v3 is current, though str.format() was added in late v2 releases for compatibility (printf style interpolation is to be deprecated some time but I'll use it below as an example...). Here's the decorated version as suggested:
Edit: trimmed some code 
def rubyyielder(gen):
    def wrapped_gen(block):
        for elem in gen():
            block(elem)
    return wrapped_gen

@rubyyielder
def test():
    print("In test")
    yield 1
    print("back in test")
    yield 2

@test
def _(a):
    print("You are in block %s" % a)

[download]
I don't really see a win with this style, though, over giving test a parameter, and just using standard function calls (I had a little play with coroutines on the way but that's really overkill for this).

In reply to Re^5: RFC: Simulating Ruby's "yield" and "blocks" in Perl (Python) by MonkOfAnotherSect
in thread RFC: Simulating Ruby's "yield" and "blocks" in Perl by LanX

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