A Visually appeling and optimized Version of Tic-Tac-Toe using Python

Tic Tac Toe/Tic-Tac-Toe.py

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+import random
+import os
+import time
+
+def clear_screen():
+    os.system('cls' if os.name == 'nt' else 'clear')
+
+def board(spaces):
+    clear_screen()
+    print(f" {spaces[0]} | {spaces[1]} | {spaces[2]} ")
+    print("___|___|___")
+    print("   |   |   ")
+    print(f" {spaces[3]} | {spaces[4]} | {spaces[5]} ")
+    print("___|___|___")
+    print("   |   |   ")
+    print(f" {spaces[6]} | {spaces[7]} | {spaces[8]} ")
+    print()
+
+def player_move(spaces, player_symbol, player_name):
+    while True:
+        try:
+            move = int(input(f"{player_name} ({player_symbol}), enter a number (1-9): "))
+            if 1 <= move <= 9:
+                if spaces[move - 1] == ' ':
+                    spaces[move - 1] = player_symbol
+                    break
+                else:
+                    print("That space is already taken. Try again.")
+            else:
+                print("Invalid input. Please enter a number between 1 and 9.")
+        except ValueError:
+            print("Invalid input. Please enter a number.")
+
+def computer_move(spaces, computer_symbol):
+    print("Computer is thinking...")
+    time.sleep(1)
+
+    empty_indices = [i for i, space in enumerate(spaces) if space == ' ']
+    if empty_indices:
+        move = random.choice(empty_indices)
+        spaces[move] = computer_symbol
+
+def check_win(spaces):
+    win_conditions = [
+        [0, 1, 2], [3, 4, 5], [6, 7, 8],
+        [0, 3, 6], [1, 4, 7], [2, 5, 8],
+        [0, 4, 8], [2, 4, 6]          
+    ]
+    for condition in win_conditions:
+        if spaces[condition[0]] == spaces[condition[1]] == spaces[condition[2]] != ' ':
+            return spaces[condition[0]]
+    return None
+
+def check_tie(spaces):
+    return ' ' not in spaces
+
+def play_game():
+    while True:
+        spaces = [' '] * 9
+        player1_symbol = 'X'
+        player2_symbol = 'O'
+        computer_symbol = 'O'
+
+        choice = ''
+        while choice not in ['1', '2']:
+            clear_screen()
+            print("Welcome to Tic-Tac-Toe!")
+            choice = input("Press 1 to play with another player.\nPress 2 to play with the computer.\nEnter your choice: ")
+
+        if choice == '1':
+            current_player_symbol = player1_symbol
+            current_player_name = "Player 1"
+            while True:
+                board(spaces)
+                player_move(spaces, current_player_symbol, current_player_name)
+
+                winner = check_win(spaces)
+                if winner:
+                    board(spaces)
+                    print(f"Congratulations {current_player_name}, you won!")
+                    break
+
+                if check_tie(spaces):
+                    board(spaces)
+                    print("It's a tie!")
+                    break
+
+                if current_player_symbol == player1_symbol:
+                    current_player_symbol = player2_symbol
+                    current_player_name = "Player 2"
+                else:
+                    current_player_symbol = player1_symbol
+                    current_player_name = "Player 1"
+
+        else:
+            while True:
+                board(spaces)
+                player_move(spaces, player1_symbol, "Player 1")
+
+                winner = check_win(spaces)
+                if winner:
+                    board(spaces)
+                    print("Congratulations, you won!")
+                    break
+
+                if check_tie(spaces):
+                    board(spaces)
+                    print("It's a tie!")
+                    break
+
+                board(spaces)
+                computer_move(spaces, computer_symbol)
+
+                winner = check_win(spaces)
+                if winner:
+                    board(spaces)
+                    print("You lose! The computer has won.")
+                    break
+
+                if check_tie(spaces):
+                    board(spaces)
+                    print("It's a tie!")
+                    break
+
+        play_again = input("Do you want to play again? (Y/N): ").upper()
+        if play_again != 'Y':
+            print("Thanks for playing!")
+            break
+
+if __name__ == "__main__":
+    play_game()