Fix type checking CI issues

Author: rgerum

pylustrator/change_tracker.py

@@ -22,11 +22,10 @@
 import re
 import sys
 import traceback
-from typing import IO, Optional, Dict, Tuple, Callable, cast
+from typing import IO, Optional, Dict, Tuple, Callable
 from packaging import version
 
 import numpy as np
-import matplotlib
 import matplotlib as mpl
 import matplotlib.pyplot as plt
 from matplotlib import _pylab_helpers

pylustrator/components/plot_layout.py

@@ -1,6 +1,6 @@
 import os
 import numpy as np
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 if TYPE_CHECKING:
     from PyQt5 import QtCore, QtGui, QtWidgets
@@ -57,7 +57,9 @@ def __init__(self, *args):
         super().__init__(*args)
         self.setMouseTracking(True)
 
-    def event(self, e: QtCore.QEvent):
+    def event(self, e: Optional["QtCore.QEvent"]) -> bool:  # ty:ignore[invalid-method-override]
+        if e is None:
+            return super().event(e)
         if (
             e.type() == QtCore.QEvent.Type.KeyPress
             or e.type() == QtCore.QEvent.Type.KeyRelease

pylustrator/components/qitem_properties.py

@@ -20,7 +20,7 @@
 # along with Pylustrator. If not, see <http://www.gnu.org/licenses/>
 
 import os
-from typing import TYPE_CHECKING, Any, List, Optional, Tuple, cast, Literal
+from typing import TYPE_CHECKING, Any, List, Tuple, cast, Literal
 import numpy as np
 from packaging import version
 

pylustrator/exception_swallower.py

@@ -33,7 +33,7 @@ def __getattr__(self, item):
     def __call__(self, *args, **kwargs):
         return Dummy()
 
-    def __getitem__(self, item):
+    def __getitem__(self, item):
         return Dummy()
 
 
@@ -43,33 +43,33 @@ class SaveList(list):
     def __init__(self, target):
         list.__init__(self, target)
 
-    def __getitem__(self, item):
+    def __getitem__(self, item):  # ty:ignore[invalid-method-override]
         try:
             return list.__getitem__(self, item)
         except IndexError:
             return Dummy()
 
 
-class SaveDict(dict):
+class SaveDict(dict):
     """a dictionary that returns dummy objects when an invalid item is requested"""
 
     def __init__(self, target):
         dict.__init__(self, target)
 
-    def __getitem__(self, item):
+    def __getitem__(self, item):
         try:
             return dict.__getitem__(self, item)
         except KeyError:
             return Dummy()
 
 
-class SaveTuple(tuple):
+class SaveTuple(tuple):
     """a tuple that returns dummy objects when an invalid item is requested"""
 
     def __init__(self, target):
         tuple.__init__(self, target)  # ty:ignore[too-many-positional-arguments]
 
-    def __getitem__(self, item):
+    def __getitem__(self, item):  # ty:ignore[invalid-method-override]
         try:
             return tuple.__getitem__(self, item)
         except IndexError: