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Python Python Collections (2016, retired 2019) Tuples Packing

Nader Alharbi
Nader Alharbi
2,253 Points

Tuples packing

Hello everyone. I already answered and passed this question with this code below

def multiply(*numbers):
    total = 1
    for number in numbers:
        total = total * number
    return total

There was a hint given by the instructor, Slices (might) be helpful here.

My question is, how can i use the slice method to solve this problem? why did the instructor give me this hint?

1 Answer

Louise St. Germain
Louise St. Germain
19,424 Points

Hello Nader,

Good question! Your answer above is fine.

You could in theory have also used a recursive function with some slicing, which would follow this format:

def multiply(*numbers):
    # if tuple length is longer than one:
        # return first item in tuple * multiply(remaining items in the tuple - this would be a slice)
        # (the above line is the recursion since the function is calling itself again)
    # else, if there is just one item in the tuple, return it without doing anything to it.
    # (the above line is what will end the recursion.)

I hope this gives some ideas!

Nader Alharbi
Nader Alharbi
2,253 Points

Well explained. Thank you :)

Chris Freeman
Chris Freeman
Treehouse Moderator 68,404 Points

Here’s a slice version, though I don’t see how this a better the OP solution.

def multiply(*args):
    nums = list(args)
    while len(nums) > 1:
        nums[:2] = [nums[0] * nums[1]]
    return nums[0]