Rotate Image (Python)

rotate_image_using_transpose.py

lass Solution(object):
    def rotate(self, matrix):
        """
        :type matrix: List[List[int]]
        :rtype: void Do not return anything, modify matrix in-place instead.
        """
        n = len(matrix)
        for i in xrange(n):
            for j in xrange(n):
                if i < j:
                    matrix[i][j], matrix[j][i] = matrix[j][i], matrix[i][j]
        for l in matrix:
            l.reverse()