Style/efficiency question using 'in'

[Joe Strout]

In article <3720B3B9.98BED320 at earth.ox.ac.uk>, Nick Belshaw
<nickb at earth.ox.ac.uk> wrote:

> If I do something like :-
> 
> ------------------
> def  func1():
>     return 1,2,3,4,5,6,7,8
> 
> for x in func1():
>     print x
> ------------------
> 
> it works as expected but is the use of a function in a loop undesirable?
> Is the function called once to build the loop or is it called each loop
> increment and therefore undesirable if there is much overhead?

It's called once to build the loop, as you can prove to yourself by
inserting "print 'spam'" into func1().

Cheers,
-- Joe

-- 
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|    Joseph J. Strout           Biocomputing -- The Salk Institute |
|    joe at strout.net             http://www.strout.net              |
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