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adding READMEs, cleanup
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‎19_wod/manual3_map.py

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with open('inputs/exercises.csv') as fh:
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headers = fh.readline().rstrip().split(',')
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records = list(
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map(lambda line: dict(zip(headers,
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line.rstrip().split(','))), fh))
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pprint(records)
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mk_rec = lambda line: dict(zip(headers, line.rstrip().split(',')))
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records = map(mk_rec, fh)
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pprint(list(records))

‎19_wod/manual4_map2.py

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‎21_tictactoe/README.md

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

‎21_tictactoe/solution1.py

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parser.add_argument('-b',
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'--board',
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help='The state of the board',
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metavar='str',
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metavar='board',
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type=str,
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default='.' * 9)
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parser.add_argument('-p',
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'--player',
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help='Player',
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choices='XO',
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metavar='str',
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metavar='player',
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type=str,
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default=None)
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parser.add_argument('-c',
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'--cell',
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help='Cell 1-9',
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metavar='int',
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metavar='cell',
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type=int,
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choices=range(1, 10),
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default=None)

‎21_tictactoe/solution2.py

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parser.add_argument('-b',
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'--board',
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help='The state of the board',
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metavar='str',
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metavar='board',
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type=str,
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default='.' * 9)
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parser.add_argument('-p',
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'--player',
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help='Player',
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choices='XO',
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metavar='str',
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metavar='player',
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type=str,
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default=None)
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parser.add_argument('-c',
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'--cell',
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help='Cell 1-9',
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metavar='int',
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metavar='cell',
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type=int,
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choices=range(1, 10),
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default=None)

‎21_tictactoe/test.py

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""".strip()
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rv, out = getstatusoutput(f'{prg} --board ...OXX...')
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assert rv == 0
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assert out.strip() == board
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‎22_itictactoe/README.md

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# Interactive Tic-Tac-Toe
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Write a Python program called `itictactoe.py` that will play an interactive game of Tic-Tac-Toe starting from a blank board and iterating between players `X` and `O` until the game is finished due to a draw or a win.
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When the game starts, a blank board with cells 1-9 should be shown along with a prompt for the current player (always starting with `X`) to select a cell:
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```
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-------------
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| 1 | 2 | 3 |
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-------------
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| 4 | 5 | 6 |
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-------------
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| 7 | 8 | 9 |
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-------------
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Player X, what is your move? [q to quit]: 1
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```
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If a player tries to select an occupied cell, the move is disallowed and the same player goes until a valid choice is made:
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```
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| X | 2 | 3 |
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-------------
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| 4 | 5 | 6 |
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-------------
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| 7 | 8 | 9 |
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-------------
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Player O, what is your move? [q to quit]: 1
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-------------
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| X | 2 | 3 |
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-------------
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| 4 | 5 | 6 |
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-------------
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| 7 | 8 | 9 |
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-------------
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Cell "1" already taken
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Player O, what is your move? [q to quit]:
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```
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Play should stop when a player has won:
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```
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| X | O | 3 |
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-------------
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| X | O | 6 |
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| 7 | 8 | 9 |
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-------------
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Player X, what is your move? [q to quit]: 7
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X has won!
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```
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Or when the game is a draw:
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```
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-------------
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| X | O | O |
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-------------
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| O | X | X |
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-------------
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| X | 8 | O |
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-------------
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Player X, what is your move? [q to quit]: 8
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All right, we'll call it a draw.
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```

‎22_itictactoe/itictactoe.py renamed to ‎22_itictactoe/solution1.py

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‎22_itictactoe/itictactoe_dict.py renamed to ‎22_itictactoe/solution2_typed_dict.py

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