Table of Contents
In this tutorial, we will learn about the Python sum() method with the help of examples.
The sum() function adds the items of an iterable and returns the sum.
Example
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(iterable, start)
The 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)
Output
4.5 14.5
If you need to add floating-point numbers with exact precision, then you should use math.fsum(iterable) instead.
If you need to concatenate items of the given iterable (items must be strings), then you can use the join() method.
'string'.join(sequence)
Visit this page to learn about, Python join() Method
Related posts:
Python Set isdisjoint()
Python Data Structures and Algorithms - Benjamin Baka
Python for Loop
Python Program to Check the File Size
Python Program to Count the Occurrence of an Item in a List
Python Set difference()
Python Program to Get the Full Path of the Current Working Directory
Python delattr()
Python Program to Iterate Through Two Lists in Parallel
Python Shallow Copy and Deep Copy
Python Program to Reverse a Number
Python String istitle()
Python Generators
Python String format()
How to Get Started With Python?
Applied Text Analysis with Python - Benjamin Benfort & Rebecca Bibro & Tony Ojeda
Python break and continue
Python Dictionary keys()
Python Program to Return Multiple Values From a Function
Python open()
Python exec()
Python Program to Parse a String to a Float or Int
Python Program to Find All File with .txt Extension Present Inside a Directory
Python hash()
Python bytes()
Python Recursion
Python Get Current time
Python Program to Print all Prime Numbers in an Interval
Python String join()
Python Program to Check if a Number is Positive, Negative or 0
Python Program to Get File Creation and Modification Date
Python classmethod()
