Just a very basic (and pretty ghetto) procedural-style Battleship game written in Python, from the Codecademy Python lesson. :)

codecademy-battleship.py

from random import randint

board = []

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


def print_board(board):
    # Print a new-line
    print ""

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

    # Print a new-line
    print ""


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)

for turn in range(4):
    guess_row = input("Guess Row: ")
    guess_col = input("Guess Col: ")
    print ""

    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"

        if (turn + 1) == 4:
            print "Game Over"
        else:
            print "Finished turn " + str(turn + 1)
            print_board(board)