When creating a text editor with tkinter Text widget, I found that some Chinese punctuations cound't be input correctly.

When input "（", which is open parenthesis in Chinese, it behaves like a back space.
When input "）", close parenthesis in Chinese, it seems like a tab instead.
When input "；", semicolon in Chinese, it does nothing.

Then I tried input the same in IDLE 3.7.6 and the same happened. Also, the same happens in thonny, the python IDE. I suppose they all use Text widget.

Pitifully I don't think of a way to reproduce the issue without using Chinese input method.

Please let me know how to help with debugging. Thanks.