PyQT5 - 警告使用“退出”、“退出”或 Ctrl-D 退出 jupyter 笔记本中的应用程序

Question

I am currently learning PyQt5 and I have encountered this problem and solved it using the solution explained there, but since then, I am seeing this warning

An exception has occurred, use %tb to see the full traceback.

SystemExit: 0


/home/aditya/anaconda3/lib/python3.6/site-packages/IPython/core/interactiveshell.py:2971: UserWarning: To exit: use 
'exit', 'quit', or Ctrl-D.
warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)

Now, I don't know if this warning could be harmful or not. But how do I fix this?

Any help is appreciated. Thanks

Answer 1

you are facing this error because you are using in your code sys.exit() function. it is implemented from pyqt4 to pyqt5 which is latest one! i suggest you to do not use sys.exit instead of this you can use app = QApplication(sys.argv) app.exec_() app.quit() for terminating your window.