pokerkit 0.4.1

An open-source Python library for poker simulations and hand evaluations

PokerKit is an open-source Python library for simulating poker games and evaluating poker hands, developed by the University of Toronto Computer Poker Research Group. PokerKit supports an extensive array of poker variants and it provides a flexible architecture for users to define their custom games. These facilities are exposed via an intuitive unified high-level programmatic API. The library can be used in a variety of use cases, from poker AI development, tool creation, to online poker casino implementation. PokerKit’s reliability has been established through static type checking, extensive doctests, and unit tests, achieving 99% code coverage.

Features

• Extensive poker game logic for major and minor poker variants.

• High-speed hand evaluations.

• Customizable game states and parameters.

• Robust implementation with static type checking and extensive unit tests and doctests.

Installation

The PokerKit library can be installed using pip:

pip install pokerkit

Usage

The first televised million dollar pot between Tom Dwan and Phil Ivey.

Link: https://youtu.be/GnxFohpljqM

Setup the game.

from pokerkit import Automation, NoLimitTexasHoldem

state = NoLimitTexasHoldem.create_state(
    (
        Automation.ANTE_POSTING,
        Automation.BET_COLLECTION,
        Automation.BLIND_OR_STRADDLE_POSTING,
        Automation.HOLE_CARDS_SHOWING_OR_MUCKING,
        Automation.HAND_KILLING,
        Automation.CHIPS_PUSHING,
        Automation.CHIPS_PULLING,
    ),
    True,
    500,
    (1000, 2000),
    2000,
    (1125600, 2000000, 553500),
    3,
)

Below shows the pre-flop dealings and actions.

state.deal_hole('Ac2d')  # Ivey
state.deal_hole('????')  # Antonius
state.deal_hole('7h6h')  # Dwan

state.complete_bet_or_raise_to(7000)  # Dwan
state.complete_bet_or_raise_to(23000)  # Ivey
state.fold()  # Antonius
state.check_or_call()  # Dwan

Below shows the flop dealing and actions.

state.burn_card('??')
state.deal_board('Jc3d5c')

state.complete_bet_or_raise_to(35000)  # Ivey
state.check_or_call()  # Dwan

Below shows the turn dealing and actions.

state.burn_card('??')
state.deal_board('4h')

state.complete_bet_or_raise_to(90000)  # Ivey
state.complete_bet_or_raise_to(232600)  # Dwan
state.complete_bet_or_raise_to(1067100)  # Ivey
state.check_or_call()  # Dwan

Below shows the river dealing.

state.burn_card('??')
state.deal_board('Jh')

Below show the final stacks.

print(state.stacks)  # [572100, 1997500, 1109500]

An all-in hand between Xuan and Phua.

Link: https://youtu.be/QlgCcphLjaQ

from pokerkit import Automation, NoLimitShortDeckHoldem

state = NoLimitShortDeckHoldem.create_state(
    (
        Automation.ANTE_POSTING,
        Automation.BET_COLLECTION,
        Automation.BLIND_OR_STRADDLE_POSTING,
        Automation.HOLE_CARDS_SHOWING_OR_MUCKING,
        Automation.HAND_KILLING,
        Automation.CHIPS_PUSHING,
        Automation.CHIPS_PULLING,
    ),
    True,
    3000,
    {-1: 3000},
    3000,
    (495000, 232000, 362000, 403000, 301000, 204000),
    6,
)

Below shows the pre-flop dealings and actions.

state.deal_hole('Th8h')  # Badziakouski
state.deal_hole('QsJd')  # Zhong
state.deal_hole('QhQd')  # Xuan
state.deal_hole('8d7c')  # Jun
state.deal_hole('KhKs')  # Phua
state.deal_hole('8c7h')  # Koon

state.check_or_call()  # Badziakouski
state.check_or_call()  # Zhong
state.complete_bet_or_raise_to(35000)  # Xuan
state.fold()  # Jun
state.complete_bet_or_raise_to(298000)  # Phua
state.fold()  # Koon
state.fold()  # Badziakouski
state.fold()  # Zhong
state.check_or_call()  # Xuan

Below shows the flop dealing.

state.burn_card('??')
state.deal_board('9h6cKc')

Below shows the turn dealing.

state.burn_card('??')
state.deal_board('Jh')

Below shows the river dealing.

state.burn_card('??')
state.deal_board('Ts')

Below show the final stacks.

print(state.stacks)  # [489000, 226000, 684000, 400000, 0, 198000]

The largest online poker pot every played between Patrik Antonius and Viktor Blom.

Link: https://youtu.be/UMBm66Id2AA

from pokerkit import Automation, PotLimitOmahaHoldem

state = PotLimitOmahaHoldem.create_state(
    (
        Automation.ANTE_POSTING,
        Automation.BET_COLLECTION,
        Automation.BLIND_OR_STRADDLE_POSTING,
        Automation.HOLE_CARDS_SHOWING_OR_MUCKING,
        Automation.HAND_KILLING,
        Automation.CHIPS_PUSHING,
        Automation.CHIPS_PULLING,
    ),
    True,
    0,
    (500, 1000),
    1000,
    (1259450.25, 678473.5),
    2,
)

Below shows the pre-flop dealings and actions.

state.deal_hole('Ah3sKsKh')  # Antonius
state.deal_hole('6d9s7d8h')  # Blom

state.complete_bet_or_raise_to(3000)  # Blom
state.complete_bet_or_raise_to(9000)  # Antonius
state.complete_bet_or_raise_to(27000)  # Blom
state.complete_bet_or_raise_to(81000)  # Antonius
state.check_or_call()  # Blom

Below shows the flop dealing and actions.

state.burn_card('??')
state.deal_board('4s5c2h')

state.complete_bet_or_raise_to(91000)  # Antonius
state.complete_bet_or_raise_to(435000)  # Blom
state.complete_bet_or_raise_to(779000)  # Antonius
state.check_or_call()  # Blom

Below shows the turn dealing.

state.burn_card('??')
state.deal_board('5h')

Below shows the river dealing.

state.burn_card('??')
state.deal_board('9c')

Below show the final stacks.

print(state.stacks)  # [1937923.75, 0.0]

A bad beat between Yockey and Arieh.

Link: https://youtu.be/pChCqb2FNxY

from pokerkit import Automation, FixedLimitDeuceToSevenLowballTripleDraw

state = FixedLimitDeuceToSevenLowballTripleDraw.create_state(
    (
        Automation.ANTE_POSTING,
        Automation.BET_COLLECTION,
        Automation.BLIND_OR_STRADDLE_POSTING,
        Automation.HOLE_CARDS_SHOWING_OR_MUCKING,
        Automation.HAND_KILLING,
        Automation.CHIPS_PUSHING,
        Automation.CHIPS_PULLING,
    ),
    True,
    0,
    (75000, 150000),
    150000,
    300000,
    (1180000, 4340000, 5910000, 10765000),
    4,
)

Below shows the pre-flop dealings and actions.

state.deal_hole('7h6c4c3d2c')  # Yockey
state.deal_hole('??????????')  # Hui
state.deal_hole('??????????')  # Esposito
state.deal_hole('AsQs6s5c3c')  # Arieh

state.fold()  # Esposito
state.complete_bet_or_raise_to()  # Arieh
state.complete_bet_or_raise_to()  # Yockey
state.fold()  # Hui
state.check_or_call()  # Arieh

Below shows the first draw and actions.

state.stand_pat_or_discard()  # Yockey
state.stand_pat_or_discard('AsQs')  # Arieh
state.burn_card('??')
state.deal_hole('2hQh')  # Arieh

state.complete_bet_or_raise_to()  # Yockey
state.check_or_call()  # Arieh

Below shows the second draw and actions.

state.stand_pat_or_discard()  # Yockey
state.stand_pat_or_discard('Qh')  # Arieh
state.burn_card('??')
state.deal_hole('4d')  # Arieh

state.complete_bet_or_raise_to()  # Yockey
state.check_or_call()  # Arieh

Below shows the third draw and actions.

state.stand_pat_or_discard()  # Yockey
state.stand_pat_or_discard('6s')  # Arieh
state.burn_card('??')
state.deal_hole('7c')  # Arieh

state.complete_bet_or_raise_to()  # Yockey
state.check_or_call()  # Arieh

Below show the final stacks.

print(state.stacks)  # [0, 4190000, 5910000, 12095000]

An example badugi hand from Wikipedia.

Link: https://en.wikipedia.org/wiki/Badugi

from pokerkit import Automation, FixedLimitBadugi

state = FixedLimitBadugi.create_state(
    (
        Automation.ANTE_POSTING,
        Automation.BET_COLLECTION,
        Automation.BLIND_OR_STRADDLE_POSTING,
        Automation.HAND_KILLING,
        Automation.CHIPS_PUSHING,
        Automation.CHIPS_PULLING,
    ),
    True,
    0,
    (1, 2),
    2,
    4,
    200,
    4,
)

Below shows the pre-flop dealings and actions.

state.deal_hole('????????')  # Bob
state.deal_hole('????????')  # Carol
state.deal_hole('????????')  # Ted
state.deal_hole('????????')  # Alice

state.fold()  # Ted
state.check_or_call()  # Alice
state.check_or_call()  # Bob
state.check_or_call()  # Carol

Below shows the first draw and actions.

state.stand_pat_or_discard('????')  # Bob
state.stand_pat_or_discard('????')  # Carol
state.stand_pat_or_discard('??')  # Alice
state.burn_card('??')
state.deal_hole('????')  # Bob
state.deal_hole('????')  # Carol
state.deal_hole('??')  # Alice

state.check_or_call()  # Bob
state.complete_bet_or_raise_to()  # Carol
state.check_or_call()  # Alice
state.check_or_call()  # Bob

Below shows the second draw and actions.

state.stand_pat_or_discard('??')  # Bob
state.stand_pat_or_discard()  # Carol
state.stand_pat_or_discard('??')  # Alice
state.burn_card('??')
state.deal_hole('??')  # Bob
state.deal_hole('??')  # Alice

state.check_or_call()  # Bob
state.complete_bet_or_raise_to()  # Carol
state.complete_bet_or_raise_to()  # Alice
state.fold()  # Bob
state.check_or_call()  # Carol

Below shows the third draw and actions.

state.stand_pat_or_discard('??')  # Carol
state.stand_pat_or_discard()  # Alice
state.burn_card('??')
state.deal_hole('??')  # Carol

state.check_or_call()  # Carol
state.complete_bet_or_raise_to()  # Alice
state.check_or_call()  # Carol

Below show the showdown.

state.show_or_muck_hole_cards('2s4c6d9h')  # Alice
state.show_or_muck_hole_cards('3s5d7c8h')  # Carol

Below show the final stacks.

print(state.stacks)  # [196, 220, 200, 184]

Testing and Validation

PokerKit has extensive test coverage, passes mypy static type checking with strict parameter, and has been validated through extensive use in real-life scenarios.

Contributing

Contributions are welcome! Please read our Contributing Guide for more information.

License

PokerKit is distributed under the MIT license.

Citing

If you use PokerKit in your research, please cite our library:

@ARTICLE{10287546,
  author={Kim, Juho},
  journal={IEEE Transactions on Games},
  title={PokerKit: A Comprehensive Python Library for Fine-Grained Multi-Variant Poker Game Simulations},
  year={2023},
  volume={},
  number={},
  pages={1-8},
  doi={10.1109/TG.2023.3325637}}