mapping function to vars
jahurt at hotmail.com
jahurt at hotmail.com
Thu Dec 9 12:44:55 EST 2004
Steven Bethard wrote:
> jahurt at hotmail.com wrote:
> > I need to map a function to several variables. I'm trying to use
map
> > and lambda to do this. Here's my attempt...
> >
> > #!/usr/bin/env python
> > from random import *
> >
> > [fee, fye, foe, fum] = map(lambda n: random(), range(4))
> >
> > print fee
> > print fye
> > print foe
> > print fum
> >
> > ...I'm essentially trying to map a function that takes no
parameters to
> > a group of variables. This works, but pychecker complains about
the
> > 'n' parameter. Is there a better way to do this? TIA
> >
>
> >>> import random
> >>> fee, fye, foe, fum = [random.random() for _ in range(4)]
> >>> fee, fye, foe, fum
> (0.39415235335694276, 0.43533547827112462, 0.47106288849970501,
> 0.87920678036897715)
>
> I don't know pychecker well enough, but I think it ignores variables
> named _, so I think you could also just switch your n with _.
> Personally, I find the list comprehension much more readable.
>
> Steve
Thanks! This is exactly what I was after :)
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