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Algorand Smart Contracts in Python

Project description

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PyTeal: Algorand Smart Contracts in Python

Build Status PyPI version Documentation Status Code style: black

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.


PyTeal requires Python version >= 3.6.

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+


Development Setup

Setup venv (one time):

  • python3 -m venv venv

Active venv:

  • . venv/bin/activate (if your shell is bash/zsh)
  • . venv/bin/ (if your shell is fish)

Pip install PyTeal in editable state

  • pip install -e .

Install dependencies:

  • pip install -r requirements.txt

Type checking using mypy:

  • mypy pyteal

Run tests:

  • pytest

Format code:

  • black .

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