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Start your free trialMark Chesney
11,747 PointsIs there a generator expression solution to multiply() ?
Hi all. I'm working hard to become an intermediate Python programmer. I've received tons of love and support along the way. Thank you all :)
Question: would there be a generator expression approach to this code challenge? I've tried but I don't know where to get started.
Here's some background:
Regarding using
reduce
, one of the reasons it have been moved from a builtin function to being part of functools, is because it wasn't found to be superior to using a for loop. According to the Python 3 release notes:"Removed reduce(). Use functools.reduce() if you really need it; however, 99 percent of the time an explicit for loop is more readable."
Thank you all!
from functools import reduce
from operator import mul
def multiply(*args):
return reduce(mul, args)
2 Answers
Chris Freeman
Treehouse Moderator 68,441 PointsIn short, there is not one I know of. There has been discussion to add a sum()
analog called mult()
but it hasn't gotten traction.
If a short brew-your-own solution isn't viable via a loop (or yes functools.reduce()
), you can use numpy.prod if needed.
Mark Chesney
11,747 PointsOnce again, numpy
saves the day! :) much appreciated, as always, Chris