code: def check_compatibility(self):
          
          message = ''
          value = True
          if PYQT4 or PYSIDE:
              message = _("You are working with Qt4 and in order to use this "
                          "plugin you need to have Qt5.<br><br>"
                          "Please update your Qt and/or PyQt packages to "
                          "meet this requirement.")
              value = False
          return value, message
docs: Check compatibility for PyQt and sWebEngine.