'Show Pointing Hand Cursor on error messages'

def mouseMoveEvent(self, event):

    text = self.get_line_at(event.pos())
    if get_error_match(text):
        if (not self.__cursor_changed):
            QApplication.setOverrideCursor(QCursor(Qt.PointingHandCursor))
            self.__cursor_changed = True
        event.accept()
        return
    if self.__cursor_changed:
        QApplication.restoreOverrideCursor()
        self.__cursor_changed = False
    self.QT_CLASS.mouseMoveEvent(self, event)
