PEP 255: Simple Generators

Rainer Deyke root at rainerdeyke.com
Tue Jun 19 20:30:17 CEST 2001


"Neil Schemenauer" <nas at python.ca> wrote in message
news:mailman.992973455.16313.python-list at python.org...
> Rainer Deyke wrote:
> > def f():
> >   return
> >   yield 'Never reached.'
> >
> >
> > Is this function a generator?  Yes, but only if nobody removes the
seemingly
> > redundant 'yield' statement.
>
>     def f():
>         return x
>         x = 1
>
> Is "x" a local variable?  Most of your arguments apply to local
> variables as well.

Not really.  Using a local variable before it is assigned is just plain
wrong, whereas returning an empty iterator from a generator is likely to
become a common idiom.


--
Rainer Deyke (root at rainerdeyke.com)
Shareware computer games           -           http://rainerdeyke.com
"In ihren Reihen zu stehen heisst unter Feinden zu kaempfen" - Abigor





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