Python: Multiply all the items in a list

Python List: Exercise-2 with Solution

Write a Python program to multiply all the items in a list.

Pictorial Presentation:

Python: Multiply all the items in a list

Sample Solution:

Python Code:

def multiply_list(items):
    tot = 1
    for x in items:
        tot *= x
    return tot

Sample Output:



In the above exercise -

def multiply_list(items):  -> This line defines a function called “multiply_list” that takes a single argument items. This function will be used to calculate the product of all the numbers in the items list.

  • tot = 1  -> This line initializes a variable called tot to 1. This will be used to keep track of the running total of the product of the numbers in the list.
  • for x in items:  -> This line starts a loop that will iterate over each element in the items list, one at a time.
  • tot *= x  -> This line multiplies the current value of x by the tot variable. This is equivalent to the shorter form tot = tot * x.
  • return tot  -> This line returns the final value of the tot variable after the loop has finished. This is the product of all the numbers in the items list.

print(multiply_list([1,2,-8]))  -> This line calls the multiply_list() function and passes in the list [1,2,-8]. The resulting product is then printed to the console using the print function.


Flowchart: Multiply all the items in a list

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to sum all the items in a list.
Next: Write a Python program to get the largest number from a list.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

Follow us on Facebook and Twitter for latest update.

Python: Tips of the Day

Decapitalizes the first letter of a string:


def tips_decapitalize(s, upper_rest=False):
  return s[:1].lower() + (s[1:].upper() if upper_rest else s[1:])
print(tips_decapitalize('PythonTips', True)) 




We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook