deviceMethodWidget.py: fix return types

kamzik3/gui/deviceMethodWidget.py

@@ -229,7 +229,7 @@ class MethodEnabledByAttributeWidget(DeviceMethodEnabledWidget):
         model_image=None,
         config=None,
         parent=None,
-    ):
+    ) -> None:
         self.external_device_attribute = external_device_attribute
         self._editable_widgets: List[int] = []
         super().__init__(
@@ -251,7 +251,7 @@ class MethodEnabledByAttributeWidget(DeviceMethodEnabledWidget):
                 else:
                     self.input_value.children()[index].setEnabled(True)  # type: ignore
 
-    def _find_editable_widgets(self):
+    def _find_editable_widgets(self) -> None:
         """Find the indices of the input fields that should be enabled/disabled"""
         if self.input_value is not None:
             for idx, child in enumerate(self.input_value.children()):
@@ -262,7 +262,7 @@ class MethodEnabledByAttributeWidget(DeviceMethodEnabledWidget):
                         if isinstance(grandchild, (QSpinBox, QDoubleSpinBox)):
                             self._editable_widgets.append(idx)
 
-    def init_signals(self):
+    def init_signals(self) -> None:
         """
         Connect the signals to the slots.
 
@@ -272,7 +272,7 @@ class MethodEnabledByAttributeWidget(DeviceMethodEnabledWidget):
         self.sig_control_changed.connect(self.control_changed)
 
     @pyqtSlot()
-    def slot_handle_configuration(self):
+    def slot_handle_configuration(self) -> None:
         DeviceWidget.slot_handle_configuration(self)
         self.input_not_ready_placeholder.setParent(None)
         layout = self.widget_holder.layout()