For review: PEP 308 - If-then-else expression

[Andrew Dalke]

Uncle Tim:
> > x = None if s.find("spam") else "eggs?"
> >
> > and the behaviour is exactly opposite.  I wonder how many
> > times people will make that mistake?
>
> Fewer than make the other mistake here <wink -- but I make it too>:  .find
> returns an index, not a bool, so the original leaves x at None if s begins

You assume I wasn't just writing an alternative to !s.startswith("spam")?

  :)

Yeah, I saw that problem, and I'm really, really happy that
  "spam" in s
is supported in 2.3

Who says I don't like change?

                    Andrew
                    dalke at dalkescientific.com