Is there a more elegant way to spell this?

[Jussi Piitulainen]

Neal Becker writes:
> Jussi Piitulainen wrote:
> > Neal Becker writes:
> > 
> >> Is there a more elegant way to spell this?
> >> 
> >> for x in [_ for _ in seq if some_predicate]:
> > 
> > If you mean some_predicate(_), then possibly this.
> > 
> > for x in filter(some_predicate, seq):
> >    handle(x)
> > 
> 
> I like this best, except probably even better:
> 
> for x in ifilter (some_predicate, seq):

That's in Python 2 and in itertools, I think. In Python 3, filter is a
built-in and returns a filter object.

>>> f = filter(None, map(int, '102030'))
>>> f
<filter object at 0x217d9d0>
>>> next(f)
1
>>> list(f)
[2, 3]
>>> list(f)
[]
>>>