…-23722)

private names, such as `_Color__hue` and `_Color__hue_` are now normal attributes, and do not become members nor raise exceptions
(cherry picked from commit 7cf0aad)

Co-authored-by: Ethan Furman <[email protected]>

…-23748)

private names will raise a DeprecationWarning; in 3.10 they will become normal attributes

…-23722)

private names, such as `_Color__hue` and `_Color__hue_` are now normal attributes, and do not become members nor raise exceptions