mirror of https://github.com/actions/setup-python
Rearrange README.md, add advanced-usage.md
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README.md
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README.md
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# setup-python V4
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# setup-python
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<p align="left">
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<p align="left">
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<a href="https://github.com/actions/setup-python"><img alt="GitHub Actions status" src="https://github.com/actions/setup-python/workflows/Main%20workflow/badge.svg"></a>
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<a href="https://github.com/actions/setup-python"><img alt="GitHub Actions status" src="https://github.com/actions/setup-python/workflows/Main%20workflow/badge.svg"></a>
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</p>
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</p>
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This action sets up a Python environment for use in actions by:
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This action provides the following functionality for GitHub Actions users:
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- optionally installing and adding to PATH a version of Python that is already installed in the tools cache.
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- Optionally downloading and installing the requested version of Python/PyPy and adding it to the PATH
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- downloading, installing and adding to PATH an available version of Python from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases)) if a specific version is not available in the tools cache.
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- Optionally caching dependencies for pip, pipenv and poetry
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- failing if a specific version of Python is not preinstalled or available for download.
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- Registering problem matchers for error output
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- optionally caching dependencies for pip, pipenv and poetry.
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- registering problem matchers for error output.
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# What's new
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## Table of contents
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- Ability to download, install and set up Python packages from `actions/python-versions` that do not come preinstalled on runners.
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- [Basic usage](#basic-usage)
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- Allows for pinning to a specific patch version of Python without the worry of it ever being removed or changed.
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- [Supported version syntax](#supported-version-syntax)
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- Automatic setup and download of Python packages if using a self-hosted runner.
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- [Supported architectures](#supported-architectures)
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- Support for pre-release versions of Python.
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- [Caching packages dependencies](#caching-packages-dependencies)
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- Support for installing any version of PyPy on-flight
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- [Advanced usage](#advanced-usage)
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- Support for built-in caching of pip, pipenv and poetry dependencies
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- [License](#license)
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- Support for `.python-version` file
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- [Contributions](#contributions)
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# Usage
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## Basic usage
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See [action.yml](action.yml)
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See [action.yml](action.yml)
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Basic:
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```yaml
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```yaml
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steps:
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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- uses: actions/setup-python@v4 # <- v4 is a major release tag of the action: https://github.com/actions/setup-python/tags
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with:
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with:
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python-version: '3.x' # Version range or exact version of a Python version to use, using SemVer's version range syntax
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python-version: '3.10'
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architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
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- run: python my_script.py
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- run: python my_script.py
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```
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```
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The `python-version` input is optional. If not supplied, the Python/PyPy version from the PATH will be used. The default version of Python/PyPy in PATH vary between runners and can be changed unexpectedly so we recommend always use `setup-python`.
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Read Python version from file:
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The action will first check the local [toolcache](docs/advanced-usage.md#hosted-tool-cache) for a [semver](https://github.com/npm/node-semver#versions) match. If unable to find a specific version in the tool cache, the action will attempt to download a version of Python from [GitHub Releases](https://github.com/actions/python-versions/releases) and for PyPy from the official [PyPy's dist](https://downloads.python.org/pypy/).
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```yaml
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version-file: '.python-version' # Read python version from a file
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- run: python my_script.py
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```
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Matrix Testing:
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For information regarding locally cached versions of Python/PyPy on GitHub hosted runners, check out [GitHub Actions Virtual Environments](https://github.com/actions/virtual-environments).
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```yaml
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jobs:
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build:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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python-version: [ '2.x', '3.x', 'pypy2.7', 'pypy3.7', 'pypy3.8' ]
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name: Python ${{ matrix.python-version }} sample
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steps:
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- uses: actions/checkout@v3
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- name: Set up Python
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uses: actions/setup-python@v4
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with:
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python-version: ${{ matrix.python-version }}
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architecture: x64
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- run: python my_script.py
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```
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Exclude a specific Python version:
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## Supported version syntax
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```yaml
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jobs:
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build:
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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os: [ubuntu-latest, macos-latest, windows-latest]
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python-version: ['2.7', '3.7', '3.8', '3.9', '3.10', 'pypy2.7', 'pypy3.8']
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exclude:
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- os: macos-latest
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python-version: '3.8'
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- os: windows-latest
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python-version: '3.6'
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steps:
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- uses: actions/checkout@v3
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- name: Set up Python
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uses: actions/setup-python@v4
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with:
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python-version: ${{ matrix.python-version }}
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- name: Display Python version
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run: python --version
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```
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Download and set up a version of Python that does not come preinstalled on an image:
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The `python-version` input supports the [Semantic Versioning Specification](https://github.com/npm/node-semver#versions) and some special version notations (e.g. `x.y-dev`), for detailed examples please refer to the section: [Using python-version input](docs/advanced-usage.md#using-python-version-input) of the [Advanced usage](docs/advanced-usage.md) guide.
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```yaml
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jobs:
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build:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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# in this example, there is a newer version already installed, 3.7.7, so the older version will be downloaded
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python-version: ['3.7.4', '3.8', '3.9', '3.10']
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version: ${{ matrix.python-version }}
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- run: python my_script.py
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```
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Download and set up an accurate pre-release version of Python:
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## Supported architectures
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```yaml
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version: '3.11.0-alpha.1'
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- run: python my_script.py
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```
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Download and set up the latest available version of Python (includes both pre-release and stable versions):
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Using `architecture` input it's possible to specify required python's interpreter architecture: `x86` or `x64`. If input is not specified it defaults to `x64`.
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```yaml
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version: '3.11.0-alpha - 3.11.0' # SemVer's version range syntax
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- run: python my_script.py
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```
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Download and set up the latest patch version of Python (for specified major & minor versions):
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## Caching packages dependencies
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```yaml
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version: '3.11-dev'
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- run: python my_script.py
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```
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Download and set up the latest stable version of Python (for specified major version):
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```yaml
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version: '3.x'
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- run: python my_script.py
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```
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Download and set up PyPy:
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```yaml
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jobs:
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build:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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python-version:
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- 'pypy3.7' # the latest available version of PyPy that supports Python 3.7
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- 'pypy3.7-v7.3.3' # Python 3.7 and PyPy 7.3.3
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- 'pypy3.8' # the latest available version of PyPy that supports Python 3.8
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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with:
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python-version: ${{ matrix.python-version }}
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- run: python my_script.py
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```
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More details on PyPy syntax and examples of using preview / nightly versions of PyPy can be found in the [Available versions of PyPy](#available-versions-of-pypy) section.
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An output is available with the absolute path of the python interpreter executable if you need it:
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```yaml
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v3
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- uses: actions/setup-python@v4
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id: cp310
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with:
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python-version: "3.10"
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- run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version
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```
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>The environment variable `pythonLocation` also becomes available after Python or PyPy installation. It contains the absolute path to the folder where the desired version of Python or PyPy is installed.
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# Getting started with Python + Actions
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Check out our detailed guide on using [Python with GitHub Actions](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/using-python-with-github-actions).
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# Available versions of Python
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`setup-python` is able to configure Python from two sources:
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- Preinstalled versions of Python in the tools cache on GitHub-hosted runners.
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- For detailed information regarding the available versions of Python that are installed, see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
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- For every minor version of Python, expect only the latest patch to be preinstalled.
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- If `3.8.1` is installed for example, and `3.8.2` is released, expect `3.8.1` to be removed and replaced by `3.8.2` in the tools cache.
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- If the exact patch version doesn't matter to you, specifying just the major and minor version will get you the latest preinstalled patch version. In the previous example, the version spec `3.8` will use the `3.8.2` Python version found in the cache.
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- Use `-dev` instead of a patch number (e.g., `3.11-dev`) to install the latest patch version release for a given minor version, *alpha and beta releases included*.
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- Downloadable Python versions from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases)).
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- All available versions are listed in the [version-manifest.json](https://github.com/actions/python-versions/blob/main/versions-manifest.json) file.
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- If there is a specific version of Python that is not available, you can open an issue here
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**Note:** Python versions used in this action are generated in the [python-versions](https://github.com/actions/python-versions) repository. For macOS and Ubuntu images python versions are built from the source code. For Windows the python-versions repository uses installation executable. For more information please refer to the [python-versions](https://github.com/actions/python-versions) repository.
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# Available versions of PyPy
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`setup-python` is able to configure PyPy from two sources:
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- Preinstalled versions of PyPy in the tools cache on GitHub-hosted runners
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- For detailed information regarding the available versions of PyPy that are installed, see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
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- For the latest PyPy release, all versions of Python are cached.
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- Cache is updated with a 1-2 week delay. If you specify the PyPy version as `pypy3.7` or `pypy-3.7`, the cached version will be used although a newer version is available. If you need to start using the recently released version right after release, you should specify the exact PyPy version using `pypy3.7-v7.3.3` or `pypy-3.7-v7.3.3`.
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- Downloadable PyPy versions from the [official PyPy site](https://downloads.python.org/pypy/).
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- All available versions that we can download are listed in [versions.json](https://downloads.python.org/pypy/versions.json) file.
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- PyPy < 7.3.3 are not available to install on-flight.
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- If some versions are not available, you can open an issue in https://foss.heptapod.net/pypy/pypy/
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# Hosted Tool Cache
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GitHub hosted runners have a tools cache that comes with a few versions of Python + PyPy already installed. This tools cache helps speed up runs and tool setup by not requiring any new downloads. There is an environment variable called `RUNNER_TOOL_CACHE` on each runner that describes the location of this tools cache and there is where you will find Python and PyPy installed. `setup-python` works by taking a specific version of Python or PyPy in this tools cache and adding it to PATH.
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|| Location |
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|------|-------|
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|**Tool Cache Directory** |`RUNNER_TOOL_CACHE`|
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|**Python Tool Cache**|`RUNNER_TOOL_CACHE/Python/*`|
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|**PyPy Tool Cache**|`RUNNER_TOOL_CACHE/PyPy/*`|
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GitHub virtual environments are setup in [actions/virtual-environments](https://github.com/actions/virtual-environments). During the setup, the available versions of Python and PyPy are automatically downloaded, setup and documented.
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- Tools cache setup for Ubuntu: [Install-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/Install-Toolset.ps1) [Configure-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/Configure-Toolset.ps1)
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- Tools cache setup for Windows: [Install-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Install-Toolset.ps1) [Configure-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Configure-Toolset.ps1)
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# Specifying a Python version
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If there is a specific version of Python that you need and you don't want to worry about any potential breaking changes due to patch updates (going from `3.7.5` to `3.7.6` for example), you should specify the exact major, minor, and patch version (such as `3.7.5`)
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- The only downside to this is that set up will take a little longer since the exact version will have to be downloaded if the exact version is not already installed on the runner due to more recent versions.
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- MSI installers are used on Windows for this, so runs will take a little longer to set up vs Mac and Linux.
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You should specify only a major and minor version if you are okay with the most recent patch version being used.
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- There will be a single patch version already installed on each runner for every minor version of Python that is supported.
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- The patch version that will be preinstalled, will generally be the latest and every time there is a new patch released, the older version that is preinstalled will be replaced.
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- Using the most recent patch version will result in a very quick setup since no downloads will be required since a locally installed version Python on the runner will be used.
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# Specifying a PyPy version
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The version of PyPy should be specified in the format `pypy<python_version>[-v<pypy_version>]` or `pypy-<python_version>[-v<pypy_version>]`.
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The `<pypy_version>` parameter is optional and can be skipped. The latest version will be used in this case.
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```
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pypy3.7 or pypy-3.7 # the latest available version of PyPy that supports Python 3.7
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pypy3.8 or pypy-3.8 # the latest available version of PyPy that supports Python 3.8
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pypy2.7 or pypy-2.7 # the latest available version of PyPy that supports Python 2.7
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pypy3.7-v7.3.3 or pypy-3.7-v7.3.3 # Python 3.7 and PyPy 7.3.3
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pypy3.7-v7.x or pypy-3.7-v7.x # Python 3.7 and the latest available PyPy 7.x
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pypy3.7-v7.3.3rc1 or pypy-3.7-v7.3.3rc1 # Python 3.7 and preview version of PyPy
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pypy3.7-nightly or pypy-3.7-nightly # Python 3.7 and nightly PyPy
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```
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Note: `pypy2` and `pypy3` have been removed in v3. Use the format above instead.
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|
||||||
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|
||||||
# Caching packages dependencies
|
|
||||||
|
|
||||||
The action has built-in functionality for caching and restoring dependencies. It uses [actions/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood for caching dependencies but requires less configuration settings. Supported package managers are `pip`, `pipenv` and `poetry`. The `cache` input is optional, and caching is turned off by default.
|
The action has built-in functionality for caching and restoring dependencies. It uses [actions/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood for caching dependencies but requires less configuration settings. Supported package managers are `pip`, `pipenv` and `poetry`. The `cache` input is optional, and caching is turned off by default.
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||||||
|
|
||||||
The action defaults to searching for a dependency file (`requirements.txt` for pip, `Pipfile.lock` for pipenv or `poetry.lock` for poetry) in the repository, and uses its hash as a part of the cache key. Use `cache-dependency-path` for cases where multiple dependency files are used, they are located in different subdirectories or different files for the hash want to be used.
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The action defaults to searching for a dependency file (`requirements.txt` for pip, `Pipfile.lock` for pipenv or `poetry.lock` for poetry) in the repository, and uses its hash as a part of the cache key. Input `cache-dependency-path` is used for cases when multiple dependency files are used, they are located in different subdirectories or different files for the hash want to be used.
|
||||||
|
|
||||||
- For pip, the action will cache global cache directory
|
- For `pip`, the action will cache global cache directory
|
||||||
- For pipenv, the action will cache virtualenv directory
|
- For `pipenv`, the action will cache virtualenv directory
|
||||||
- For poetry, the action will cache virtualenv directory
|
- For `poetry`, the action will cache virtualenv directory
|
||||||
|
|
||||||
**Please Note:** Restored cache will not be used if the requirements.txt file is not updated for a long time and a newer version of the dependency is available that can lead to an increase in total build time.
|
|
||||||
|
|
||||||
The requirements file format allows to specify dependency versions using logical operators (for example chardet>=3.0.4) or specify dependencies without any versions. In this case the pip install -r requirements.txt command will always try to install the latest available package version. To be sure that the cache will be used, please stick to a specific dependency version and update it manually if necessary.
|
|
||||||
|
|
||||||
**Caching pip dependencies:**
|
**Caching pip dependencies:**
|
||||||
|
|
||||||
|
|
@ -281,152 +64,31 @@ steps:
|
||||||
- uses: actions/setup-python@v4
|
- uses: actions/setup-python@v4
|
||||||
with:
|
with:
|
||||||
python-version: '3.9'
|
python-version: '3.9'
|
||||||
cache: 'pip'
|
cache: 'pip' # caching pip dependencies
|
||||||
- run: pip install -r requirements.txt
|
- run: pip install -r requirements.txt
|
||||||
```
|
```
|
||||||
|
>**Note:** Restored cache will not be used if the requirements.txt file is not updated for a long time and a newer version of the dependency is available that can lead to an increase in total build time.
|
||||||
|
|
||||||
**Caching pipenv dependencies:**
|
>The requirements file format allows to specify dependency versions using logical operators (for example chardet>=3.0.4) or specify dependencies without any versions. In this case the pip install -r requirements.txt command will always try to install the latest available package version. To be sure that the cache will be used, please stick to a specific dependency version and update it manually if necessary.
|
||||||
```yaml
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
- uses: actions/setup-python@v4
|
|
||||||
with:
|
|
||||||
python-version: '3.9'
|
|
||||||
cache: 'pipenv'
|
|
||||||
- name: Install pipenv
|
|
||||||
run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
|
|
||||||
- run: pipenv install
|
|
||||||
```
|
|
||||||
|
|
||||||
**Caching poetry dependencies:**
|
See examples of using `cache` and `cache-dependency-path` for `pipenv` and `poetry` in the section: [Caching packages data](docs/advanced-usage.md#caching-packages-data) of the [Advanced usage](docs/advanced-usage.md) guide.
|
||||||
```yaml
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
- name: Install poetry
|
|
||||||
run: pipx install poetry
|
|
||||||
- uses: actions/setup-python@v4
|
|
||||||
with:
|
|
||||||
python-version: '3.9'
|
|
||||||
cache: 'poetry'
|
|
||||||
- run: poetry install
|
|
||||||
- run: poetry run pytest
|
|
||||||
```
|
|
||||||
|
|
||||||
**Using wildcard patterns to cache dependencies**
|
## Advanced usage
|
||||||
```yaml
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
- uses: actions/setup-python@v4
|
|
||||||
with:
|
|
||||||
python-version: '3.9'
|
|
||||||
cache: 'pip'
|
|
||||||
cache-dependency-path: '**/requirements-dev.txt'
|
|
||||||
- run: pip install -r subdirectory/requirements-dev.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
**Using a list of file paths to cache dependencies**
|
- [Using python-version input](docs/advanced-usage.md#using-python-version-input)
|
||||||
```yaml
|
- [Using python-version-file input](docs/advanced-usage.md#using-python-version-file-input)
|
||||||
steps:
|
- [Check latest version](docs/advanced-usage.md#check-latest-version)
|
||||||
- uses: actions/checkout@v3
|
- [Caching packages data](docs/advanced-usage.md#caching-packages-data)
|
||||||
- uses: actions/setup-python@v4
|
- [Environment variables and action's outputs](docs/advanced-usage.md#environment-variables-and-actions-outputs)
|
||||||
with:
|
- [Available versions of Python and PyPy](docs/advanced-usage.md#available-versions-of-python-and-pypy)
|
||||||
python-version: '3.9'
|
- [Hosted Toolcache](docs/advanced-usage.md#hosted-tool-cache)
|
||||||
cache: 'pipenv'
|
- [Using `setup-python` with a self hosted runner](docs/advanced-usage.md#using-setup-python-with-a-self-hosted-runner)
|
||||||
cache-dependency-path: |
|
- [Using `setup-python` on GHES](docs/advanced-usage.md#using-setup-python-on-ghes)
|
||||||
server/app/Pipfile.lock
|
|
||||||
__test__/app/Pipfile.lock
|
|
||||||
- name: Install pipenv
|
|
||||||
run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
|
|
||||||
- run: pipenv install
|
|
||||||
```
|
|
||||||
|
|
||||||
**Using a list of wildcard patterns to cache dependencies**
|
## License
|
||||||
```yaml
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
- uses: actions/setup-python@v4
|
|
||||||
with:
|
|
||||||
python-version: '3.10'
|
|
||||||
cache: 'pip'
|
|
||||||
cache-dependency-path: |
|
|
||||||
**/setup.cfg
|
|
||||||
**/requirements*.txt
|
|
||||||
- run: pip install -e . -r subdirectory/requirements-dev.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
# Environment variables
|
|
||||||
|
|
||||||
The `update-environment` flag defaults to `true`.
|
|
||||||
With this setting, the action will add/update environment variables (e.g. `PATH`, `PKG_CONFIG_PATH`, `pythonLocation`) for `python` to just work out of the box.
|
|
||||||
|
|
||||||
If `update-environment` is set to `false`, the action will not add/update environment variables.
|
|
||||||
This can prove useful if you want the only side-effect to be to ensure python is installed and rely on the `python-path` output to run python.
|
|
||||||
Such a requirement on side-effect could be because you don't want your composite action messing with your user's workflows.
|
|
||||||
|
|
||||||
```yaml
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
- uses: actions/setup-python@v4
|
|
||||||
id: cp310
|
|
||||||
with:
|
|
||||||
python-version: '3.10'
|
|
||||||
update-environment: false
|
|
||||||
- run: ${{ steps.cp310.outputs.python-path }} my_script.py
|
|
||||||
```
|
|
||||||
|
|
||||||
# Using `setup-python` with a self hosted runner
|
|
||||||
|
|
||||||
Python distributions are only available for the same [environments](https://github.com/actions/virtual-environments#available-environments) that GitHub Actions hosted environments are available for. If you are using an unsupported version of Ubuntu such as `19.04` or another Linux distribution such as Fedora, `setup-python` will not work. If you have a supported self-hosted runner and you would like to use `setup-python`, there are a few extra things you need to make sure are set up so that new versions of Python can be downloaded and configured on your runner.
|
|
||||||
|
|
||||||
If you are experiencing problems while configuring Python on your self-hosted runner, turn on [step debugging](https://github.com/actions/toolkit/blob/main/docs/action-debugging.md#step-debug-logs) to see addition logs.
|
|
||||||
|
|
||||||
### Windows
|
|
||||||
|
|
||||||
- Your runner needs to be running with administrator privileges so that the appropriate directories and files can be set up when downloading and installing a new version of Python for the first time.
|
|
||||||
- If your runner is configured as a service, make sure the account that is running the service has the appropriate write permissions so that Python can get installed. The default `NT AUTHORITY\NETWORK SERVICE` should be sufficient.
|
|
||||||
- You need `7zip` installed and added to your `PATH` so that the downloaded versions of Python files can be extracted properly during first-time setup.
|
|
||||||
- MSI installers are used when setting up Python on Windows. A word of caution as MSI installers update registry settings.
|
|
||||||
- The 3.8 MSI installer for Windows will not let you install another 3.8 version of Python. If `setup-python` fails for a 3.8 version of Python, make sure any previously installed versions are removed by going to "Apps & Features" in the Settings app.
|
|
||||||
|
|
||||||
### Linux
|
|
||||||
|
|
||||||
- The Python packages that are downloaded from `actions/python-versions` are originally compiled from source in `/opt/hostedtoolcache/` with the [--enable-shared](https://github.com/actions/python-versions/blob/94f04ae6806c6633c82db94c6406a16e17decd5c/builders/ubuntu-python-builder.psm1#L35) flag, which makes them non-relocatable.
|
|
||||||
- By default runner downloads and install the tools to `/opt/hostedtoolcache`. The environment variable called `AGENT_TOOLSDIRECTORY` can be set to change this location.
|
|
||||||
- In the same shell that your runner is using, type `export AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`.
|
|
||||||
- A more permanent way of setting the environment variable is to create a `.env` file in the same directory as your runner and to add `AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`. This ensures the variable is always set if your runner is configured as a service.
|
|
||||||
- Create a directory called `hostedtoolcache` inside `/opt`.
|
|
||||||
- The user starting the runner must have write permission to the `/opt/hostedtoolcache` directory. It is not possible to start the Linux runner with `sudo` and the `/opt` directory usually requires root privileges to write to. Check the current user and group that the runner belongs to by typing `ls -l` inside the runners root directory.
|
|
||||||
- The runner can be granted write access to the `/opt/hostedtoolcache` directory using a few techniques:
|
|
||||||
- The user starting the runner is the owner, and the owner has write permission.
|
|
||||||
- The user starting the runner is in the owning group, and the owning group has write permission.
|
|
||||||
- All users have write permission.
|
|
||||||
- One quick way to grant access is to change the user and group of `/opt/hostedtoolcache` to be the same as the runners using `chown`.
|
|
||||||
- `sudo chown runner-user:runner-group /opt/hostedtoolcache/`.
|
|
||||||
- If your runner is configured as a service and you run into problems, make sure the user that the service is running as is correct. For more information, you can [check the status of your self-hosted runner](https://help.github.com/en/actions/hosting-your-own-runners/configuring-the-self-hosted-runner-application-as-a-service#checking-the-status-of-the-service).
|
|
||||||
|
|
||||||
### Mac
|
|
||||||
|
|
||||||
- The same setup that applies to `Linux` also applies to `Mac`, just with a different tools cache directory.
|
|
||||||
- Create a directory called `/Users/runner/hostedtoolcache`.
|
|
||||||
- Set the `AGENT_TOOLSDIRECTORY` environment variable to `/Users/runner/hostedtoolcache`.
|
|
||||||
- Change the permissions of `/Users/runner/hostedtoolcache` so that the runner has write access.
|
|
||||||
|
|
||||||
|
|
||||||
# Using Python without `setup-python`
|
|
||||||
|
|
||||||
`setup-python` helps keep your dependencies explicit and ensures consistent behavior between different runners. If you use `python` in a shell on a GitHub hosted runner without `setup-python` it will default to whatever is in PATH. The default version of Python in PATH vary between runners and can change unexpectedly so we recommend you always use `setup-python`.
|
|
||||||
|
|
||||||
# Using `setup-python` on GHES
|
|
||||||
|
|
||||||
`setup-python` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Python distributions, `setup-python` downloads distributions from [`actions/python-versions`](https://github.com/actions/python-versions) on github.com (outside of the appliance). These calls to `actions/python-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If more requests are made within the time frame, then you will start to see rate-limit errors during download that read `##[error]API rate limit exceeded for...`.
|
|
||||||
|
|
||||||
To avoid hitting rate-limit problems, we recommend [setting up your own runner tool cache](https://docs.github.com/en/enterprise-server@2.22/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access#about-the-included-setup-actions-and-the-runner-tool-cache).
|
|
||||||
|
|
||||||
# License
|
|
||||||
|
|
||||||
The scripts and documentation in this project are released under the [MIT License](LICENSE).
|
The scripts and documentation in this project are released under the [MIT License](LICENSE).
|
||||||
|
|
||||||
# Contributions
|
## Contributions
|
||||||
|
|
||||||
Contributions are welcome! See our [Contributor's Guide](docs/contributors.md).
|
Contributions are welcome! See our [Contributor's Guide](docs/contributors.md).
|
||||||
|
|
@ -0,0 +1,439 @@
|
||||||
|
# Table of contents
|
||||||
|
- [Using python-version input](#using-python-version-file-input)
|
||||||
|
- [Specifying a Python version](#specifying-a-python-version)
|
||||||
|
- [Specifying a PyPy version](#specifying-a-pypy-version)
|
||||||
|
- [Matrix Testing](#matrix-testing)
|
||||||
|
- [Using python-version-file input](#using-python-version-file-input)
|
||||||
|
- [Check latest version](#check-latest-version)
|
||||||
|
- [Caching packages data](#caching-packages-data)
|
||||||
|
- [Environment variables and action's outputs](#environment-variables-and-actions-outputs)
|
||||||
|
- [Available versions of Python and PyPy](#available-versions-of-python-and-pypy)
|
||||||
|
- [Python](#python)
|
||||||
|
- [PyPy](#pypy)
|
||||||
|
- [Hosted Tool Cache](#hosted-tool-cache)
|
||||||
|
- [Using `setup-python` with a self hosted runner](#using-setup-python-with-a-self-hosted-runner)
|
||||||
|
- [Windows](#windows)
|
||||||
|
- [Linux](#linux)
|
||||||
|
- [MacOS](#macos)
|
||||||
|
- [Using `setup-python` on GHES](#using-setup-python-on-ghes)
|
||||||
|
|
||||||
|
# Using python-version input
|
||||||
|
|
||||||
|
The `python-version` input is used to specify the required version of Python or PyPy.
|
||||||
|
|
||||||
|
## Specifying a Python version
|
||||||
|
|
||||||
|
If there is a specific version of Python that you need and you don't want to worry about any potential breaking changes due to patch updates (going from `3.7.5` to `3.7.6` for example), you should specify the **exact major, minor, and patch version** (such as `3.7.5`):
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.7.5'
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
- The only downside to this is that set up will take a little longer since the exact version will have to be downloaded if the exact version is not already installed on the runner due to more recent versions.
|
||||||
|
- MSI installers are used on Windows for this, so runs will take a little longer to set up vs MacOS and Linux.
|
||||||
|
|
||||||
|
You should specify **only a major and minor version** if you are okay with the most recent patch version being used:
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.7'
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
- There will be a single patch version already installed on each runner for every minor version of Python that is supported.
|
||||||
|
- The patch version that will be preinstalled, will generally be the latest and every time there is a new patch released, the older version that is preinstalled will be replaced.
|
||||||
|
- Using the most recent patch version will result in a very quick setup since no downloads will be required since a locally installed version Python on the runner will be used.
|
||||||
|
|
||||||
|
You can specify version with **prerelease tag** to download and set up an accurate pre-release version of Python:
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.11.0-alpha.1'
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
|
||||||
|
It's also possible to use **x.y-dev syntax** to download and set up the latest patch version of Python, alpha and beta releases included. (for specified major & minor versions):
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.11-dev'
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
|
||||||
|
You can also use several types of ranges that are specified in [Semantic Versioning Specification](https://github.com/npm/node-semver#ranges), for instance:
|
||||||
|
|
||||||
|
- **[hyphen ranges](https://github.com/npm/node-semver#hyphen-ranges-xyz---abc)** to download and set up the latest available version of Python (includes both pre-release and stable versions):
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.11.0-alpha - 3.11.0'
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
|
||||||
|
- **[x-ranges](https://github.com/npm/node-semver#x-ranges-12x-1x-12-)** to specify the latest stable version of Python (for specified major version):
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.x'
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
Please refer to the [Advanced range syntax section](https://github.com/npm/node-semver#advanced-range-syntax) of the [Semantic Versioning Specification](https://github.com/npm/node-semver) to check other available range syntaxes.
|
||||||
|
|
||||||
|
## Specifying a PyPy version
|
||||||
|
The version of PyPy should be specified in the format `pypy<python_version>[-v<pypy_version>]` or `pypy-<python_version>[-v<pypy_version>]`.
|
||||||
|
The `-v<pypy_version>` parameter is optional and can be skipped. The latest PyPy version will be used in this case.
|
||||||
|
|
||||||
|
```
|
||||||
|
pypy3.7 or pypy-3.7 # the latest available version of PyPy that supports Python 3.7
|
||||||
|
pypy3.8 or pypy-3.8 # the latest available version of PyPy that supports Python 3.8
|
||||||
|
pypy2.7 or pypy-2.7 # the latest available version of PyPy that supports Python 2.7
|
||||||
|
pypy3.7-v7.3.3 or pypy-3.7-v7.3.3 # Python 3.7 and PyPy 7.3.3
|
||||||
|
pypy3.7-v7.x or pypy-3.7-v7.x # Python 3.7 and the latest available PyPy 7.x
|
||||||
|
pypy3.7-v7.3.3rc1 or pypy-3.7-v7.3.3rc1 # Python 3.7 and preview version of PyPy
|
||||||
|
pypy3.7-nightly or pypy-3.7-nightly # Python 3.7 and nightly PyPy
|
||||||
|
```
|
||||||
|
|
||||||
|
Download and set up PyPy:
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
jobs:
|
||||||
|
build:
|
||||||
|
runs-on: ubuntu-latest
|
||||||
|
strategy:
|
||||||
|
matrix:
|
||||||
|
python-version:
|
||||||
|
- 'pypy3.7' # the latest available version of PyPy that supports Python 3.7
|
||||||
|
- 'pypy3.7-v7.3.3' # Python 3.7 and PyPy 7.3.3
|
||||||
|
- 'pypy3.8' # the latest available version of PyPy that supports Python 3.8
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: ${{ matrix.python-version }}
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
More details on PyPy syntax and examples of using preview / nightly versions of PyPy can be found in the [Available versions of PyPy](#pypy) section.
|
||||||
|
|
||||||
|
## Matrix Testing
|
||||||
|
|
||||||
|
Using `setup-python` it's possible to use [matrix syntax](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix) to install several versions of Python/PyPy:
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
jobs:
|
||||||
|
build:
|
||||||
|
runs-on: ubuntu-latest
|
||||||
|
strategy:
|
||||||
|
matrix:
|
||||||
|
python-version: [ '2.x', '3.x', 'pypy2.7', 'pypy3.7', 'pypy3.8' ]
|
||||||
|
name: Python ${{ matrix.python-version }} sample
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- name: Set up Python
|
||||||
|
uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: ${{ matrix.python-version }}
|
||||||
|
architecture: x64
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
|
||||||
|
Exclude a specific Python version:
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
jobs:
|
||||||
|
build:
|
||||||
|
runs-on: ${{ matrix.os }}
|
||||||
|
strategy:
|
||||||
|
matrix:
|
||||||
|
os: [ubuntu-latest, macos-latest, windows-latest]
|
||||||
|
python-version: ['2.7', '3.7', '3.8', '3.9', '3.10', 'pypy2.7', 'pypy3.8']
|
||||||
|
exclude:
|
||||||
|
- os: macos-latest
|
||||||
|
python-version: '3.8'
|
||||||
|
- os: windows-latest
|
||||||
|
python-version: '3.6'
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- name: Set up Python
|
||||||
|
uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: ${{ matrix.python-version }}
|
||||||
|
- name: Display Python version
|
||||||
|
run: python --version
|
||||||
|
```
|
||||||
|
|
||||||
|
# Using python-version-file input
|
||||||
|
|
||||||
|
`setup-python` action has ability to read Python/PyPy version from a version file. `python-version-file` input is used for specifying path to the version file. If version file at the specified path doesn't exist action will try to find `.python-version` file implying that it as a default type of version files. If `.python-version` file doesn't exist also, action will fail with error.
|
||||||
|
|
||||||
|
>In case both `python-version` and `python-version-file` inputs are supplied, `python-version-file` input will be ignored due to its lower priority.
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version-file: '.python-version' # Read python version from a file .python-version
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
# Check latest version
|
||||||
|
|
||||||
|
The `check-latest` flag defaults to `false`. Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific `Python/PyPy` version is always used.
|
||||||
|
|
||||||
|
If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally cached version is not the most up-to-date, a `Python/PyPy` version will then be downloaded. Set `check-latest` to `true` if you want the most up-to-date `Python/PyPy` version to always be used.
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v3
|
||||||
|
with:
|
||||||
|
python-version: '3.7'
|
||||||
|
check-latest: true
|
||||||
|
- run: python my_script.py
|
||||||
|
```
|
||||||
|
> Setting `check-latest` to `true` has performance implications as downloading `Python/PyPy` versions is slower than using cached versions.
|
||||||
|
|
||||||
|
|
||||||
|
# Caching packages data
|
||||||
|
|
||||||
|
**Caching pipenv dependencies:**
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.9'
|
||||||
|
cache: 'pipenv'
|
||||||
|
- name: Install pipenv
|
||||||
|
run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
|
||||||
|
- run: pipenv install
|
||||||
|
```
|
||||||
|
|
||||||
|
**Caching poetry dependencies:**
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- name: Install poetry
|
||||||
|
run: pipx install poetry
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.9'
|
||||||
|
cache: 'poetry'
|
||||||
|
- run: poetry install
|
||||||
|
- run: poetry run pytest
|
||||||
|
```
|
||||||
|
**Using wildcard patterns to cache dependencies**
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.9'
|
||||||
|
cache: 'pip'
|
||||||
|
cache-dependency-path: '**/requirements-dev.txt'
|
||||||
|
- run: pip install -r subdirectory/requirements-dev.txt
|
||||||
|
```
|
||||||
|
|
||||||
|
**Using a list of file paths to cache dependencies**
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.9'
|
||||||
|
cache: 'pipenv'
|
||||||
|
cache-dependency-path: |
|
||||||
|
server/app/Pipfile.lock
|
||||||
|
__test__/app/Pipfile.lock
|
||||||
|
- name: Install pipenv
|
||||||
|
run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
|
||||||
|
- run: pipenv install
|
||||||
|
```
|
||||||
|
|
||||||
|
**Using a list of wildcard patterns to cache dependencies**
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
with:
|
||||||
|
python-version: '3.10'
|
||||||
|
cache: 'pip'
|
||||||
|
cache-dependency-path: |
|
||||||
|
**/setup.cfg
|
||||||
|
**/requirements*.txt
|
||||||
|
- run: pip install -e . -r subdirectory/requirements-dev.txt
|
||||||
|
```
|
||||||
|
|
||||||
|
# Environment variables and action's outputs
|
||||||
|
|
||||||
|
## Action's outputs
|
||||||
|
|
||||||
|
### `python-version`
|
||||||
|
|
||||||
|
Using **python-version** output it's possible to get the installed by action python's version. This output is useful when the input `python-version` given as a range (e.g. 3.8.0 - 3.10.0 ), but down in a workflow you need to operate with exact installed version (e.g. 3.10.1).
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
jobs:
|
||||||
|
build:
|
||||||
|
runs-on: ubuntu-latest
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
id: cp310
|
||||||
|
with:
|
||||||
|
python-version: "3.8.0 - 3.10.0"
|
||||||
|
- run: echo '${{ steps.cp310.outputs.python-version }}'
|
||||||
|
```
|
||||||
|
|
||||||
|
### `python-path`
|
||||||
|
|
||||||
|
**python-path** output is available with the absolute path of the python interpreter executable if you need it:
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
jobs:
|
||||||
|
build:
|
||||||
|
runs-on: ubuntu-latest
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
id: cp310
|
||||||
|
with:
|
||||||
|
python-version: "3.10"
|
||||||
|
- run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version
|
||||||
|
```
|
||||||
|
|
||||||
|
## Evironment variables
|
||||||
|
|
||||||
|
These environment variables become available after setup-python action execution:
|
||||||
|
|
||||||
|
| Env.Variable | Description |
|
||||||
|
| ----------- | ----------- |
|
||||||
|
| pythonLocation |Contains the absolute path to the folder where the requested version of Python or PyPy is installed|
|
||||||
|
| Python_ROOT_DIR | https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython |
|
||||||
|
| Python2_ROOT_DIR |https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2|
|
||||||
|
| Python3_ROOT_DIR |https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython3|
|
||||||
|
|
||||||
|
## Using `update-environment` flag
|
||||||
|
|
||||||
|
The `update-environment` flag defaults to `true`.
|
||||||
|
With this setting, the action will add/update environment variables (e.g. `PATH`, `PKG_CONFIG_PATH`, `pythonLocation`) for `python` to just work out of the box.
|
||||||
|
|
||||||
|
If `update-environment` is set to `false`, the action will not add/update environment variables.
|
||||||
|
This can prove useful if you want the only side-effect to be to ensure python is installed and rely on the `python-path` output to run python.
|
||||||
|
Such a requirement on side-effect could be because you don't want your composite action messing with your user's workflows.
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v3
|
||||||
|
- uses: actions/setup-python@v4
|
||||||
|
id: cp310
|
||||||
|
with:
|
||||||
|
python-version: '3.10'
|
||||||
|
update-environment: false
|
||||||
|
- run: ${{ steps.cp310.outputs.python-path }} my_script.py
|
||||||
|
```
|
||||||
|
# Available versions of Python and PyPy
|
||||||
|
## Python
|
||||||
|
|
||||||
|
`setup-python` is able to configure **Python** from two sources:
|
||||||
|
|
||||||
|
- Preinstalled versions of Python in the toolcache on GitHub-hosted runners.
|
||||||
|
- For detailed information regarding the available versions of Python that are installed, see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
|
||||||
|
- For every minor version of Python, expect only the latest patch to be preinstalled.
|
||||||
|
- If `3.8.1` is installed for example, and `3.8.2` is released, expect `3.8.1` to be removed and replaced by `3.8.2` in the tools cache.
|
||||||
|
- If the exact patch version doesn't matter to you, specifying just the major and minor version will get you the latest preinstalled patch version. In the previous example, the version spec `3.8` will use the `3.8.2` Python version found in the cache.
|
||||||
|
- Use `-dev` instead of a patch number (e.g., `3.11-dev`) to install the latest patch version release for a given minor version, *alpha and beta releases included*.
|
||||||
|
- Downloadable Python versions from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases)).
|
||||||
|
- All available versions are listed in the [version-manifest.json](https://github.com/actions/python-versions/blob/main/versions-manifest.json) file.
|
||||||
|
- If there is a specific version of Python that is not available, you can open an issue here
|
||||||
|
|
||||||
|
>**Note:** Python versions used in this action are generated in the [python-versions](https://github.com/actions/python-versions) repository. For macOS and Ubuntu images python versions are built from the source code. For Windows the python-versions repository uses installation executable. For more information please refer to the [python-versions](https://github.com/actions/python-versions) repository.
|
||||||
|
|
||||||
|
## PyPy
|
||||||
|
|
||||||
|
`setup-python` is able to configure **PyPy** from two sources:
|
||||||
|
|
||||||
|
- Preinstalled versions of PyPy in the tools cache on GitHub-hosted runners
|
||||||
|
- For detailed information regarding the available versions of PyPy that are installed, see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
|
||||||
|
- For the latest PyPy release, all versions of Python are cached.
|
||||||
|
- Cache is updated with a 1-2 week delay. If you specify the PyPy version as `pypy3.7` or `pypy-3.7`, the cached version will be used although a newer version is available. If you need to start using the recently released version right after release, you should specify the exact PyPy version using `pypy3.7-v7.3.3` or `pypy-3.7-v7.3.3`.
|
||||||
|
|
||||||
|
- Downloadable PyPy versions from the [official PyPy site](https://downloads.python.org/pypy/).
|
||||||
|
- All available versions that we can download are listed in [versions.json](https://downloads.python.org/pypy/versions.json) file.
|
||||||
|
- PyPy < 7.3.3 are not available to install on-flight.
|
||||||
|
- If some versions are not available, you can open an issue in https://foss.heptapod.net/pypy/pypy/
|
||||||
|
|
||||||
|
# Hosted Tool Cache
|
||||||
|
|
||||||
|
GitHub hosted runners have a tool cache that comes with a few versions of Python + PyPy already installed. This tool cache helps speed up runs and tool setup by not requiring any new downloads. There is an environment variable called `RUNNER_TOOL_CACHE` on each runner that describes the location of this tools cache and there is where you will find Python and PyPy installed. `setup-python` works by taking a specific version of Python or PyPy in this tools cache and adding it to PATH.
|
||||||
|
|
||||||
|
|| Location |
|
||||||
|
|------|-------|
|
||||||
|
|**Tool Cache Directory** |`RUNNER_TOOL_CACHE`|
|
||||||
|
|**Python Tool Cache**|`RUNNER_TOOL_CACHE/Python/*`|
|
||||||
|
|**PyPy Tool Cache**|`RUNNER_TOOL_CACHE/PyPy/*`|
|
||||||
|
|
||||||
|
GitHub virtual environments are set up in [actions/virtual-environments](https://github.com/actions/virtual-environments). During the setup, the available versions of Python and PyPy are automatically downloaded, set up and documented.
|
||||||
|
- Tool cache setup for Ubuntu: [Install-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/Install-Toolset.ps1) [Configure-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/Configure-Toolset.ps1)
|
||||||
|
- Tool cache setup for Windows: [Install-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Install-Toolset.ps1) [Configure-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Configure-Toolset.ps1)
|
||||||
|
|
||||||
|
|
||||||
|
# Using `setup-python` with a self hosted runner
|
||||||
|
|
||||||
|
Python distributions are only available for the same [environments](https://github.com/actions/virtual-environments#available-environments) that GitHub Actions hosted environments are available for. If you are using an unsupported version of Ubuntu such as `19.04` or another Linux distribution such as Fedora, `setup-python` will not work. If you have a supported self-hosted runner and you would like to use `setup-python`, there are a few extra things you need to make sure are set up so that new versions of Python can be downloaded and configured on your runner.
|
||||||
|
|
||||||
|
If you are experiencing problems while configuring Python on your self-hosted runner, turn on [step debugging](https://github.com/actions/toolkit/blob/main/docs/action-debugging.md#step-debug-logs) to see addition logs.
|
||||||
|
|
||||||
|
### Windows
|
||||||
|
|
||||||
|
- Your runner needs to be running with administrator privileges so that the appropriate directories and files can be set up when downloading and installing a new version of Python for the first time.
|
||||||
|
- If your runner is configured as a service, make sure the account that is running the service has the appropriate write permissions so that Python can get installed. The default `NT AUTHORITY\NETWORK SERVICE` should be sufficient.
|
||||||
|
- You need `7zip` installed and added to your `PATH` so that the downloaded versions of Python files can be extracted properly during first-time setup.
|
||||||
|
- MSI installers are used when setting up Python on Windows. A word of caution as MSI installers update registry settings.
|
||||||
|
- The 3.8 MSI installer for Windows will not let you install another 3.8 version of Python. If `setup-python` fails for a 3.8 version of Python, make sure any previously installed versions are removed by going to "Apps & Features" in the Settings app.
|
||||||
|
|
||||||
|
### Linux
|
||||||
|
|
||||||
|
- The Python packages that are downloaded from `actions/python-versions` are originally compiled from source in `/opt/hostedtoolcache/` with the [--enable-shared](https://github.com/actions/python-versions/blob/94f04ae6806c6633c82db94c6406a16e17decd5c/builders/ubuntu-python-builder.psm1#L35) flag, which makes them non-relocatable.
|
||||||
|
- By default runner downloads and install the tools to `/opt/hostedtoolcache`. The environment variable called `AGENT_TOOLSDIRECTORY` can be set to change this location.
|
||||||
|
- In the same shell that your runner is using, type `export AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`.
|
||||||
|
- A more permanent way of setting the environment variable is to create a `.env` file in the same directory as your runner and to add `AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`. This ensures the variable is always set if your runner is configured as a service.
|
||||||
|
- Create a directory called `hostedtoolcache` inside `/opt`.
|
||||||
|
- The user starting the runner must have write permission to the `/opt/hostedtoolcache` directory. It is not possible to start the Linux runner with `sudo` and the `/opt` directory usually requires root privileges to write to. Check the current user and group that the runner belongs to by typing `ls -l` inside the runners root directory.
|
||||||
|
- The runner can be granted write access to the `/opt/hostedtoolcache` directory using a few techniques:
|
||||||
|
- The user starting the runner is the owner, and the owner has write permission.
|
||||||
|
- The user starting the runner is in the owning group, and the owning group has write permission.
|
||||||
|
- All users have write permission.
|
||||||
|
- One quick way to grant access is to change the user and group of `/opt/hostedtoolcache` to be the same as the runners using `chown`.
|
||||||
|
- `sudo chown runner-user:runner-group /opt/hostedtoolcache/`.
|
||||||
|
- If your runner is configured as a service and you run into problems, make sure the user that the service is running as is correct. For more information, you can [check the status of your self-hosted runner](https://help.github.com/en/actions/hosting-your-own-runners/configuring-the-self-hosted-runner-application-as-a-service#checking-the-status-of-the-service).
|
||||||
|
|
||||||
|
### MacOS
|
||||||
|
|
||||||
|
- The same setup that applies to `Linux` also applies to `MacOS`, just with a different tools cache directory.
|
||||||
|
- Create a directory called `/Users/runner/hostedtoolcache`.
|
||||||
|
- Set the `AGENT_TOOLSDIRECTORY` environment variable to `/Users/runner/hostedtoolcache`.
|
||||||
|
- Change the permissions of `/Users/runner/hostedtoolcache` so that the runner has write access.
|
||||||
|
|
||||||
|
# Using `setup-python` on GHES
|
||||||
|
|
||||||
|
`setup-python` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Python distributions, `setup-python` downloads distributions from [`actions/python-versions`](https://github.com/actions/python-versions) on github.com (outside of the appliance). These calls to `actions/python-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If more requests are made within the time frame, then you will start to see rate-limit errors during download that read `##[error]API rate limit exceeded for...`.
|
||||||
|
|
||||||
|
To avoid hitting rate-limit problems, we recommend [setting up your own runner tool cache](https://docs.github.com/en/enterprise-server@2.22/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access#about-the-included-setup-actions-and-the-runner-tool-cache).
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