Generator and return value

[Frank Millman]

Hi all

It would be nice to write a generator in such a way that, in addition to 
'yielding' each value, it performs some additional work and then 'returns' a 
final result at the end.

>From Python 3.3, anything 'returned' becomes the value of the StopIteration 
exception, so it is possible, but not pretty.

Instead of -
    my_gen = generator()
    for item in my_gen():
        do_something(item)
    [how to get the final result?]

you can write -
    my_gen = generator()
    while True:
        try:
            item = next(my_gen())
            do_something(item)
        except StopIteration as e:
            final_result = e.value

Is this the best way to achieve it, or is there a nicer alternative?

Thanks

Frank Millman