[Edu-sig] Re: ..., closures, ... other weirdness

[Kirby Urner]

> On the other hand, your example is probably simpler as a genuine,
> iterable, generator:
> 
> def weird():
>    x,y = 1,1
>    while True:
>      yield x
>      x,y = y, x+y
> 
> from itertools import islice
> wi = islice(weird(), 20)
> for i in wi: print i,
> 
> We use islice to prevent iterating forever, as this will happily give
> you every fibonnacci number until the end of time otherwise.
> 
> --Dethe

Yes, the generator syntax is clearly more straightforward than using
function attributes.  

As Martelli points out in '..in a Nutshell', anything making use of function
attributes heavily is more idiomatically (and easily) implemented using
class syntax.

Thanks for showing the islice trick.  Have you made a study of itertools?
I'd be interested in learning other such tips, if you've got the time.

Kirby