Table of Contents
In this tutorial, we will learn about the Python sum() method with the help of examples.
sum() function adds the items of an iterable and returns the sum.
marks = [65, 71, 68, 74, 61] # find sum of all marks total_marks = sum(marks) print(total_marks) # Output: 339
1. sum() Syntax
The syntax of the
sum() function is:
sum() function adds start and items of the given iterable from left to right.
2. sum() Parameters
- iterable – iterable (list, tuple, dict, etc). The items of the iterable should be numbers.
- start (optional) – this value is added to the sum of items of the iterable. The default value of start is 0 (if omitted)
3. sum() Return Value
sum() returns the sum of start and items of the given iterable.
4. Example: Working of Python sum()
numbers = [2.5, 3, 4, -5] # start parameter is not provided numbers_sum = sum(numbers) print(numbers_sum) # start = 10 numbers_sum = sum(numbers, 10) print(numbers_sum)
If you need to add floating-point numbers with exact precision, then you should use
If you need to concatenate items of the given iterable (items must be strings), then you can use the
Visit this page to learn about, Python join() Method