"Mark Young" <marky1...@gmail.com> wrote
I searched the internet, and found someone suggest adding spaces
after each
number, which indeed works properly.
answer = 6 .__sub__(7 .__neg__())
answer
13
Why does this work? I don't even understand why python recognizes
that I'm
trying to access the numbers' __sub__ and __neg__ methods, I would
think
that the spaces would cause it to not work, but obviously it works
just
fine.
I assume that's a hard coded hack in python to avoid some ambiguity
with
decimal points. But I'm not sure. And I'd have thought it should be
possible
to disambiguate without the space...
But that's my guess. I've certainly never come across this "feature"
before.
Alan G.
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
