how to take the transpose of a matrix in numpy? code example

Example 1: transpose matrix python

arr = list(list(x) for x in zip(*arr))

Example 2: transpose matrix in python without numpy

def transpose(matrix):
    rows = len(matrix)
    columns = len(matrix[0])

    matrix_T = []
    for j in range(columns):
        row = []
        for i in range(rows):
           row.append(matrix[i][j])
        matrix_T.append(row)

    return matrix_T