17/19 "A real win" break problem


#1
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)
# Everything from here on should go in your for loop!
# Be sure to indent four spaces!
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
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"        
        turn = turn + 1
        print turn
if turn==4:
    print"Game Over"
print_board(board)

#2

A break can't be placed outside a loop.

What does a break do?

Do you agree that your break is outside of any loop?

What marks the end of a loop?


#3

We can use the command break to get out of a for loop. So here is my answer and it works fine:

# Print (turn + 1) here!
for turn in range(4):
print "Turn", turn + 1
break
print_board(board)
if turn == 3:
print "Game Over"


#4

before your for loop do you have to set turn = 0??? How does it know what to add +1 to ...
If someone could explain that .. I'd be very grateful.
Thanks,

Update: never mind ... I realized that turn was declared when the for loop was created.