ssz: Python implementation of the Simple Serialization encoding and decoding
Project description
# py-ssz [](https://gitter.im/ethereum/py-ssz?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [](https://circleci.com/gh/ethereum/py-ssz) [](https://badge.fury.io/py/ssz) [](https://pypi-hypernode.com/pypi/ssz) [](http://ssz.readthedocs.io/en/latest/?badge=latest)
Python implementation of the Simple Serialization encoding and decoding
Read more in the [documentation on ReadTheDocs](https://ssz.readthedocs.io/). [View the change log](https://ssz.readthedocs.io/en/latest/releases.html).
## Quickstart
`sh pip install ssz `
## Developer Setup
If you would like to hack on py-ssz, please check out the [Ethereum Development Tactical Manual](https://github.com/pipermerriam/ethereum-dev-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:
`sh git clone git@github.com:ethereum/py-ssz.git cd py-ssz virtualenv -p python3 venv . venv/bin/activate pip install -e .[dev] `
### Testing Setup
During development, you might like to have tests run on every file save.
Show flake8 errors on file change:
`sh # Test flake8 when-changed -v -s -r -1 ssz/ tests/ -c "clear; flake8 ssz tests && echo 'flake8 success' || echo 'error'" `
Run multi-process tests in one command, but without color:
`sh # 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:
`sh cd venv ptw --onfail "notify-send -t 5000 'Test failure ⚠⚠⚠⚠⚠' 'python 3 test on py-ssz failed'" ../tests ../ssz `
### Release setup
For Debian-like systems: ` apt install pandoc `
To release a new version:
`sh 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). To include changes made with each release, update “docs/releases.rst” with the changes, and apply commit directly to master before release.
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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