Python sum() function

Python sum() function

The sum() function in python sums start and the items of an iterable from left to right and returns the total. 

Syntax

sum(iterable[, start])

Parameter

iterable: This parameter represents the sequence to sum.

start: It is optional parameter that represents a value that is added to the return value

Return

This function returns the sum of all items in an iterable.

Example 1

 # Python Program explaining
 # the sum() function
 num= [11,12,13,14,15,11,14,15] 
 # start parameter is not provided 
 Sum = sum(num) 
 print("The sum of iterables is",Sum) 
 # start = 100 
 Sum = sum(num, 100) 
 print("Adding 10 to the sum: ",Sum) 

Output

The sum of iterables is 105
Adding 10 to the sum:  205

Example 2

 # Python Program explaining
 # the sum() function
 num = [1,2,3,4,5,1,5] 
 Sum = sum(num) 
 avg= Sum/len(num)  
 print ("The average value is: ",avg) 

Output

The average value is:  3.0