Power of Two Python Solution with Tests

lcpy gen -n 231   # by problem number
lcpy gen -s power_of_two   # by problem name

Input: n = 1
Output: true
Explanation: 2^0 = 1

Input: n = 16
Output: true
Explanation: 2^4 = 16

Input: n = 3
Output: false

class Solution:
    # Time: O(1)
    # Space: O(1)
    def is_power_of_two(self, n: int) -> bool:
        return n > 0 and n & (n - 1) == 0