quick question about generator.next()
aahz at pythoncraft.com
Wed Sep 4 23:44:55 CEST 2002
In article <mailman.1031153647.10654.python-list at python.org>,
Erik Price <erikprice at mac.com> wrote:
>If I have a generator object, the first value produced by the generator
>object does not actually get produced until the first time I call
>generator_object.next() , correct?
>In other words, simply instantiating the generator object doesn't
>"activate" the generator function, rather it just creates it -- only
>when the next() method is called does the generator's internal logic
Correct. I find that although technically inaccurate, it's a lot easier
to think of generators as functions that return iterator objects.
>(Where are generator objects getting their next() method from anyway...
>is it implicitly inherited behind the scenes when I use the "yield"
>keyword to turn a function into a generator?)
Generator objects conform to the iterator protocol.
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
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