Problem with running program in IDLE


So I wanted to run program I wrote at codecademy in IDLE and it shows syntax error and in line
print " ".join(row)
" is put in red as if it was wrong. What am I doing wrong?

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!"

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)

for turn in range(4):

# Everything from here on should go in your for loop!
# Be sure to indent four spaces!
    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!"
        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."
            print "You missed my battleship!"
            board[guess_row][guess_col] = "X"
        if turn == 3:
            print "Game Over"
    # Print (turn + 1) here!
        print "turn", turn + 1


does your IDLE run python3? Then print requires parentheses


... since it is now a function.

Also, raw_input() is deprecated. Use input().


Thanks guys! I guess codcademy should update their course to python 3 :stuck_out_tongue:


Python 3 is still Python, the backbone of which is much the same as Python 2. Knowing them both lets one learn and recognize the differences. Not learning Python 2 is like not learning CSS 1 & 2, or not learning HTML 4. The courses are due to be updated eventually, but we should not just drop the earlier version from our mind.


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