kwargs)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:718: in call_fixture_func
    res = fixturefunc(**kwargs)
tests/utils/bdd_utils.py:77: in wrapper
    return fun(*ba.args, **ba.kwargs)
tests/utils/bdd_utils.py:77: in wrapper
    return fun(*ba.args, **ba.kwargs)
tests/gui/steps/common/browser_creation.py:69: in create_instances_of_webdriver
    browser = driver(driver_kwargs)
/usr/local/lib/python3.6/dist-packages/pytest_selenium/pytest_selenium.py:98: in <lambda>
    return lambda kwargs=driver_kwargs: cls(**kwargs)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/chrome/webdriver.py:75: in __init__
    desired_capabilities=desired_capabilities)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py:156: in __init__
    self.start_session(capabilities, browser_profile)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py:251: in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py:318: in execute
    response = self.command_executor.execute(driver_command, params)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/remote_connection.py:375: in execute
    return self._request(command_info[0], url, body=data)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/remote_connection.py:397: in _request
    resp = self._conn.request(method, url, body=body, headers=headers)
/usr/local/lib/python3.6/dist-packages/urllib3/request.py:72: in request
    **urlopen_kw)
/usr/local/lib/python3.6/dist-packages/urllib3/request.py:150: in request_encode_body
    return self.urlopen(method, url, **extra_kw)
/usr/local/lib/python3.6/dist-packages/urllib3/poolmanager.py:322: in urlopen
    response = conn.urlopen(method, u.request_uri, **kw)
/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py:667: in urlopen
    **response_kw)
/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py:667: in urlopen
    **response_kw)
/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py:667: in urlopen
    **response_kw)
/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py:638: in urlopen
    _stacktrace=sys.exc_info()[2])
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = Retry(total=0, connect=None, read=None, redirect=None, status=None)
method = 'POST', url = '/session', response = None
error = NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>: Failed to establish a new connection: [Errno 111] Connection refused',)
_pool = <urllib3.connectionpool.HTTPConnectionPool object at 0x7f7f46e02400>
_stacktrace = <traceback object at 0x7f7f4819b288>

    def increment(self, method=None, url=None, response=None, error=None,
                  _pool=None, _stacktrace=None):
        """ Return a new Retry object with incremented retry counters.
    
            :param response: A response object, or None, if the server did not
                return a response.
            :type response: :class:`~urllib3.response.HTTPResponse`
            :param Exception error: An error encountered during the request, or
                None if the response was received successfully.
    
            :return: A new ``Retry`` object.
            """
        if self.total is False and error:
            # Disabled, indicate to re-raise the error.
            raise six.reraise(type(error), error, _stacktrace)
    
        total = self.total
        if total is not None:
            total -= 1
    
        connect = self.connect
        read = self.read
        redirect = self.redirect
        status_count = self.status
        cause = 'unknown'
        status = None
        redirect_location = None
    
        if error and self._is_connection_error(error):
            # Connect retry?
            if connect is False:
                raise six.reraise(type(error), error, _stacktrace)
            elif connect is not None:
                connect -= 1
    
        elif error and self._is_read_error(error):
            # Read retry?
            if read is False or not self._is_method_retryable(method):
                raise six.reraise(type(error), error, _stacktrace)
            elif read is not None:
                read -= 1
    
        elif response and response.get_redirect_location():
            # Redirect retry?
            if redirect is not None:
                redirect -= 1
            cause = 'too many redirects'
            redirect_location = response.get_redirect_location()
            status = response.status
    
        else:
            # Incrementing because of a server error like a 500 in
            # status_forcelist and a the given method is in the whitelist
            cause = ResponseError.GENERIC_ERROR
            if response and response.status:
                if status_count is not None:
                    status_count -= 1
                cause = ResponseError.SPECIFIC_ERROR.format(
                    status_code=response.status)
                status = response.status
    
        history = self.history + (RequestHistory(method, url, error, status, redirect_location),)
    
        new_retry = self.new(
            total=total,
            connect=connect, read=read, redirect=redirect, status=status_count,
            history=history)
    
        if new_retry.is_exhausted():
>           raise MaxRetryError(_pool, url, error or ResponseError(cause))
E           urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=54472): Max retries exceeded with url: /session (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f7f46e7a278>: Failed to establish a new connection: [Errno 111] Connection refused',))

/usr/local/lib/python3.6/dist-packages/urllib3/util/retry.py:398: MaxRetryError