Fix flake 8 warnings

Author: MDUYN

investing_algorithm_framework/app/app.py

@@ -325,7 +325,10 @@ def _initialize_app_for_backtest(
         configuration_service.add_value(
             DATABASE_DIRECTORY_PATH,
             os.path.join(
-                configuration_service.config[RESOURCE_DIRECTORY], "backtest_databases"
+                configuration_service.config[
+                    RESOURCE_DIRECTORY
+                ],
+                "backtest_databases"
             )
         )
 

investing_algorithm_framework/create_app.py

@@ -3,7 +3,7 @@
 
 from .app import App
 from .dependency_container import setup_dependency_container
-from .domain import APP_MODE, AppMode
+from .domain import AppMode
 
 logger = logging.getLogger("investing_algorithm_framework")
 

tests/resources/test_base.py

@@ -153,7 +153,9 @@ class FlaskTestBase(FlaskTestCase):
     def create_app(self):
         self.resource_directory = os.path.dirname(__file__)
         self.iaf_app: App = create_app(
-            {RESOURCE_DIRECTORY: self.resource_directory}, web=True
+            {
+                RESOURCE_DIRECTORY: self.resource_directory
+            }
         )
         self.market_service.balances = self.external_balances
         self.market_service.orders = self.external_orders