Skip to main content

eth-hash: The Ethereum hashing function, keccak256, sometimes (erroneously) called sha3

Project description

eth-hash

Join the conversation on Discord Build Status PyPI version Python versions Docs build

The Ethereum hashing function, keccak256, sometimes (erroneously) called sha3

Note: the similarly named pyethash has a completely different use: it generates proofs of work.

This is a low-level library, intended to be used internally by other Ethereum tools. If you're looking for a convenient hashing tool, check out eth_utils.keccak() which will be a little friendlier, and provide access to other helpful utilities.

Read more in the documentation on ReadTheDocs. View the change log.

Quickstart

python -m pip install "eth-hash[pycryptodome]"
>>> from eth_hash.auto import keccak
>>> keccak(b'')
b"\xc5\xd2F\x01\x86\xf7#<\x92~}\xb2\xdc\xc7\x03\xc0\xe5\x00\xb6S\xca\x82';{\xfa\xd8\x04]\x85\xa4p"

See the docs for more about choosing and installing backends.

Developer Setup

If you would like to hack on eth-hash, please check out the Snake Charmers Tactical Manual for information on how we do:

  • Testing
  • Pull Requests
  • Documentation

We use pre-commit 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

You can set up your dev environment with:

git clone git@github.com:ethereum/eth-hash.git
cd eth-hash
python -m virtualenv venv
. venv/bin/activate
python -m pip install -e ".[dev]"
pre-commit install

Release setup

To release a new version:

make release bump=$$VERSION_PART_TO_BUMP$$

How to bumpversion

The version format for this repo is {major}.{minor}.{patch} for stable, and {major}.{minor}.{patch}-{stage}.{devnum} for unstable (stage can be alpha or beta).

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 master branch, except when releasing a beta (in which case the beta is released from master, and the previous stable branch is released from said branch).

If you are in a beta version, make release bump=stage will switch to a stable.

To issue an unstable version when the current version is stable, specify the new version explicitly, like make release bump="--new-version 4.0.0-alpha.1 devnum"

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

eth-hash-0.7.0.tar.gz (12.5 kB view hashes)

Uploaded Source

Built Distribution

eth_hash-0.7.0-py3-none-any.whl (8.7 kB view hashes)

Uploaded Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page