diff --git a/cura/Settings/GlobalStack.py b/cura/Settings/GlobalStack.py
index e2f7df41ea..517b45eb98 100755
--- a/cura/Settings/GlobalStack.py
+++ b/cura/Settings/GlobalStack.py
@@ -23,6 +23,7 @@ from .CuraContainerStack import CuraContainerStack
 if TYPE_CHECKING:
     from cura.Settings.ExtruderStack import ExtruderStack
 
+
 ##  Represents the Global or Machine stack and its related containers.
 #
 class GlobalStack(CuraContainerStack):
diff --git a/tests/Settings/TestGlobalStack.py b/tests/Settings/TestGlobalStack.py
index f8052aa4bb..0f1579f78b 100755
--- a/tests/Settings/TestGlobalStack.py
+++ b/tests/Settings/TestGlobalStack.py
@@ -15,6 +15,7 @@ import UM.Settings.SettingDefinition #To add settings to the definition.
 
 from cura.Settings.cura_empty_instance_containers import empty_container
 
+
 ##  Gets an instance container with a specified container type.
 #
 #   \param container_type The type metadata for the instance container.
@@ -24,22 +25,27 @@ def getInstanceContainer(container_type) -> InstanceContainer:
     container.setMetaDataEntry("type", container_type)
     return container
 
+
 class DefinitionContainerSubClass(DefinitionContainer):
     def __init__(self):
         super().__init__(container_id = "SubDefinitionContainer")
 
+
 class InstanceContainerSubClass(InstanceContainer):
     def __init__(self, container_type):
         super().__init__(container_id = "SubInstanceContainer")
         self.setMetaDataEntry("type", container_type)
 
+
 #############################START OF TEST CASES################################
 
+
 ##  Tests whether adding a container is properly forbidden.
 def test_addContainer(global_stack):
     with pytest.raises(InvalidOperationError):
         global_stack.addContainer(unittest.mock.MagicMock())
 
+
 ##  Tests adding extruders to the global stack.
 def test_addExtruder(global_stack):
     mock_definition = unittest.mock.MagicMock()
@@ -67,6 +73,7 @@ def test_addExtruder(global_stack):
     #         global_stack.addExtruder(unittest.mock.MagicMock())
     assert len(global_stack.extruders) == 2 #Didn't add the faulty extruder.
 
+
 #Tests setting user changes profiles to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong container type"),
@@ -77,6 +84,7 @@ def test_constrainUserChangesInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.userChanges = container
 
+
 #Tests setting user changes profiles.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "user"),
@@ -85,6 +93,7 @@ def test_constrainUserChangesInvalid(container, global_stack):
 def test_constrainUserChangesValid(container, global_stack):
     global_stack.userChanges = container #Should not give an error.
 
+
 #Tests setting quality changes profiles to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong container type"),
@@ -95,6 +104,7 @@ def test_constrainQualityChangesInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.qualityChanges = container
 
+
 #Test setting quality changes profiles.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "quality_changes"),
@@ -103,6 +113,7 @@ def test_constrainQualityChangesInvalid(container, global_stack):
 def test_constrainQualityChangesValid(container, global_stack):
     global_stack.qualityChanges = container #Should not give an error.
 
+
 #Tests setting quality profiles to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong container type"),
@@ -113,6 +124,7 @@ def test_constrainQualityInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.quality = container
 
+
 #Test setting quality profiles.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "quality"),
@@ -121,6 +133,7 @@ def test_constrainQualityInvalid(container, global_stack):
 def test_constrainQualityValid(container, global_stack):
     global_stack.quality = container #Should not give an error.
 
+
 #Tests setting materials to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong container type"),
@@ -131,6 +144,7 @@ def test_constrainMaterialInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.material = container
 
+
 #Test setting materials.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "material"),
@@ -139,6 +153,7 @@ def test_constrainMaterialInvalid(container, global_stack):
 def test_constrainMaterialValid(container, global_stack):
     global_stack.material = container #Should not give an error.
 
+
 #Tests setting variants to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong container type"),
@@ -149,6 +164,7 @@ def test_constrainVariantInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.variant = container
 
+
 #Test setting variants.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "variant"),
@@ -157,6 +173,7 @@ def test_constrainVariantInvalid(container, global_stack):
 def test_constrainVariantValid(container, global_stack):
     global_stack.variant = container #Should not give an error.
 
+
 #Tests setting definition changes profiles to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong container type"),
@@ -167,6 +184,7 @@ def test_constrainDefinitionChangesInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.definitionChanges = container
 
+
 #Test setting definition changes profiles.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "definition_changes"),
@@ -175,6 +193,7 @@ def test_constrainDefinitionChangesInvalid(container, global_stack):
 def test_constrainDefinitionChangesValid(container, global_stack):
     global_stack.definitionChanges = container #Should not give an error.
 
+
 #Tests setting definitions to invalid containers.
 @pytest.mark.parametrize("container", [
     getInstanceContainer(container_type = "wrong class"),
@@ -184,6 +203,7 @@ def test_constrainDefinitionInvalid(container, global_stack):
     with pytest.raises(InvalidContainerError): #Invalid container, should raise an error.
         global_stack.definition = container
 
+
 #Test setting definitions.
 @pytest.mark.parametrize("container", [
     DefinitionContainer(container_id = "DefinitionContainer"),
@@ -192,6 +212,7 @@ def test_constrainDefinitionInvalid(container, global_stack):
 def test_constrainDefinitionValid(container, global_stack):
     global_stack.definition = container #Should not give an error.
 
+
 ##  Tests whether deserialising completes the missing containers with empty ones. The initial containers are just the
 #   definition and the definition_changes (that cannot be empty after CURA-5281)
 def test_deserializeCompletesEmptyContainers(global_stack):
@@ -207,6 +228,7 @@ def test_deserializeCompletesEmptyContainers(global_stack):
             continue
         assert global_stack.getContainer(container_type_index) == empty_container #All others need to be empty.
 
+
 ##  Tests whether an instance container with the wrong type gets removed when deserialising.
 def test_deserializeRemovesWrongInstanceContainer(global_stack):
     global_stack._containers[cura.Settings.CuraContainerStack._ContainerIndexes.Quality] = getInstanceContainer(container_type = "wrong type")
@@ -217,6 +239,7 @@ def test_deserializeRemovesWrongInstanceContainer(global_stack):
 
     assert global_stack.quality == global_stack._empty_instance_container #Replaced with empty.
 
+
 ##  Tests whether a container with the wrong class gets removed when deserialising.
 def test_deserializeRemovesWrongContainerClass(global_stack):
     global_stack._containers[cura.Settings.CuraContainerStack._ContainerIndexes.Quality] = DefinitionContainer(container_id = "wrong class")
@@ -227,6 +250,7 @@ def test_deserializeRemovesWrongContainerClass(global_stack):
 
     assert global_stack.quality == global_stack._empty_instance_container #Replaced with empty.
 
+
 ##  Tests whether an instance container in the definition spot results in an error.
 def test_deserializeWrongDefinitionClass(global_stack):
     global_stack._containers[cura.Settings.CuraContainerStack._ContainerIndexes.Definition] = getInstanceContainer(container_type = "definition") #Correct type but wrong class.
@@ -235,6 +259,7 @@ def test_deserializeWrongDefinitionClass(global_stack):
         with pytest.raises(UM.Settings.ContainerStack.InvalidContainerStackError): #Must raise an error that there is no definition container.
             global_stack.deserialize("")
 
+
 ##  Tests whether an instance container with the wrong type is moved into the correct slot by deserialising.
 def test_deserializeMoveInstanceContainer(global_stack):
     global_stack._containers[cura.Settings.CuraContainerStack._ContainerIndexes.Quality] = getInstanceContainer(container_type = "material") #Not in the correct spot.
@@ -246,6 +271,7 @@ def test_deserializeMoveInstanceContainer(global_stack):
     assert global_stack.quality == empty_container
     assert global_stack.material != empty_container
 
+
 ##  Tests whether a definition container in the wrong spot is moved into the correct spot by deserialising.
 def test_deserializeMoveDefinitionContainer(global_stack):
     global_stack._containers[cura.Settings.CuraContainerStack._ContainerIndexes.Material] = DefinitionContainer(container_id = "some definition") #Not in the correct spot.
@@ -256,6 +282,7 @@ def test_deserializeMoveDefinitionContainer(global_stack):
     assert global_stack.material == empty_container
     assert global_stack.definition != empty_container
 
+
 ##  Tests whether getProperty properly applies the stack-like behaviour on its containers.
 def test_getPropertyFallThrough(global_stack):
     #A few instance container mocks to put in the stack.
@@ -298,6 +325,7 @@ def test_getPropertyFallThrough(global_stack):
     global_stack.userChanges = mock_layer_heights[container_indexes.UserChanges]
     assert global_stack.getProperty("layer_height", "value") == container_indexes.UserChanges
 
+
 ##  In definitions, test whether having no resolve allows us to find the value.
 def test_getPropertyNoResolveInDefinition(global_stack):
     value = unittest.mock.MagicMock() #Just sets the value for bed temperature.
@@ -307,6 +335,7 @@ def test_getPropertyNoResolveInDefinition(global_stack):
         global_stack.definition = value
     assert global_stack.getProperty("material_bed_temperature", "value") == 10 #No resolve, so fall through to value.
 
+
 ##  In definitions, when the value is asked and there is a resolve function, it must get the resolve first.
 def test_getPropertyResolveInDefinition(global_stack):
     resolve_and_value = unittest.mock.MagicMock() #Sets the resolve and value for bed temperature.
@@ -316,6 +345,7 @@ def test_getPropertyResolveInDefinition(global_stack):
         global_stack.definition = resolve_and_value
     assert global_stack.getProperty("material_bed_temperature", "value") == 7.5 #Resolve wins in the definition.
 
+
 ##  In instance containers, when the value is asked and there is a resolve function, it must get the value first.
 def test_getPropertyResolveInInstance(global_stack):
     container_indices = cura.Settings.CuraContainerStack._ContainerIndexes
@@ -342,6 +372,7 @@ def test_getPropertyResolveInInstance(global_stack):
     global_stack.userChanges = instance_containers[container_indices.UserChanges]
     assert global_stack.getProperty("material_bed_temperature", "value") == 5
 
+
 ##  Tests whether the value in instances gets evaluated before the resolve in definitions.
 def test_getPropertyInstancesBeforeResolve(global_stack):
     value = unittest.mock.MagicMock() #Sets just the value.
@@ -356,6 +387,7 @@ def test_getPropertyInstancesBeforeResolve(global_stack):
 
     assert global_stack.getProperty("material_bed_temperature", "value") == 10
 
+
 ##  Tests whether the hasUserValue returns true for settings that are changed in the user-changes container.
 def test_hasUserValueUserChanges(global_stack):
     container = unittest.mock.MagicMock()
@@ -367,6 +399,7 @@ def test_hasUserValueUserChanges(global_stack):
     assert not global_stack.hasUserValue("infill_sparse_density")
     assert not global_stack.hasUserValue("")
 
+
 ##  Tests whether the hasUserValue returns true for settings that are changed in the quality-changes container.
 def test_hasUserValueQualityChanges(global_stack):
     container = unittest.mock.MagicMock()
@@ -378,6 +411,7 @@ def test_hasUserValueQualityChanges(global_stack):
     assert not global_stack.hasUserValue("infill_sparse_density")
     assert not global_stack.hasUserValue("")
 
+
 ##  Tests whether a container in some other place on the stack is correctly not recognised as user value.
 def test_hasNoUserValue(global_stack):
     container = unittest.mock.MagicMock()
@@ -387,21 +421,25 @@ def test_hasNoUserValue(global_stack):
 
     assert not global_stack.hasUserValue("layer_height") #However this container is quality, so it's not a user value.
 
+
 ##  Tests whether inserting a container is properly forbidden.
 def test_insertContainer(global_stack):
     with pytest.raises(InvalidOperationError):
         global_stack.insertContainer(0, unittest.mock.MagicMock())
 
+
 ##  Tests whether removing a container is properly forbidden.
 def test_removeContainer(global_stack):
     with pytest.raises(InvalidOperationError):
         global_stack.removeContainer(unittest.mock.MagicMock())
 
+
 ##  Tests whether changing the next stack is properly forbidden.
 def test_setNextStack(global_stack):
     with pytest.raises(InvalidOperationError):
         global_stack.setNextStack(unittest.mock.MagicMock())
 
+
 ##  Tests setting properties directly on the global stack.
 @pytest.mark.parametrize("key,              property,         value", [
                         ("layer_height",    "value",          0.1337),
@@ -415,6 +453,7 @@ def test_setPropertyUser(key, property, value, global_stack):
     user_changes.getMetaDataEntry = unittest.mock.MagicMock(return_value = "user")
     global_stack.userChanges = user_changes
 
-    global_stack.setProperty(key, property, value) #The actual test.
+    global_stack.setProperty(key, property, value)  # The actual test.
 
-    global_stack.userChanges.setProperty.assert_called_once_with(key, property, value, None, False) #Make sure that the user container gets a setProperty call.
\ No newline at end of file
+    # Make sure that the user container gets a setProperty call.
+    global_stack.userChanges.setProperty.assert_called_once_with(key, property, value, None, False)
\ No newline at end of file