Fix parent typing

Author: dstansby

src/napari_matplotlib/base.py

@@ -1,6 +1,6 @@
 import os
 from pathlib import Path
-from typing import List, Tuple
+from typing import List, Optional, Tuple
 
 import napari
 from matplotlib.axes import Axes
@@ -43,7 +43,11 @@ class NapariMPLWidget(QWidget):
         List of currently selected napari layers.
     """
 
-    def __init__(self, napari_viewer: napari.viewer.Viewer, parent=None):
+    def __init__(
+        self,
+        napari_viewer: napari.viewer.Viewer,
+        parent: Optional[QWidget] = None,
+    ):
         super().__init__(parent=parent)
 
         self.viewer = napari_viewer

src/napari_matplotlib/histogram.py

@@ -1,13 +1,14 @@
+from typing import Optional
+
+import napari
 import numpy as np
+from qtpy import QWidget
 
 from .base import NapariMPLWidget
+from .util import Interval
 
 __all__ = ["HistogramWidget"]
 
-import napari
-
-from .util import Interval
-
 _COLORS = {"r": "tab:red", "g": "tab:green", "b": "tab:blue"}
 
 
@@ -19,7 +20,11 @@ class HistogramWidget(NapariMPLWidget):
     n_layers_input = Interval(1, 1)
     input_layer_types = (napari.layers.Image,)
 
-    def __init__(self, napari_viewer: napari.viewer.Viewer, parent=None):
+    def __init__(
+        self,
+        napari_viewer: napari.viewer.Viewer,
+        parent: Optional[QWidget] = None,
+    ):
         super().__init__(napari_viewer, parent=parent)
         self.add_single_axes()
         self.update_layers(None)

src/napari_matplotlib/scatter.py

@@ -4,6 +4,7 @@
 import numpy.typing as npt
 from magicgui import magicgui
 from magicgui.widgets import ComboBox
+from pyqt import QWidget
 
 from .base import NapariMPLWidget
 from .util import Interval
@@ -20,7 +21,11 @@ class ScatterBaseWidget(NapariMPLWidget):
     # the scatter is plotted as a 2D histogram
     _threshold_to_switch_to_histogram = 500
 
-    def __init__(self, napari_viewer: napari.viewer.Viewer, parent=None):
+    def __init__(
+        self,
+        napari_viewer: napari.viewer.Viewer,
+        parent: Optional[QWidget] = None,
+    ):
         super().__init__(napari_viewer, parent=parent)
 
         self.add_single_axes()
@@ -113,7 +118,11 @@ class FeaturesScatterWidget(ScatterBaseWidget):
         napari.layers.Vectors,
     )
 
-    def __init__(self, napari_viewer: napari.viewer.Viewer, parent=None):
+    def __init__(
+        self,
+        napari_viewer: napari.viewer.Viewer,
+        parent: Optional[QWidget] = None,
+    ):
         super().__init__(napari_viewer, parent=parent)
         self._key_selection_widget = magicgui(
             self._set_axis_keys,

src/napari_matplotlib/slice.py

@@ -1,8 +1,9 @@
-from typing import Any, Dict, Tuple
+from typing import Any, Dict, Optional, Tuple
 
 import napari
 import numpy as np
 import numpy.typing as npt
+from qtpy import QWidget
 from qtpy.QtWidgets import QComboBox, QHBoxLayout, QLabel, QSpinBox
 
 from .base import NapariMPLWidget
@@ -22,7 +23,11 @@ class SliceWidget(NapariMPLWidget):
     n_layers_input = Interval(1, 1)
     input_layer_types = (napari.layers.Image,)
 
-    def __init__(self, napari_viewer: napari.viewer.Viewer, parent=None):
+    def __init__(
+        self,
+        napari_viewer: napari.viewer.Viewer,
+        parent: Optional[QWidget] = None,
+    ):
         # Setup figure/axes
         super().__init__(napari_viewer, parent=parent)
         self.add_single_axes()