AttributeError: 'NoneType' object has no attribute 'spaces_header_list'
request = <FixtureRequest for <Function 'test_user_sees_size_statistics_after_turning_on_size_statistics[1oz_1op_deployed]'>>

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

/usr/local/lib/python3.8/dist-packages/pytest_bdd/scenario.py:227: 
(26 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c2539310>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c4d22dc0>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c262b1f0>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c25e32b0>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c5049b80>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c2508310>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c3709190>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)

test setup failure
self = <urllib3.connection.VerifiedHTTPSConnection object at 0x7fe1c4957c10>

    def _new_conn(self):
        """ Establish a socket connection and set nodelay settings on it.
    
            :return: New socket connection.
            """
(505 more lines...)