from random import randint board =  board_length=5 for x in range(0, board_length): board.append(["O"] * board_length) def print_board(board): for row in board: print " ".join(row) # Add your code below! def random_row(board): return randint(0, len(board-1)) def random_col(board): return randint(0, len(board-1)) random_row(board) random_col(board)
Getting the error:
Oops, try again. Your random_row function should take exactly one parameter.
Traceback (most recent call last): File "python", line 21, in <module> File "python", line 16, in random_row TypeError: unsupported operand type(s) for -: 'list' and 'int'
What am I doing wrong?