On Wednesday, July 15, 2015 at 6:56:10 AM UTC-4, Marko Rauhamaa wrote: > Ned Batchelder <n...@nedbatchelder.com>: > > > On Wednesday, July 15, 2015 at 2:44:55 AM UTC-4, Marko Rauhamaa wrote: > >> The other problem for tail call elimination is the requirement that > >> functions return None by default. Smooth tail call elimination would > >> require that Python leave the default return value unspecified. > > > > I don't understand this, can you explain more? Are you saying that the > > Python specification shouldn't specify what x becomes?: > > > > def who_knows(): > > pass > > > > x = who_knows() > > Yes, that's what I'm saying. The implementation would be free to assign > any value whatsoever to x.
I don't understand why that is helpful for TCE? Can you explain? How does specifying None make "smooth TCE" difficult? --Ned. -- https://mail.python.org/mailman/listinfo/python-list
