7 kyu Sum of a sequence.py

"""
https://www.codewars.com/kata/586f6741c66d18c22800010a/train/python

Your task is to make function, which returns the sum of a sequence of integers.

The sequence is defined by 3 non-negative values: begin, end, step.

If begin value is greater than the end, function should returns 0

Examples

sequenceSum(2,2,2) === 2
sequenceSum(2,6,2) === 12 // 2 + 4 + 6
sequenceSum(1,5,1) === 15 // 1 + 2 + 3 + 4 + 5
sequenceSum(1,5,3) === 5 // 1 + 4
"""


def sequence_sum(begin_number, end_number, step):
    total = 0
    
    for i in range(begin_number, end_number+1, step):
        total += i
        
    return total
  
  
  # second:
  
#   return sum(range(begin_number, end_number+1, step))