Battleship game in python

[Colpyin]

Hello, I'm kinda new to python and programming in general, but I would like to code the battleship game.
But I'm currently struggling at implementing larger battleships than a battleship with the width of 1. And deleting the random part to make it work for 2 players.
And I'm not sure if my "You guessed than one already works" , I think not.

Thanks.

#!/usr/bin/python3 
# -*- coding : utf-8 -*-


#MIT License

# Copyright (c) [2016] [Colpyin]

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.


from random import randint #To create an imaginary opponent when you have no friends.
import os #To have a nice and clean interface for the game.

board = []

rules = str(input("Do you know how to play ?" "(" + '\x1b[1;31;1m' + 'n' + '\x1b[0m' + "/" + '\x1b[1;32;1m' + 'y' + '\x1b[0m' + ")"))

for x in range(5):
    board.append(["O"] * 5) #Creates the 5x5 matrix.

def print_board(board):
    os.system('clear') #Clear the screen each turn of the game
    print("Let's play some Battleships ! :D")
    if rules == "n":
        print()
        print("How to play : Each turn you can guess an unique position for the ship. You need to sunk the ship before you reach the maximum number of turns authorized.")
        print()
    print("Good Luck & Have Fun :P")
    print("Version -2.0")
    print()
    print("Display of Quality.")
    print("  0|1|2|3|4")
    for row in range(len(board)): 
        print(str(row) + "|" + "|".join(board[row])) #To have a nice matrix display without "[" , "]" and "," 
    print()
print_board(board) #Initializes the board

def random_row(board):
    return(randint(0, len(board) - 1)) #Generates a random number between 0 and 4 for the rows.

def random_col(board): 
    return(randint(0, len(board[0]) - 1)) #Generates a random number between 0 and 4 for the collumns.

#Assigning the generated random numbers to ship_row and ship_col who are respectively the [j] and [i] coordinates.
# of the ship 
ship_row = random_row(board) 
ship_col = random_col(board)

p1 = str(input("Enter your nickname : "))
# n = int(input("Enter the desired number of turns : "))

for turn in range(6): #For loop with the desired number of turns.
    print("Turn", turn) #Displays the actual turn number.

    guess_col = int(input("Guess Col:")) #Lets the player guess the [i] coordinate of the ship.
    guess_row = int(input("Guess Row:")) #Lets the player guess the [j] coordinate of the ship.
   
    if guess_row == ship_row and guess_col == ship_col: #Tests if guess of the player is right and if he won.
        print()
        print('\x1b[1;32;1m' + 'Congratulations' + '\x1b[0m' +" "+ p1 + ", " + 'you sunk my battleship!')
        break #Preventing the game to continue running.
    else:
        if ((guess_row < 0 or guess_row > 4) or (guess_col < 0 or guess_col > 4)): #Doesn't allow coordinates greater
                                                                                   # than 4 and lower than 0.
            print()
            print("Oops, that's not even in the ocean.")
        elif(board[guess_row][guess_col] == "•"): #Tests if the player already played on those coordinates.
            print()
            print("You guessed that one already.")
        else:
            board[guess_row][guess_col] = "•" 
            print()
            print("You missed my battleship !") 
            if turn == 5: #Equivalent to the number of turns. If the ship isn't hit it's a Game-Over.
                print('\x1b[1;31;1m' + 'Game' + '\x1b[0m' + " " + '\x1b[1;31;1m' + 'Over.' + '\x1b[0m')
                print()
                break
        print_board(board)