StopIteration in the if clause of a generator expression

[Steven Bethard]

Raymond Hettinger wrote:
> [Steven Bethard]
> 
>>and I often find myself alternating
>>between the two when I can't decide which one seems more Pythonic.
> 
> Both are pythonic.
> 
> Use a genexp when you need a generator
> and use a listcomp when you need a list.

So do I read this right in preferring
     [<x> for <y> in <z>]
over
     list(<x> for <y> in <z>)
?

STeVe