Algorand Smart Contracts in Python
PyTeal: Algorand Smart Contracts in Python
PyTeal is a Python language binding for Algorand Smart Contracts (ASC1s).
Algorand Smart Contracts are implemented using a new language that is stack-based, called Transaction Execution Approval Language (TEAL).
However, TEAL is essentially an assembly language. With PyTeal, developers can express smart contract logic purely using Python. PyTeal provides high level, functional programming style abstractions over TEAL and does type checking at construction time.
Install
PyTeal requires Python version >= 3.10.
If your operating system (OS) Python version < 3.10, we recommend:
- Rather than override the OS Python version, install Python >= 3.10 alongside the OS Python version.
- Use pyenv or similar tooling to manage multiple Python versions.
Recommended: Install from PyPi
Install the latest official release from PyPi:
pip install pyteal
Install Latest Commit
If needed, it's possible to install directly from the latest commit on master to use unreleased features:
WARNING: Unreleased code is experimental and may not be backwards compatible or function properly. Use extreme caution when installing PyTeal this way.
pip install git+https://github.com/algorand/pyteal
Documentation
- PyTeal Docs
docs/(README) contains raw docs.
Development Setup
Setup venv (one time):
python3 -m venv venv
. venv/bin/activate(if your shell is bash/zsh). venv/bin/activate.fish(if your shell is fish)
make setup-development- OR if you don't have
makeinstalled:
pip install -e . && pip install -r requirements.txt
Format code:
black .
flake8 docs examples pyteal scripts tests .py
Type checking using mypy:
mypy pyteal scripts
pytest pyteal tests/unit
algod is available on port 4001):
pytest tests/integration
tealdbg on port 9392 (assumes Docker is available on your system):
docker-compose up -d
docker-compose down
