Sum of odd numbers between 1 to 100

Python program to print sum of odd numbers between 1 to 100 (1 + 3 + 5 + .... + 99). 

Concept to learn: Python while loop

# Python program to print sum of odd numbers between 1 to 100 (1+3+5...+99) using while loop.

sum = 0
num = 1

while(num <= 100):
    sum = sum + num
    num = num + 2
print("Sum of odd numbers between 1 to 100 is ", sum)

Output of Program

Sum of odd numbers between 1 to 100 is 2500