TypeError: connect() failed between SignalObj.sendMsg[object] and slotfunction()醉了

TypeError: connect() failed between SignalObj.sendMsg[object] and slotfunction()

醉了

python3.5里能正常运行，但是到python3.7下，就会包这样的错误

 

问题的原因是：@pyqtslot()修饰的问题：修饰错了，不如直接删了