Why doesn't this code work? It worked in another learning program online.

Question

#I have written this code myself by the help of another learning program online and it worked, but here it does not. I don't really know how this is wrong. The mistake is said to be at line 7, in the condition of the for loop.

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 "Let's play Battleship!"
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
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
!"
break
elif(guess_row < 0 or guess_row > 4) or (guess_col
< 0 or guess_col > 4):
print "Oops, that's not even in the ocean."

Answer 1

@Tobi, I believe it's Python 2, once he used raw_input

I don't know if in Python 2 it's different about this, but another tip, don't use the same variable name outside and inside a function definition. "board" at line 2 it's not the same "board" at line 6.
Remember, variables inside def are locals and don't have any value outside function definition.

Answer 2

You certainly need to use parentheses with the print function. Does the other learning program teach Python 2?

Answer 3

Thanks, I'll take note of that. I don't really know what version they use, nothing was written about that.

Answer 4

Mmmm, I changed it again, with parentheses... it works better...thx