PEP 255: Simple Generators, Revised Posting

[Tim Peters]

FYI, Python 2.2 will recognize that this is a generator after all:

def f():
    if 0:
        yield 1

A change to enable that was just checked in.  Other varieties of "if 0:"
glitchlets weren't helped, though -- just yield.

Just van Rossum suggested a prettier way to spell this:

def f():
    while 0:
        yield 1

I think that's especially nice because, where you're prototyping code and
need a generator stub (placeholder), you can flip between "0" and "1" to get
either an empty or unbounded iterator, two extremes that are good for
testing.