(Deleted)

(Solved in the new fork)

IMHO it breaks the 3rd zen rule of Python. At least the return expression.

reverse is a boolean flag that indicates if resulting array should be sorted in ascending order from min to max, or reversed from max to min.
i%2 is an int with value 0/1.

In Python, an integer can also be evaluated as a boolean.
The convention is the following:

    return False
else:
    return True

Based on this conversion rule:

• if i % 2 == 0, then reverse == False, thus array is sorted in ascending order.
• if i % 2 == 1, then reverse == True, thus array is sorted in descending order.