Leetcode 231: Power of Two - python3

isPoweOfTwo.py

def isPowerOfTwo(n):
    left = 0
    right = 31
    result = False

    while left <= right:
        mid = (left + right) // 2

        if pow(2, mid) == n:
            result = True
            break

        if pow(2, mid) < n:
            left = mid + 1
        else:
            right = mid - 1

    return result