ethereum-utils

Utility functions for working with ethereum related codebases.

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Ethereum Utilities

Join the chat at https://gitter.im/ethereum/eth-utils Build Status PyPI version Python versions Docs build

Common utility functions for python code that interacts with Ethereum

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

Quickstart

pip install eth-utils

Developer Setup

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

  • Testing
  • Pull Requests
  • Code Style
  • Documentation

Development Environment Setup

You can set up your dev environment with:

git clone git@github.com:ethereum/eth-utils.git
cd eth-utils
virtualenv -p python3 venv
. venv/bin/activate
pip install -e .[dev]
pip install -e eth-hash[pycryptodome]

Testing Setup

During development, you might like to have tests run on every file save.

Show flake8 errors on file change:

# Test flake8
when-changed -v -s -r -1 eth_utils/ tests/ -c "clear; flake8 eth_utils tests && echo 'flake8 success' || echo 'error'"

Run multi-process tests in one command, but without color:

# in the project root:
pytest --numprocesses=4 --looponfail --maxfail=1
# the same thing, succinctly:
pytest -n 4 -f --maxfail=1

Run in one thread, with color and desktop notifications:

cd venv
ptw --onfail "notify-send -t 5000 'Test failure ⚠⚠⚠⚠⚠' 'python 3 test on eth-utils failed'" ../tests ../eth_utils

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"

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