Newbie: list comprehension troubles..
bruno.42.desthuilliers at websiteburo.invalid
Mon Aug 24 10:54:31 CEST 2009
mm a écrit :
> Hi, I'm trying to replace this...
> # this works but there must be a more pythonic way, right?
> tlist = 
> for obj in self.objs:
> t = obj.intersect(ray)
> if (t != None):
hint 1 : this is Python, you don't need parens around conditionals.
hint 2 : None is a singleton, so the usual idiom is to test for identity
('is') instead of equality ('==')
IOW, make this line:
if t is not None:
> with a list comprehension- can it be done?
See other answers here. As far as I'm concerned, while being a great fan
of list comps etc, I'd stick with the plain old for loop here - much
more readable if nothing else.
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