A simple, readable, and extensible Blackjack (21) implementation in Python. This repository contains a command-line Blackjack game (and/or library) intended for learning, experimenting with game logic, and extending into GUIs or web front-ends.
This README provides a quick overview, how to run the game, rules implemented, development notes, testing instructions, and contribution guidance. Replace TODO placeholders with project-specific details (entrypoint filename, dependencies, screenshots) as needed.
- Features
- Requirements
- Installation
- Usage
- Gameplay & Rules
- Project Structure
- Development & Testing
- Extending the Project
- Contributing
- License
- Contact
- Classic Blackjack rules (dealer stands on 17, player can hit/stand)
- Deck shuffling and dealing logic
- Hand value calculation (Aces counted as 1 or 11)
- Betting and simple bank management (if implemented)
- Clear, well-documented Python code suitable for learning and extension
- Unit tests for core game logic (recommended)
If some features listed above are not present in your codebase, remove or edit them to match the implementation.
- Python 3.8+ (adjust if your project requires a different version)
- Optional: pipenv, poetry, or virtualenv for environment isolation
If your project has external dependencies, add them to requirements.txt or pyproject.toml.
-
Clone the repository
git clone https://github.com/phantomop26/Blackjack.git cd Blackjack -
Create and activate a virtual environment (recommended)
python -m venv .venv source .venv/bin/activate # macOS / Linux .venv\Scripts\activate # Windows (PowerShell)
-
Install dependencies (if any)
pip install -r requirements.txt
If there's no
requirements.txt, there may be no external dependencies.
Run the game from the command line. Replace main.py below with your actual entrypoint file if different (e.g., blackjack.py, app.py).
python main.py
# or
python blackjack.pyBasic CLI controls:
- Enter
horhitto draw a card - Enter
sorstandto end your turn - Enter
qorquitto exit the game
If the repository exposes the game logic as an importable module, you can run it from other Python code:
from blackjack import Game
game = Game()
game.play()(Update examples to match your actual module and class names.)
This implementation follows common Blackjack rules (adjust as necessary):
- Objective: beat the dealer by having a hand value closer to 21 without going over.
- Number cards count as their face value; face cards (J/Q/K) count as 10.
- Aces count as 1 or 11, whichever is more favorable without busting.
- Dealer must hit until reaching 17 or higher (soft/hard 17 behavior should be documented in code).
- Blackjack (ace + 10-value card) is recognized and paid according to rules (if payouts are implemented).
Document any rule variants (splits, double down, insurance) if implemented.
A suggested/typical layout — update to reflect the repo exactly:
- blackjack/ # Python package
- init.py
- game.py # main game loop and CLI
- deck.py # deck and card models
- hand.py # hand evaluation logic
- player.py # player & dealer classes
- utils.py # helpers
- tests/ # unit tests (pytest recommended)
- requirements.txt
- README.md
- LICENSE
Run unit tests (if pytest is used):
pytestRecommended checks:
- Static analysis: flake8 / pylint
- Formatting: black
- Add pre-commit hooks:
pip install pre-commit
pre-commit installWrite tests for:
- Hand value calculation (including multiple aces)
- Deck shuffling and dealing (no duplicate cards)
- Game outcomes (win/lose/push/blackjack)
Ideas to expand the project:
- Add support for splitting and doubling down
- Implement betting with persistent player bank
- Create a GUI (Tkinter, PyQt) or a web interface (Flask / FastAPI)
- Add AI dealer strategies or basic card-counting simulation
- Persist game history or leaderboards
Contributions are welcome — please follow a simple workflow:
- Fork the repo and create a feature branch
- Add tests for new behavior
- Open a pull request with a clear description of changes
Consider adding CONTRIBUTING.md and ISSUE/PR templates to streamline contributions.
This project is available under the MIT License. See LICENSE for details (or add a LICENSE file if missing).
Maintainer: phantomop26
GitHub: https://github.com/phantomop26
Issues: https://github.com/phantomop26/Blackjack/issues
If you want, I can:
- create a matching requirements.txt (if I inspect imports),
- scaffold pytest tests for core modules (deck/hand/game),
- add a GitHub Actions workflow for running tests,
- or create a .gitignore and LICENSE file.
Tell me which one to generate next and I will add it to the repository.