the usage of 'yield' keyword

Paul Rudin paul.nospam at rudin.co.uk
Wed Oct 14 09:42:02 CEST 2009


Peng Yu <pengyu.ut at gmail.com> writes:

> http://docs.python.org/reference/simple_stmts.html#grammar-token-yield_stmt
>
> The explanation of yield is not clear to me, as I don't know what a
> generator is. I see the following example using 'yield'. Could
> somebody explain how 'yield' works in this example? Thank you!
>
> def brange(limit):
>   i = 0
>   while i < limit:
>       yield i
>       i += 1

Try the sections on iterators, generators and generator expressions in
the tutorial: <http://docs.python.org/tutorial/classes.html#iterators>



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