Brownie

Brownie is a Python framework for deploying, testing and interacting with Ethereum smart contracts.

Dependencies

• ganache-cli
• pip
• python3 version 3.6 or greater, python3-dev, python3-tk

As Brownie relies on py-solc-x, you do not need solc installed locally but you must install all required solc dependencies.

Installation

You can install the latest release via pip:

$ pip install eth-brownie

Or clone the repository and use setuptools for the most up-to-date version:

$ python3 setup.py install

Quick Usage

To set up the default folder and file structure for Brownie use:

$ brownie init

Next, type brownie --help for basic usage information.

Documentation

Brownie documentation is hosted at Read the Docs.

Testing

To run the tests, first install the developer dependencies:

$ pip install -r requirements-dev.txt

Then use tox to run the complete suite against the full set of build targets, or pytest to run tests against a specific version of Python. If you are using pytest you must include the -p no:pytest-brownie flag to prevent it from loading the Brownie plugin.

Using Docker

You can use a sandbox container provided in the docker-compose.yml file for testing inside a Docker environment.

This container provides everything you need to test using a Python 3.6 interpreter.

Start the test environment:

docker-compose up -d

To open a session to the container:

docker-compose exec sandbox bash

To run arbitrary commands, use the bash -c prefix.

docker-compose exec sandbox bash -c ''

For example, to run the tests in brownie/tests/test_format_input.py:

docker-compose exec sandbox bash -c 'python -m pytest tests/convert/test_format_input.py'

Contributing

Help is always appreciated! Feel free to open an issue if you find a problem, or a pull request if you've solved an issue.

Join the Brownie Gitter channel if you have any questions.

Pre-Commit Hooks

We use pre-commit hooks, primarily to ensure consistent formatting among contributors.

If you haven't already, install all dev dependencies in requirements-dev.txt to enable pre-commit hooks.

Install pre-commit locally from the brownie root folder:

pre-commit install

Commiting will now automatically run the local pre-commit hooks.

If, for some reason, you need to force the commit without running the pre-commit hooks, you can manually disable the pre-commit.

git commit -m "commit message" --no-verify

License

This project is licensed under the MIT license.