Aug. 25, 2017
5 p.m.
xoviat wrote:
I agree with Nick that exceptions are the way to do things in Python
I don't agree that exceptions are the way to do "things" in general. They're the way to so *some* things. The question is whether the thing we're talking about is one of those things.
The reasoning behind this is that Python has in general adopted this approach (Nick is right that they would have used NotImplementedError for binary operations except for performance issues)
But only because NotImplemented is an out-of-band condition for operations in general. We're not talking about a general operation here, but a very specific one that only has a couple of possible results. -- Greg