Currying functions multiply all elements in an array.py

# To complete this Kata you need to make a function multiplyAll/multiply_all which takes an array of integers as an argument. This function must return another function, which takes a single integer as an argument and returns a new array.

# The returned array should consist of each of the elements from the first array multiplied by the integer.

# Example:

# multiply_all([1, 2, 3])(2); // => [2, 4, 6]

# You must not mutate the original array.

# Here's a nice Youtube video about currying, which might help you if this is new to you.

def multiply_all(arr):
    def a(num):
        return list(map(lambda x: x*num, arr))
    return a