# ethereum/pyethereum

Next generation cryptocurrency network

Repository: https://github.com/ethereum/pyethereum
Canonical: https://ross.abutalabs.com/products/pyethereum
License Family: other
Archived: true
Last push: 2022-02-19T20:59:11+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4635, "days_push": 1656, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2661, forks 717 (observed 2026-08-28T04:07:07.498545+00:00)

## What it is
PyEthereum was a Python implementation of the Ethereum protocol, the next-generation cryptocurrency network. The project is officially deprecated and no longer supported, with Py-EVM suggested as its successor.

## Use cases
- run an ethereum node in python
- interact with the ethereum blockchain from python
- study a legacy ethereum protocol implementation
- understand how ethereum clients work

## When to choose
- you need to read or study historical ethereum client code
- you are researching the evolution of ethereum implementations

## When to avoid
- you want to build anything on ethereum today - use py-evm or web3.py instead
- you need a maintained or supported library
- you need security updates for production use

## Facets
- artifact type: library
- maturity: abandoned
- function: blockchain, cryptography, sdk
- domain: blockchain, developer-tools
- platform: python, cross-platform
- tags: ethereum, deprecated, cryptocurrency-network, legacy, cryptocurrency

## Member repositories
- ethereum/pyethereum (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:07.498545+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:18:22.786466+00:00, confidence not recorded.
  - readme: https://github.com/ethereum/pyethereum (fetched 2026-08-28T04:07:07.498545+00:00, sha c27a2ae028e3)
- Data as of 2026-08-30T08:39:29.467469+00:00.