I've been thinking about this, and I'm +1 for the change now.

These structural typing issues for numbers come up regularly
(see also msg257088), and the functions are so simple and
self-explanatory that API-complexity does not really increase.


In general, I understand the argument that Python has become
too complex in some areas -- recently I had to go back to
Python-2.7 in order to understand a certain detail about
.pyc files (in 2.7 it was immediately obvious).


But here I see on such problems.