I have problem with using the *mul* operator to multiply varibales

Question

I splited and converted string into int and i want use the mul operator to multiply directly. But they is an error when printing the last output.

from operator import mul 
# mulptiply user input
input_string = input("Enter numbers for summing :")

print("/n")
user_list = input_string.split()
print('list:', user_list)

# for loop to iterate 
for x in range(len(user_list)):
        user_list[x] = int(user_list[x]
                           
 # calc the mul of the list   
print("Multiplication of list =", mul(user_list))

Answer 1

The mul function takes 2 arguments at a time and returns their product. If you want to use mul to calculate the product of a list of numbers you can use functools.reduce to apply the function cumulatively to every list item for an aggregated result:

from functools import reduce
from operator import mul

user_list = [2, 3, 4]
print(reduce(mul, user_list)) # outputs 24

Beginning in Python 3.8 you can also use math.prod to calculate the product of a list of numbers directly.