# "Battleship 11. Danger, Will Robinson!" - file out of range

#1

<Below this line, add a link to the exact exercise that you are stuck at.>
Battleship 11. Danger, Will Robinson!!
<In what way does your code behave incorrectly? Include ALL error messages.>
Traceback (most recent call last):
File “python”, line 32, in
IndexError: list assignment index out of range
<What do you expect to happen instead?>
I expected it to print out another grid with an “X” where the guess was. All the forums suggest the code should work however mines does not

```python

from random import randint

board =

for x in range(0, 5):
board.append([“O”] * 5)

def print_board(board):
for row in board:
print " ".join(row)

print_board(board)

def random_row(board):
return randint(0, len(board) - 1)

def random_col(board):
return randint(0, len(board[0]) - 1)

ship_row = random_row(board)
ship_col = random_col(board)
guess_row = int(raw_input(“Guess Row:”))
guess_col = int(raw_input(“Guess Col:”))

print ship_row
print ship_col

if guess_row == ship_row and guess_col == ship_col:
print “Congratulations! You sank my battleship!”

else:
board[guess_row] = ‘X’
board[guess_col] = ‘X’
print_board(board)
print “You missed my battleship!”

<do not remove the three backticks above>

#2

Your code does work, when prompted for the col and row to guess, make sure to enter a valid value (for example 2)

#3

What worked for me was that i combined the two in your last else statement
board[guess_row] = ‘X’
board[guess_col] = ‘X’
into the same line instead of having them separate. Then i didn’t have my print_board(board) in the else statement. If that makes sense? If you need me to i could try to better explain it.

#4

Thank you. I understand what you mean slightly_smiling: