https://mail.python.org/archives/list/docs@python.org/message/QT2W54W4ZGKU2R5H4OL2NWZGVYDS6L2A/
Mailman 3 [docs] [issue43003] Parts of the API will be removed in Python 4.0 ? - docs - python.org
https://mail.python.org/archives/list/docs@python.org/thread/LY2T3YBA2DBUYRD5NSIKEW3VVO3EMB55/?sort=date
Mailman 3 [issue43003] Parts of the API will be removed in Python 4.0 ? - docs - python.org