Fix typing issues

They were caused by upgrading to a higher mypy version, which found more mistakes

cura/BuildVolume.py

@@ -770,7 +770,7 @@ class BuildVolume(SceneNode):
 
         self._has_errors = len(self._error_areas) > 0
 
-        self._disallowed_areas = []  # type: List[Polygon]
+        self._disallowed_areas = []
         for extruder_id in result_areas:
             self._disallowed_areas.extend(result_areas[extruder_id])
         self._disallowed_areas_no_brim = []

cura/CuraApplication.py

@@ -421,7 +421,7 @@ class CuraApplication(QtApplication):
         # Add empty variant, material and quality containers.
         # Since they are empty, they should never be serialized and instead just programmatically created.
         # We need them to simplify the switching between materials.
-        self.empty_container = cura.Settings.cura_empty_instance_containers.empty_container  # type: EmptyInstanceContainer
+        self.empty_container = cura.Settings.cura_empty_instance_containers.empty_container
 
         self._container_registry.addContainer(
             cura.Settings.cura_empty_instance_containers.empty_definition_changes_container)

cura/Machines/MaterialManager.py

@@ -93,7 +93,7 @@ class MaterialManager(QObject):
                               self._container_registry.findContainersMetadata(type = "material") if
                               metadata.get("GUID")} # type: Dict[str, Dict[str, Any]]
 
-        self._material_group_map = dict()  # type: Dict[str, MaterialGroup]
+        self._material_group_map = dict()
                 
         # Map #1
         #    root_material_id -> MaterialGroup
@@ -120,7 +120,7 @@ class MaterialManager(QObject):
 
         # Map #1.5
         #    GUID -> material group list
-        self._guid_material_groups_map = defaultdict(list)  # type: Dict[str, List[MaterialGroup]]
+        self._guid_material_groups_map = defaultdict(list)
         for root_material_id, material_group in self._material_group_map.items():
             guid = material_group.root_material_node.getMetaDataEntry("GUID", "")
             self._guid_material_groups_map[guid].append(material_group)
@@ -202,7 +202,7 @@ class MaterialManager(QObject):
 
         # Map #4
         # "machine" -> "nozzle name" -> "buildplate name" -> "root material ID" -> specific material InstanceContainer
-        self._diameter_machine_nozzle_buildplate_material_map = dict()  # type: Dict[str, Dict[str, MaterialNode]]
+        self._diameter_machine_nozzle_buildplate_material_map = dict()
         for material_metadata in material_metadatas.values():
             self.__addMaterialMetadataIntoLookupTree(material_metadata)
 

cura/PrinterOutput/GenericOutputController.py

@@ -55,7 +55,7 @@ class GenericOutputController(PrinterOutputController):
                 self._preheat_hotends_timer.stop()
                 for extruder in self._preheat_hotends:
                     extruder.updateIsPreheating(False)
-                self._preheat_hotends = set()  # type: Set[ExtruderOutputModel]
+                self._preheat_hotends = set()
 
     def moveHead(self, printer: "PrinterOutputModel", x, y, z, speed) -> None:
         self._output_device.sendCommand("G91")
@@ -159,7 +159,7 @@ class GenericOutputController(PrinterOutputController):
     def _onPreheatHotendsTimerFinished(self) -> None:
         for extruder in self._preheat_hotends:
             self.setTargetHotendTemperature(extruder.getPrinter(), extruder.getPosition(), 0)
-        self._preheat_hotends = set() #type: Set[ExtruderOutputModel]
+        self._preheat_hotends = set()
 
     # Cancel any ongoing preheating timers, without setting back the temperature to 0
     # This can be used eg at the start of a print
@@ -167,7 +167,7 @@ class GenericOutputController(PrinterOutputController):
         if self._preheat_hotends_timer.isActive():
             for extruder in self._preheat_hotends:
                 extruder.updateIsPreheating(False)
-            self._preheat_hotends = set() #type: Set[ExtruderOutputModel]
+            self._preheat_hotends = set()
 
             self._preheat_hotends_timer.stop()
 

cura/Settings/ExtruderManager.py

@@ -132,7 +132,7 @@ class ExtruderManager(QObject):
                 elif current_extruder_trains:
                     object_extruders.add(current_extruder_trains[0].getId())
 
-            self._selected_object_extruders = list(object_extruders)  # type: List[Union[str, "ExtruderStack"]]
+            self._selected_object_extruders = list(object_extruders)
 
         return self._selected_object_extruders
 
@@ -141,7 +141,7 @@ class ExtruderManager(QObject):
     #   This will trigger a recalculation of the extruders used for the
     #   selection.
     def resetSelectedObjectExtruders(self) -> None:
-        self._selected_object_extruders = []  # type: List[Union[str, "ExtruderStack"]]
+        self._selected_object_extruders = []
         self.selectedObjectExtrudersChanged.emit()
 
     @pyqtSlot(result = QObject)

plugins/SimulationView/SimulationView.py

@@ -572,14 +572,14 @@ class SimulationView(CuraView):
             self._current_layer_jumps = job.getResult().get("jumps")
         self._controller.getScene().sceneChanged.emit(self._controller.getScene().getRoot())
 
-        self._top_layers_job = None  # type: Optional["_CreateTopLayersJob"]
+        self._top_layers_job = None
 
     def _updateWithPreferences(self) -> None:
         self._solid_layers = int(Application.getInstance().getPreferences().getValue("view/top_layer_count"))
         self._only_show_top_layers = bool(Application.getInstance().getPreferences().getValue("view/only_show_top_layers"))
         self._compatibility_mode = self._evaluateCompatibilityMode()
 
-        self.setSimulationViewType(int(float(Application.getInstance().getPreferences().getValue("layerview/layer_view_type"))));
+        self.setSimulationViewType(int(float(Application.getInstance().getPreferences().getValue("layerview/layer_view_type"))))
 
         for extruder_nr, extruder_opacity in enumerate(Application.getInstance().getPreferences().getValue("layerview/extruder_opacities").split("|")):
             try:

plugins/XmlMaterialProfile/XmlMaterialProfile.py

@@ -969,7 +969,7 @@ class XmlMaterialProfile(InstanceContainer):
                     machine_compatibility = cls._parseCompatibleValue(entry.text)
 
             for identifier in machine.iterfind("./um:machine_identifier", cls.__namespaces):
-                machine_id_list = product_id_map.get(identifier.get("product"), [])
+                machine_id_list = product_id_map.get(identifier.get("product", ""), [])
                 if not machine_id_list:
                     machine_id_list = cls.getPossibleDefinitionIDsFromName(identifier.get("product"))