https://www.youtube.com/playlist?list=PLhOuww6rJJNObtig0Kr-jgTJly1x04jgz
Create a Python program called tictactoe.py that will play a single round of the game Tic-Tac-Toe.
The program should accept the following parameters:
-b|--board: The optional state of the board for the play. This will be a string of 9 characters representing the 9 cells of the 3x3 board. The string should be composed only ofXandOto denote a player occupying that cell or.to show that the cell is open. The default is 9 '.' as all cells are open.-p|--player: An optional player which must be eitherXorO.-c|--cell: An optional cell which must be in the range 1-9 (inclusive).
Here is the usage the program should print for -h or --help:
$ ./tictactoe.py -h
usage: tictactoe.py [-h] [-b str] [-p str] [-c int]
Tic-Tac-Toe
optional arguments:
-h, --help show this help message and exit
-b str, --board str The state of the board (default: .........)
-p str, --player str Player (default: None)
-c int, --cell int Cell 1-9 (default: None)
The program will print the state of the board plus any modifications to the state made by --player and --cell along with the final outcome of the game which can either be "No winner" or "{player} has won."
When run with no arguments, it should print a blank Tic-Tac-Toe board and "No winner":
$ ./tictactoe.py
-------------
| 1 | 2 | 3 |
-------------
| 4 | 5 | 6 |
-------------
| 7 | 8 | 9 |
-------------
No winner.
Given a valid --player trying to take an unoccupied --cell, the program should modify the state before printing the board and deciding the outcome:
$ ./tictactoe.py -p X -c 1
-------------
| X | 2 | 3 |
-------------
| 4 | 5 | 6 |
-------------
| 7 | 8 | 9 |
-------------
No winner.
The program should error out for a bad --board:
$ ./tictactoe.py -b ABC......
usage: tictactoe.py [-h] [-b str] [-p str] [-c int]
tictactoe.py: error: --board "ABC......" must be 9 characters of ., X, O
Or a bad --cell:
$ ./tictactoe.py -p X -c 10
usage: tictactoe.py [-h] [-b str] [-p str] [-c int]
tictactoe.py: error: argument -c/--cell: invalid choice: 10 \
(choose from 1, 2, 3, 4, 5, 6, 7, 8, 9)
Or a bad --player:
$ ./tictactoe.py -p A -c 1
usage: tictactoe.py [-h] [-b str] [-p str] [-c int]
tictactoe.py: error: argument -p/--player: invalid choice: 'A' \
(choose from 'X', 'O')
Or in the event a --player is trying to take an occupied --cell:
$ ./tictactoe.py -b X........ -p O -c 1
usage: tictactoe.py [-h] [-b str] [-p str] [-c int]
tictactoe.py: error: --cell "1" already taken
Or if only --player or --cell is provided:
$ ./tictactoe.py --player X
usage: tictactoe.py [-h] [-b board] [-p player] [-c cell]
tictactoe.py: error: Must provide both --player and --cell
The program should detect a winning state:
$ ./tictactoe.py -b .XX....OO -p X -c 1
-------------
| X | X | X |
-------------
| 4 | 5 | 6 |
-------------
| 7 | O | O |
-------------
X has won!
The program should pass all tests:
$ make test
pytest -xv test.py
============================= test session starts ==============================
...
collected 15 items
test.py::test_exists PASSED [ 6%]
test.py::test_usage PASSED [ 13%]
test.py::test_no_input PASSED [ 20%]
test.py::test_bad_board PASSED [ 26%]
test.py::test_bad_player PASSED [ 33%]
test.py::test_bad_cell_int PASSED [ 40%]
test.py::test_bad_cell_str PASSED [ 46%]
test.py::test_both_player_and_cell PASSED [ 53%]
test.py::test_good_board_01 PASSED [ 60%]
test.py::test_good_board_02 PASSED [ 66%]
test.py::test_mutate_board_01 PASSED [ 73%]
test.py::test_mutate_board_02 PASSED [ 80%]
test.py::test_mutate_cell_taken PASSED [ 86%]
test.py::test_winning PASSED [ 93%]
test.py::test_losing PASSED [100%]
============================== 15 passed in 2.12s ==============================