While we believe that this content benefits our community, we have not yet thoroughly reviewed it. If you have any suggestions for improvements, please let us know by clicking the “report an issue“ button at the bottom of the tutorial.
Python sum() function is used to get the sum of numbers of an iterable.
Python sum() function syntax is:
start is an optional number with default value of 0. If start is provided, then the sum of start and all the numbers in the iterable is returned.
s = sum([1, 2, 3]) print(s) s = sum([1, 2, 3], 10) print(s)
Note that sum() method doesn’t take keyword arguments, so if we write
sum([1, 2, 3], start=10) then it will throw exception as
TypeError: sum() takes no keyword arguments.
Since sum accepts iterable as argument, we can pass tuple, bytes of numbers too.
s = sum(bytes([1, 2])) print(s) s = sum(bytearray([1, 2]), 10) print(s) # sum of integers in different formats, tuple of numbers s = sum((1, 0b11, 0o17, 0xFF)) print(s) s = sum((1, 0b11, 0o17, 0xFF), 0xF) print(s)
3 13 274 289
s = sum([1.5, 2.5, 3]) print(s)
7.0 If you want to add floating point values with extended precision, you can use
sum() function works with complex numbers too.
s = sum([1 + 2j, 3 + 4j]) print(s) s = sum([1 + 2j, 3 + 4j], 2 + 2j) print(s) s = sum([1 + 2j, 2, 1.5 - 2j]) print(s)
(4+6j) (6+8j) (4.5+0j)
You can checkout complete python script and more Python examples from our GitHub Repository.
Reference: Official Documentation
Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in our Questions & Answers section, find tutorials and tools that will help you grow as a developer and scale your project or business, and subscribe to topics of interest.Sign up
Click below to sign up and get $100 of credit to try our products over 60 days!