PokerKit is an open-source software library, written in pure Python, for simulating games, evaluating hands, and facilitating statistical analysis, developed by the University of Toronto Computer Poker Student 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, and 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.
- 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.
The PokerKit library requires Python Version 3.11 or above and can be installed using pip:
pip install pokerkitExample usages of PokerKit is shown below.
Below shows the 4-runout hand between Phil Hellmuth and the Loose Cannon Ernest Wiggins.
Link: https://youtu.be/cnjJv7x0HMY?si=4l05Ez7lQVczt8DI&t=638
Note that the starting stacks for some players are set to be math.inf as they are not mentioned.
from math import inf
from pokerkit import Automation, Mode, NoLimitTexasHoldem
state = NoLimitTexasHoldem.create_state(
# Automations
(
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,
),
False, # Uniform antes?
{-1: 600}, # Antes
(200, 400, 800), # Blinds or straddles
400, # Min-bet
(inf, 116400, 86900, inf, 50000, inf), # Starting stacks
6, # Number of players
mode=Mode.CASH_GAME,
)Below are the pre-flop dealings and actions.
state.deal_hole('JsTh') # Tony G
state.deal_hole('Ah9d') # Hellmuth
state.deal_hole('KsKc') # Wiggins
state.deal_hole('5c2h') # Negreanu
state.deal_hole('6h5h') # Brunson
state.deal_hole('6s3s') # Laak
state.fold() # Negreanu
state.complete_bet_or_raise_to(2800) # Brunson
state.fold() # Laak
state.check_or_call() # Tony G
state.complete_bet_or_raise_to(12600) # Hellmuth
state.check_or_call() # Wiggins
state.check_or_call() # Brunson
state.check_or_call() # Tony GBelow are the flop dealing and actions.
state.burn_card('??')
state.deal_board('9hTs9s')
state.check_or_call() # Tony G
state.complete_bet_or_raise_to(17000) # Hellmuth
state.complete_bet_or_raise_to(36000) # Wiggins
state.fold() # Brunson
state.fold() # Tony G
state.complete_bet_or_raise_to(103800) # Hellmuth
state.check_or_call() # WigginsBelow is selecting the number of runouts.
state.select_runout_count(4) # Hellmuth
state.select_runout_count(None) # WigginsBelow is the first runout.
state.burn_card('??')
state.deal_board('Jh') # Turn
state.burn_card('??')
state.deal_board('Ad') # RiverBelow is the second runout.
state.burn_card('??')
state.deal_board('Kh') # Turn
state.burn_card('??')
state.deal_board('3c') # RiverBelow is the third runout.
state.burn_card('??')
state.deal_board('7s') # Turn
state.burn_card('??')
state.deal_board('8s') # RiverBelow is the fourth runout.
state.burn_card('??')
state.deal_board('Qc') # Turn
state.burn_card('??')
state.deal_board('Kd') # RiverBelow are the final stacks.
print(state.stacks) # [inf, 79400, 149700, inf, 37400, inf]Below shows the first televised million-dollar pot between Tom Dwan and Phil Ivey.
Link: https://youtu.be/GnxFohpljqM
Note that the starting stack of Patrik Antonius is set to be math.inf as it is not mentioned.
from math import inf
from pokerkit import Automation, NoLimitTexasHoldem
state = NoLimitTexasHoldem.create_state(
# Automations
(
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, # Uniform antes?
500, # Antes
(1000, 2000), # Blinds or straddles
2000, # Min-bet
(1125600, inf, 553500), # Starting stacks
3, # Number of players
)Below are 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() # DwanBelow are the flop dealing and actions.
state.burn_card('??')
state.deal_board('Jc3d5c')
state.complete_bet_or_raise_to(35000) # Ivey
state.check_or_call() # DwanBelow are 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() # DwanBelow is the river dealing.
state.burn_card('??')
state.deal_board('Jh')Below are the final stacks.
print(state.stacks) # [572100, inf, 1109500]Below shows an all-in hand between Xuan and Phua.
Link: https://youtu.be/QlgCcphLjaQ
from pokerkit import Automation, NoLimitShortDeckHoldem
state = NoLimitShortDeckHoldem.create_state(
# Automations
(
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, # Uniform antes?
3000, # Antes
{-1: 3000}, # Blinds or straddles
3000, # Min-bet
(495000, 232000, 362000, 403000, 301000, 204000), # Starting stacks
6, # Number of players
)Below are 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() # XuanBelow is the flop dealing.
state.burn_card('??')
state.deal_board('9h6cKc')Below is the turn dealing.
state.burn_card('??')
state.deal_board('Jh')Below is the river dealing.
state.burn_card('??')
state.deal_board('Ts')Below are the final stacks.
print(state.stacks) # [489000, 226000, 684000, 400000, 0, 198000]Below shows the largest online poker pot ever played between Patrik Antonius and Viktor Blom.
Link: https://youtu.be/UMBm66Id2AA
from pokerkit import Automation, PotLimitOmahaHoldem
state = PotLimitOmahaHoldem.create_state(
# Automations
(
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, # Uniform antes?
0, # Antes
(500, 1000), # Blinds or straddles
1000, # Min-bet
(1259450.25, 678473.5), # Starting stacks
2, # Number of players
)Below are 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() # BlomBelow are 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() # BlomBelow is the turn dealing.
state.burn_card('??')
state.deal_board('5h')Below is the river dealing.
state.burn_card('??')
state.deal_board('9c')Below are the final stacks.
print(state.stacks) # [1937923.75, 0.0]Below shows a bad beat between Yockey and Arieh.
Link: https://youtu.be/pChCqb2FNxY
from pokerkit import Automation, FixedLimitDeuceToSevenLowballTripleDraw
state = FixedLimitDeuceToSevenLowballTripleDraw.create_state(
# Automations
(
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, # Uniform antes?
0, # Antes
(75000, 150000), # Blinds or straddles
150000, # Small-bet
300000, # Big-bet
(1180000, 4340000, 5910000, 10765000), # Starting stacks
4, # Number of players
)Below are 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() # AriehBelow are 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() # AriehBelow are 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() # AriehBelow are 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() # AriehBelow are the final stacks.
print(state.stacks) # [0, 4190000, 5910000, 12095000]Below shows an example badugi hand from Wikipedia.
Link: https://en.wikipedia.org/wiki/Badugi
Note that the starting stacks are set to be math.inf as they are not mentioned.
from math import inf
from pokerkit import Automation, FixedLimitBadugi
state = FixedLimitBadugi.create_state(
# Automations
(
Automation.ANTE_POSTING,
Automation.BET_COLLECTION,
Automation.BLIND_OR_STRADDLE_POSTING,
Automation.HAND_KILLING,
Automation.CHIPS_PUSHING,
Automation.CHIPS_PULLING,
),
True, # Uniform antes?
0, # Antes
(1, 2), # Blinds or straddles
2, # Small-bet
4, # Big-bet
inf, # Starting stacks
4, # Number of players
)Below are 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() # CarolBelow are 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() # BobBelow are 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() # CarolBelow are 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() # CarolBelow is the showdown.
state.show_or_muck_hole_cards('2s4c6d9h') # Alice
state.show_or_muck_hole_cards('3s5d7c8h') # CarolBelow are the final stacks.
print(state.stacks) # [inf, inf, inf, inf]
print(state.payoffs) # [-4, 20, 0, -16]PokerKit has extensive test coverage, passes mypy static type checking with strict mode, and has been validated through extensive use in real-life scenarios.
Contributions are welcome! Please read our Contributing Guide for more information.
PokerKit is distributed under the MIT license.
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}}
