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Python Introducing Lists Using Lists Multidimensional Lists

Posted by Luke Tate
Luke Tate
Courses Plus Student 2,256 Points

Why does the "sum" have no definition? Is it built in code?

Is "sum" only used for format statements or can they be used in other statements as well?

2 Answers

Ave Nurme
Ave Nurme
20,907 Points

Hi Luke

You are correct - sum() is indeed a built-in function. Here's a list of Python's built-in functions: https://docs.python.org/3/library/functions.html

You can use sum() however you need. Here's a few examples for you:

# Example 1

lst = [2, 4, 5, 7, 9]
print(sum(lst))     # 27 (2+4+5+7+9)


# Example 2

lst = [1, 3, 2]
print(sum(lst, 10)) # 16 (1+3+2+10)

Hope this helps!

Luke Tate
PLUS
Luke Tate
Courses Plus Student 2,256 Points
Luke Tate
Luke Tate
Courses Plus Student 2,256 Points

Thanks! Ave!