# Why does my code not work?

#1

<Below this line, add a link to the EXACT exercise that you are stuck at.>

<In what way does your code behave incorrectly? Include ALL error messages.>
Traceback (most recent call last):
File “python”, line 29, in
ValueError: invalid literal for int() with base 10: ‘SCT’

<What do you expect to happen instead?>
that i takes input

```python

Replace this line with your code.
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)
print ship_row
print ship_col

# don’t forget to properly indent!

for turn in range(4):
print “Turn”, turn + 1
guess_row = int(raw_input("Guess Row: "))
guess_col = int(raw_input("Guess Col: "))

if guess_row == ship_row and guess_col == ship_col:
print "Congratulations! You sank my battleship!"
else:
if guess_row not in range(5) or
guess_col not in range(5):
print "Oops, that’s not even in the ocean."
elif board[guess_row][guess_col] == “X”:
print( “You guessed that one already.” )
else:
print "You missed my battleship!"
board[guess_row][guess_col] = "X"
print_board(board)

#2

@agrias

after you read below code then you understand why don’t forget to properly indent!

``````from random import randint

board = []

for x in range(5):
board.append(["O"] * 5)

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

print_board(board)
print "Let's play Battleship!"

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)
print ship_row
print ship_col

for turn in range(4):
print "Turn", turn + 1
guess_row = int(raw_input("Guess Row:"))
guess_col = int(raw_input("Guess Col:"))

if guess_row == ship_row and guess_col == ship_col:
print "Congratulations! You sunk my battleship!"
board[guess_row][guess_col] = "Y"
print_board(board)
break
else:
if(guess_row < 0 or guess_row > 4) or\
(guess_col < 0 or guess_col > 4):
print "Oops, that's not even in the ocean."
elif board[guess_row][guess_col] == "X":
print "You guessed that one already."
else:
print "You missed my battleship!"
board[guess_row][guess_col] = "X"
print_board(board)
``````

#3

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