Steps to reproduce:

• Left click
• Right click,. note error below

  """
  Repro:
  1. Run `python tests/python/test_event_exception.py`
  2. Right-click and nothing bad happens
  3. Left click to cause exception
  4. Right-click and see event exception
  """
  from PySide2 import QtWidgets, QtCore
  
  class Widget(QtWidgets.QWidget):
  
      def mouseReleaseEvent(self, event):
          print("\nmouseReleaseEvent :: event type: %r" % type(event))
          if event.button() == QtCore.Qt.LeftButton:
              raise Exception("FOO")
  
      def contextMenuEvent(self, event):
          print("contextMenuEvent :: event type: %r" % type(event))
          super(Widget, self).contextMenuEvent(event)
  
  app = QtWidgets.QApplication(["event_repro"])
  
  widget = Widget()
  widget.show()
  
  app.exec_()
  

   

The exception produced:

Traceback (most recent call last):
File "tests/python/test_event_exception.py", line 38, in mouseReleaseEvent
  raise Exception("FOO")
Exception: FOO

then causes the exception the next time right-click is pressed

Traceback (most recent call last):
  File "tests/python/test_event_exception.py", line 43, in contextMenuEvent
    super(Widget, self).contextMenuEvent(event)
TypeError: 'PySide2.QtWidgets.QWidget.contextMenuEvent' called with wrong argument types:
  PySide2.QtWidgets.QWidget.contextMenuEvent(PySide2.QtGui.QMouseEvent)
Supported signatures:
  PySide2.QtWidgets.QWidget.contextMenuEvent(PySide2.QtGui.QContextMenuEvent)