Transpose Matrix Python Solution with Tests

lcpy gen -n 867   # by problem number
lcpy gen -s transpose_matrix   # by problem name

Input: matrix = [[1,2,3],[4,5,6],[7,8,9]]
Output: [[1,4,7],[2,5,8],[3,6,9]]

Input: matrix = [[1,2,3],[4,5,6]]
Output: [[1,4],[2,5],[3,6]]

class Solution:
    # Time: O(m * n)
    # Space: O(m * n)
    def transpose(self, matrix: list[list[int]]) -> list[list[int]]:
        rows = len(matrix)
        cols = len(matrix[0])
        return [[matrix[row][col] for row in range(rows)] for col in range(cols)]