Python: sum() function

Last update on August 19 2022 21:50:45 (UTC/GMT +8 hours)

sum() function

The sum() function is used to get the sum of all items in an iterable.

Version:

(Python 3.2.5)

Syntax:

sum(iterable[, start])

Parameter:

Name	Description	Required / Optional
iterable	An iterable (list, tuple, dict etc) whose item's sum is to be computed.	Required
start	A value that is added to the return value.	Optional

Return value:

The sum of the given iterable.

Example: Python sum()

num = [3.5, 5, 2, -5]

# start parameter is not provided
numSum = sum(num)
print(numSum)

# start = 15
numSum = sum(num, 15)
print(numSum)

Output:

5.5
20.5

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