How to Add All Numbers in a List in Python
To add all numbers in a list, you can use the sum() function or a for loop in Python.
The following examples show how to add all numbers in a list using different methods.
Using sum() Function
We can use the sum() function to add all numbers in a list.
Suppose we have the following list:
# Declare list
numbers = [1, 2, 3, 4, 5]
# Add numbers
total = sum(numbers)
# Show sum of numbers
print(total)
Output: 👇️
15
In this example, we use the sum() function to calculate the sum of all numbers in the list.
Using For Loop
We can use a for loop to add all numbers in a list.
Suppose we have the same list as above.
We can use the following code to add all numbers in the list:
# Declare list
numbers = [1, 2, 3, 4, 5]
# Declare variable
total = 0
# Use for loop to add numbers
for num in numbers:
total += num
# Show result
print("The sum of all numbers in the list is:", total)
Output: 👇️
The sum of all numbers in the list is: 15
In this example, we use a for loop to iterate through the list and add each number to the total variable.