[issue39110] UserList-subclass Tree slicing changes the original list unexpectedly

2019-12-21 Thread Tarn Yeong Ching
Tarn Yeong Ching added the comment: GOD... I see. Thank you very much! -- ___ Python tracker <https://bugs.python.org/issue39110> ___ ___ Python-bugs-list mailin

[issue39110] UserList-subclass Tree slicing changes the original list unexpectedly

2019-12-20 Thread Tarn Yeong Ching
Tarn Yeong Ching added the comment: and more... It doesn't happen when Tree directly subclasses list. -- ___ Python tracker <https://bugs.python.org/issue39