[Feature] Remove Python 3.9 (#7235)

* remove python 3.9 support and code

* black

* more cli lint

* more linting

* more lint

* fix for tests

* docstring grammar police

* add lock to to build function to avoid async import race conditions

* grammar police

* lots more linting

* relock

cli/integration/test_integration_base_controller.py

@@ -9,7 +9,7 @@ from openbb_cli.session import Session
 # pylint: disable=unused-variable, redefined-outer-name
 
 
-class TestController(BaseController):
+class DummyController(BaseController):
     """Test controller for the BaseController."""
 
     PATH = "/test/"
@@ -22,7 +22,7 @@ class TestController(BaseController):
 def base_controller():
     """Set up the environment for each test function."""
     session = Session()  # noqa: F841
-    controller = TestController()
+    controller = DummyController()
     return controller
 
 
@@ -52,7 +52,7 @@ def test_check_path_invalid(base_controller):
 def test_parse_input(base_controller):
     """Test the parse_input method."""
     input_str = "/equity/price/help"
-    expected_output = ["", "equity", "price", "help"]
+    expected_output = ["equity", "price", "help"]
     assert (
         base_controller.parse_input(input_str) == expected_output
     ), "Input parsing failed"

cli/integration/test_integration_hub_service.py

@@ -44,7 +44,6 @@ def test_upload_routine_timeout(auth_header, routine_data):
     with patch(
         "requests.post", side_effect=requests.exceptions.Timeout
     ) as mocked_post:  # noqa: F841
-
         response = upload_routine(auth_header, **routine_data)
 
         assert response is None
@@ -56,7 +55,6 @@ def test_upload_routine_connection_error(auth_header, routine_data):
     with patch(
         "requests.post", side_effect=requests.exceptions.ConnectionError
     ) as mocked_post:  # noqa: F841
-
         response = upload_routine(auth_header, **routine_data)
 
         assert response is None