[docs] [issue33666] os.errno gone AWOL

STINNER Victor <vstinner@redhat.com> added the comment:

os.errno as well as os.sys or os.abc is an implementation detail.

I agree but...

It can be changed without notice even in a bugfix release. Projects that depend on it are incorrect and should be fixed.

I don't think that it would hurt to document the removal of "os.errno" in "Porting to Python 3.7": https://docs.python.org/dev/whatsnew/3.7.html#changes-in-python-behavior Miro: are you volunteer to write such change? ---------- nosy: +vstinner _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue33666> _______________________________________