print_spiral_matrix.py

def print_spiral_matrix(starting_row, starting_col, ending_row, ending_col, matrix):
    up, down, right, left = [], [], [], []

    for c in range(starting_col, ending_col + 1):
        up.append(matrix[starting_row][c])
        right.append(matrix[c][ending_row])
        down.append(matrix[ending_row][-(1 + c)])
        left.append(matrix[c][starting_row])
    result = up + right[1:] + down[1:] + left[1:-1]
    if starting_row == ending_row and starting_row and ending_col:
        return result
    result += print_spiral_matrix(starting_row + 1, starting_col + 1, ending_row-1, ending_col-1, matrix)
    return result


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

result = print_spiral_matrix(0, 0, len(matrix) - 1, len(matrix[0]) - 1, matrix)
print(result)