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https://github.com/ethereum/py-evm

A Python implementation of the Ethereum Virtual Machine
https://github.com/ethereum/py-evm

ethereum ethereum-virtual-machine evm python

Last synced: 5 days ago
JSON representation

A Python implementation of the Ethereum Virtual Machine

Host: GitHub
URL: https://github.com/ethereum/py-evm
Owner: ethereum
License: mit
Created: 2016-12-27T19:36:00.000Z (about 8 years ago)
Default Branch: main
Last Pushed: 2024-08-23T11:13:38.000Z (5 months ago)
Last Synced: 2024-10-29T14:50:22.594Z (3 months ago)
Topics: ethereum, ethereum-virtual-machine, evm, python
Language: Python
Homepage: https://py-evm.readthedocs.io/en/latest/
Size: 16.6 MB
Stars: 2,265
Watchers: 100
Forks: 649
Open Issues: 104
Metadata Files:
- Readme: README.md
- Changelog: newsfragments/README.md
- Contributing: docs/contributing.rst
- License: LICENSE
- Code of conduct: docs/code_of_conduct.rst

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README

        # Python Implementation of the Ethereum protocol

[![Join the conversation on Discord](https://img.shields.io/discord/809793915578089484?color=blue&label=chat&logo=discord&logoColor=white)](https://discord.gg/GHryRvPB84)

[![Build Status](https://circleci.com/gh/ethereum/py-evm.svg?style=shield)](https://circleci.com/gh/ethereum/py-evm)

[![PyPI version](https://badge.fury.io/py/py-evm.svg)](https://badge.fury.io/py/py-evm)

[![Python versions](https://img.shields.io/pypi/pyversions/py-evm.svg)](https://pypi.python.org/pypi/py-evm)

[![Docs build](https://readthedocs.org/projects/py-evm/badge/?version=latest)](https://py-evm.readthedocs.io/en/latest/?badge=latest)

## Py-EVM

Py-EVM is an implementation of the Ethereum protocol in Python. It contains the low level

primitives for the original proof-of-work (POW), (formerly known as Ethereum 1.0) chain

as well as emerging support for the proof-of-stake (POS) (formerly known as Ethereum 2.0) spec.

### Goals

Py-EVM aims to eventually become the defacto Python implementation of the Ethereum protocol,

enabling a wide array of use cases for both public and private chains.

In particular Py-EVM aims to:

- be a reference implementation of the Ethereum POW and POS implementations in one of the most widely used and understood languages, Python.

- be easy to understand and modifiable

- have clear and simple APIs

- come with solid, friendly documentation

- deliver the low level primitives to build various clients on top (including *full* and *light* clients)

- be highly flexible to support both research as well as alternate use cases like private chains.

## Quickstart

```sh

python -m pip install py-evm

```

[Get started in 5 minutes](https://py-evm.readthedocs.io/en/latest/guides/building_an_app_that_uses_pyevm.html)

## Documentation

Check out the [documentation on our official website](https://py-evm.readthedocs.io/en/latest/)

## Developer Setup

If you would like to hack on py-evm, please check out the [Snake Charmers

Tactical Manual](https://github.com/ethereum/snake-charmers-tactical-manual)

for information on how we do:

- Testing

- Pull Requests

- Documentation

We use [pre-commit](https://pre-commit.com/) to maintain consistent code style. Once

installed, it will run automatically with every commit. You can also run it manually

with `make lint`. If you need to make a commit that skips the `pre-commit` checks, you

can do so with `git commit --no-verify`.

### Development Environment Setup

```sh

git clone [email protected]:ethereum/py-evm.git

cd py-evm

virtualenv -p python3 venv

. venv/bin/activate

python -m pip install -e ".[dev]"

pre-commit install

```

### Release setup

To release a new version:

```sh

make release bump=$$VERSION_PART_TO_BUMP$$

```

To issue the next version in line, specify which part to bump,

like `make release bump=minor` or `make release bump=devnum`. This is typically done from the

main branch, except when releasing a beta (in which case the beta is released from main,

and the previous stable branch is released from said branch).

## Want to help?

Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our

guidelines for [contributing](https://py-evm.readthedocs.io/en/latest/contributing.html) and then check out one of our issues that are labeled [Good First Issue](https://github.com/ethereum/py-evm/issues?q=is%3Aissue+is%3Aopen+label%3A%22Good+First+Issue%22).