[Python-Dev] Why is nb_inplace_power ternary? (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Fri Feb 9 00:08:32 CET 2007

Martin v. Löwis wrote:

It is the implementation of

foo **= bar (and that's its only use), so it ought to be binary.

Maybe it's so that a type can plug the same implementation into both nb_pow and nb_inplace_pow. Although the same effect could be achieved by just leaving nb_inplace_pow null, so I suppose that's not necessary.

Might we want to add an in-place version of the 3-arg pow() function one day? If so, leaving the third argument there could be useful.

-- Greg

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