actions/setup-python
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15
README.md
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@ -24,6 +24,7 @@ This action provides the following functionality for GitHub Actions users:
See [action.yml](action.yml) See [action.yml](action.yml)
**Python**
```yaml ```yaml
steps: steps:
- uses: actions/checkout@v3 - uses: actions/checkout@v3
@ -32,6 +33,16 @@ steps:
python-version: '3.10' python-version: '3.10'
- run: python my_script.py - run: python my_script.py
``` ```
**PyPy**
```yaml
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 'pypy3.7'
- run: python my_script.py
```
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`. 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`.
The action will first check the local [tool cache](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/). The action will first check the local [tool cache](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/).
@ -40,11 +51,11 @@ For information regarding locally cached versions of Python/PyPy on GitHub hoste
## Supported version syntax ## Supported version syntax
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. The `python-version` input supports the [Semantic Versioning Specification](https://semver.org/) and some special version notations (e.g. `semver ranges`, `x.y-dev syntax`, etc), 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.
## Supported architectures ## Supported architectures
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`. Using `architecture` input it's possible to specify required python's interpreter architecture: `x86` or `x64`. If input is not specified the architecture defaults to `x64`.
## Caching packages dependencies ## Caching packages dependencies

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docs/advanced-usage.md
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@ -36,7 +36,7 @@ steps:
- 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. - 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. - 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: You can specify **only a major and minor version** if you are okay with the most recent patch version being used:
```yaml ```yaml
steps: steps:
@ -72,7 +72,7 @@ steps:
- run: python my_script.py - 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: You can also use several types of ranges that are specified in [semver](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): - **[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):
@ -95,14 +95,13 @@ steps:
python-version: '3.x' python-version: '3.x'
- run: python my_script.py - 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. Please refer to the [Advanced range syntax section](https://github.com/npm/node-semver#advanced-range-syntax) of the [semver](https://github.com/npm/node-semver) to check other available range syntaxes.
## Specifying a PyPy version ## 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 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. 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 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 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-v7.3.3 or pypy-3.7-v7.3.3 # Python 3.7 and PyPy 7.3.3
@ -122,7 +121,6 @@ jobs:
python-version: python-version:
- 'pypy3.7' # the latest available version of PyPy that supports Python 3.7 - '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 - 'pypy3.7-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: steps:
- uses: actions/checkout@v3 - uses: actions/checkout@v3
- uses: actions/setup-python@v4 - uses: actions/setup-python@v4
@ -130,7 +128,7 @@ jobs:
python-version: ${{ matrix.python-version }} python-version: ${{ matrix.python-version }}
- run: python my_script.py - 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. More details on PyPy syntax can be found in the [Available versions of PyPy](#pypy) section.
## Matrix Testing ## Matrix Testing
@ -239,17 +237,6 @@ steps:
- run: poetry install - run: poetry install
- run: poetry run pytest - 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** **Using a list of file paths to cache dependencies**
```yaml ```yaml
@ -266,6 +253,17 @@ steps:
run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
- run: pipenv install - run: pipenv install
``` ```
**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 wildcard patterns to cache dependencies** **Using a list of wildcard patterns to cache dependencies**
```yaml ```yaml
@ -287,7 +285,7 @@ steps:
### `python-version` ### `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). Using **python-version** output it's possible to get the installed by action Pytho/PyPy 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 the exact installed version (e.g. 3.10.1).
```yaml ```yaml
jobs: jobs:
@ -304,7 +302,7 @@ jobs:
### `python-path` ### `python-path`
**python-path** output is available with the absolute path of the python interpreter executable if you need it: **python-path** output is available with the absolute path of the Python/PyPy interpreter executable if you need it:
```yaml ```yaml
jobs: jobs:
@ -318,12 +316,29 @@ jobs:
python-version: "3.10" python-version: "3.10"
- run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version - run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version
``` ```
### `cache-hit`
**cache-hit** output is available with a boolean value that indicates whether a cache hit occured on the primary key:
```
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
id: cp310
with:
python-version: "3.8.0"
cache: "poetry"
- run: echo '${{ steps.cp310.outputs.cache-hit }}' # true if cache-hit occured on the primary key
```
## Evironment variables ## Evironment variables
These environment variables become available after setup-python action execution: These environment variables become available after setup-python action execution:
| Env.Variable | Description | | **Env.variable** | **Description** |
| ----------- | ----------- | | ----------- | ----------- |
| pythonLocation |Contains the absolute path to the folder where the requested version of Python or PyPy is installed| | 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 | | Python_ROOT_DIR | https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython |
@ -333,10 +348,10 @@ These environment variables become available after setup-python action execution
## Using `update-environment` flag ## Using `update-environment` flag
The `update-environment` flag defaults to `true`. 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. With this setting, the action will add/update environment variables (e.g. `PATH`, `PKG_CONFIG_PATH`, `pythonLocation`) for Python/PyPy to just work out of the box.
If `update-environment` is set to `false`, the action will not add/update environment variables. 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. This can prove useful if you want the only side-effect to be to ensure Python/PyPy is installed and rely on the `python-path` output to run executable.
Such a requirement on side-effect could be because you don't want your composite action messing with your user's workflows. Such a requirement on side-effect could be because you don't want your composite action messing with your user's workflows.
```yaml ```yaml
@ -382,7 +397,7 @@ Such a requirement on side-effect could be because you don't want your composite
# Hosted tool cache # 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 tool 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 tool cache and adding it to PATH. 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 the tool cache with Python and PyPy installed. `setup-python` works by taking a specific version of Python or PyPy from this tool cache and adding it to PATH.
|| Location | || Location |
|------|-------| |------|-------|