Improve readme for 3.x and 3.11-dev style python-version (#441)

Remove duplicate code introduced in #440

.github/workflows/e2e-cache.yml

@@ -39,7 +39,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', 'pypy-3.7-v7.x']
+        python-version: ['3.9', 'pypy-3.9-v7.x']
     steps:
       - uses: actions/checkout@v3
       - name: Setup Python
@@ -48,11 +48,17 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: 'pipenv'
       - name: Install pipenv
-        run: pipx install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
+        shell: pwsh
         run: |
-          cd __tests__/data
-          pipenv install --verbose
+          mv ./__tests__/data/Pipfile.lock .
+          mv ./__tests__/data/Pipfile .
+          if ("${{ matrix.python-version }}" -Match "pypy") {
+            pipenv install --keep-outdated --python pypy
+          } else {
+            pipenv install --keep-outdated --python ${{ matrix.python-version }}
+          }
 
   python-poetry-dependencies-caching:
     name: Test poetry (Python ${{ matrix.python-version}}, ${{ matrix.os }})
@@ -61,7 +67,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', 'pypy-3.7-v7.x']
+        python-version: ['3.9', 'pypy-3.8']
     steps:
       - uses: actions/checkout@v3
       - name: Install poetry
@@ -102,7 +108,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', 'pypy-3.7-v7.x']
+        python-version: ['3.9', 'pypy-3.9-v7.x']
     steps:
       - uses: actions/checkout@v3
       - name: Setup Python
@@ -112,8 +118,14 @@ jobs:
           cache: 'pipenv'
           cache-dependency-path: '**/pipenv-requirements.txt'
       - name: Install pipenv
-        run: pipx install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
+        shell: pwsh
         run: |
-          cd __tests__/data
-          pipenv install --verbose
+          mv ./__tests__/data/Pipfile.lock .
+          mv ./__tests__/data/Pipfile .
+          if ("${{ matrix.python-version }}" -Match "pypy") {
+            pipenv install --keep-outdated --python pypy
+          } else {
+            pipenv install --keep-outdated --python ${{ matrix.python-version }}
+          }

.github/workflows/test-pypy.yml

@@ -18,10 +18,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest]
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-latest]
         pypy:
         - 'pypy-2.7'
         - 'pypy-3.7'
+        - 'pypy3.9'
         - 'pypy-2.7-v7.3.4'
         - 'pypy-3.7-v7.3.5'
         - 'pypy-3.7-v7.3.4'
@@ -29,18 +30,64 @@ jobs:
         - 'pypy-3.7-v7.x'
         - 'pypy-2.7-v7.3.4rc1'
         - 'pypy-3.7-nightly'
+        - 'pypy3.8-v7.3.7'
 
     steps:
       - name: Checkout
         uses: actions/checkout@v2
   
       - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
         uses: ./
         with:
           python-version: ${{ matrix.pypy }}
 
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
       - name: PyPy and Python version
         run: python --version
   
       - name: Run simple code
         run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert PyPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "pypy"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE=${{ matrix.pypy }}
+          EXECUTABLE=${EXECUTABLE/pypy-/pypy}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffixe
+          ${EXECUTABLE} --version
+        shell: bash
+
+  setup-pypy-noenv:
+    name: Setup PyPy ${{ matrix.pypy }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-latest]
+        pypy: ['pypy2.7', 'pypy3.7', 'pypy3.8', 'pypy3.9-nightly']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.pypy }}
+          update-environment: false
+
+      - name: PyPy and Python version
+        run: ${{ steps.setup-python.outputs.python-path }} --version
+
+      - name: Run simple code
+        run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'

.github/workflows/test-python.yml

@@ -10,45 +10,69 @@ on:
       - '**.md'
   schedule:
     - cron: 30 3 * * *
+  workflow_dispatch:
 
 jobs:
-  default-version:
-    name: Setup default version
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, windows-latest, ubuntu-20.04]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: setup default python 
-      uses: ./
-
-    - name: Validate version
-      run: python --version
-
-    - name: Run simple python code
-      run: python -c 'import math; print(math.factorial(5))'
-
   setup-versions-from-manifest:
     name: Setup ${{ matrix.python }} ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-20.04]
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
         python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: setup-python ${{ matrix.python }}
+      id: setup-python
       uses: ./
       with:
         python-version: ${{ matrix.python }}
 
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
+    - name: Validate version
+      run: |
+        $pythonVersion = (python --version)
+        if ("Python ${{ matrix.python }}" -ne "$pythonVersion"){
+          Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+          exit 1
+        }
+        $pythonVersion
+      shell: pwsh
+
+    - name: Run simple code
+      run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} version file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: build-version-file ${{ matrix.python }}
+      run: echo ${{ matrix.python }} > .python-version
+
+    - name: setup-python ${{ matrix.python }}
+      id: setup-python
+      uses: ./
+      with:
+        python-version-file: '.python-version'
+
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
     - name: Validate version
       run: |
         $pythonVersion = (python --version)
@@ -68,16 +92,21 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-20.04]
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: setup-python 3.9.0-beta.4
+      id: setup-python
       uses: ./
       with:
         python-version: '3.9.0-beta.4'
 
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
     - name: Validate version
       run: |
         $pythonVersion = (python --version)
@@ -91,3 +120,55 @@ jobs:
     - name: Run simple code
       run: python -c 'import math; print(math.factorial(5))'
 
+  setup-dev-version:
+    name: Setup 3.9-dev ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: setup-python 3.9-dev
+      id: setup-python
+      uses: ./
+      with:
+        python-version: '3.9-dev'
+
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
+    - name: Validate version
+      run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.9.') }}
+      shell: bash
+
+    - name: Run simple code
+      run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-noenv:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        python: ["3.7", "3.8", "3.9", "3.10"]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: setup-python ${{ matrix.python }}
+      id: setup-python
+      uses: ./
+      with:
+        python-version: ${{ matrix.python }}
+        update-environment: false
+
+    - name: Python version
+      run: ${{ steps.setup-python.outputs.python-path }} --version
+
+    - name: Run simple code
+      run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'

.github/workflows/workflow.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       matrix:
-        operating-system: [ubuntu-20.04, windows-latest]
+        operating-system: [ubuntu-latest, windows-latest]
     steps:
     - name: Checkout
       uses: actions/checkout@v2
@@ -89,3 +89,13 @@ jobs:
         python-version: 3.8.1
     - name: Verify 3.8.1
       run: python __tests__/verify-python.py 3.8.1
+
+    - name: Run with setup-python 3.10
+      id: cp310
+      uses: ./
+      with:
+        python-version: "3.10"
+    - name: Verify 3.10
+      run: python __tests__/verify-python.py 3.10
+    - name: Run python-path sample 3.10
+      run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version

.licenses/npm/@actions/cache.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/cache"
-version: 2.0.2
+version: 3.0.0
 type: npm
 summary: Actions cache lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/cache

.licenses/npm/@actions/core.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/core"
-version: 1.10.0
+version: 1.7.0
 type: npm
 summary: Actions core lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/core

.licenses/npm/@actions/http-client-2.0.1.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/http-client"
-version: 1.0.8
+version: 2.0.1
 type: npm
 summary: Actions Http Client
 homepage: https://github.com/actions/http-client#readme

.licenses/npm/@actions/http-client.dep.yml

@@ -1,9 +1,9 @@
 ---
 name: "@actions/http-client"
-version: 2.1.0
+version: 1.0.11
 type: npm
 summary: Actions Http Client
-homepage: https://github.com/actions/toolkit/tree/main/packages/http-client
+homepage: https://github.com/actions/http-client#readme
 license: mit
 licenses:
 - sources: LICENSE

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to make participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at opensource+actions/setup-python@github.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

README.md

@@ -1,4 +1,4 @@
-# setup-python V3
+# setup-python V4
 
 <p align="left">
   <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>
@@ -20,6 +20,7 @@ This action sets up a Python environment for use in actions by:
 - Support for pre-release versions of Python.
 - Support for installing any version of PyPy on-flight
 - Support for built-in caching of pip, pipenv and poetry dependencies
+- Support for `.python-version` file
 
 # Usage
 
@@ -29,13 +30,23 @@ Basic:
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- uses: actions/setup-python@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.x' # Version range or exact version of a Python version to use, using SemVer's version range syntax
     architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
 - run: python my_script.py
 ```
 
+Read Python version from file:
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version-file: '.python-version' # Read python version from a file
+- run: python my_script.py
+```
+
 Matrix Testing:
 ```yaml
 jobs:
@@ -43,12 +54,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ '2.x', '3.x', 'pypy-2.7', 'pypy-3.7', 'pypy-3.8' ]
+        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@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
           architecture: x64
@@ -63,7 +74,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['2.7', '3.7', '3.8', '3.9', '3.10', 'pypy-2.7', 'pypy-3.8']
+        python-version: ['2.7', '3.7', '3.8', '3.9', '3.10', 'pypy2.7', 'pypy3.8']
         exclude:
           - os: macos-latest
             python-version: '3.8'
@@ -72,7 +83,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Display Python version
@@ -90,7 +101,7 @@ jobs:
         python-version: ['3.7.4', '3.8', '3.9', '3.10']
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/setup-python@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - run: python my_script.py
@@ -100,7 +111,7 @@ Download and set up an accurate pre-release version of Python:
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- uses: actions/setup-python@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.11.0-alpha.1'
 - run: python my_script.py
@@ -110,12 +121,32 @@ Download and set up the latest available version of Python (includes both pre-re
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- uses: actions/setup-python@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.11.0-alpha - 3.11.0' # SemVer's version range syntax
 - run: python my_script.py
 ```
 
+Download and set up the latest patch version of Python (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
+```
+
+Download and set up 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
+```
+
 Download and set up PyPy:
 
 ```yaml
@@ -125,18 +156,34 @@ jobs:
     strategy:
       matrix:
         python-version:
-        - 'pypy-3.7' # the latest available version of PyPy that supports Python 3.7
-        - 'pypy-3.7-v7.3.3' # Python 3.7 and PyPy 7.3.3
-        - 'pypy-3.8' # the latest available version of PyPy that supports Python 3.8
+        - '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@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](#available-versions-of-pypy) section.
 
+An 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
+```
+
+>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.
+
 # Getting started with Python + Actions
 
 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).
@@ -150,10 +197,13 @@ Check out our detailed guide on using [Python with GitHub Actions](https://help.
     - 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.
+
  # Available versions of PyPy
 
  `setup-python` is able to configure PyPy from two sources:
@@ -161,7 +211,7 @@ Check out our detailed guide on using [Python with GitHub Actions](https://help.
 - 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 `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 `pypy-3.7-v7.3.3`.
+  - 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.
@@ -179,8 +229,8 @@ GitHub hosted runners have a tools cache that comes with a few versions of Pytho
 |**PyPy Tool Cache**|`RUNNER_TOOL_CACHE/PyPy/*`|
 
 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.
-- [Tools cache setup for Ubuntu](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/hosted-tool-cache.sh)
-- [Tools cache setup for Windows](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Download-ToolCache.ps1)
+- 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)
+- 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)
 
 # Specifying a Python version
 
@@ -194,19 +244,21 @@ You should specify only a major and minor version if you are okay with the most
   - 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.
 
 # Specifying a PyPy version
-The version of PyPy should be specified in the format `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 `<pypy_version>` parameter is optional and can be skipped. The latest version will be used in this case.
 
 ```
-pypy-3.7 # the latest available version of PyPy that supports Python 3.7
-pypy-3.8 # the latest available version of PyPy that supports Python 3.8
-pypy-2.7 # the latest available version of PyPy that supports Python 2.7
-pypy-3.7-v7.3.3 # Python 3.7 and PyPy 7.3.3
-pypy-3.7-v7.x # Python 3.7 and the latest available PyPy 7.x
-pypy-3.7-v7.3.3rc1 # Python 3.7 and preview version of PyPy
-pypy-3.7-nightly # Python 3.7 and nightly PyPy
+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
 ```
 
+Note: `pypy2` and `pypy3` have been removed in v3. Use the format above instead.
+
 # 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.
@@ -226,7 +278,7 @@ The requirements file format allows to specify dependency versions using logical
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- uses: actions/setup-python@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.9'
     cache: 'pip'
@@ -237,12 +289,12 @@ steps:
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- name: Install pipenv
-  run: pipx install pipenv
-- uses: actions/setup-python@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
 ```
 
@@ -252,7 +304,7 @@ steps:
 - uses: actions/checkout@v3
 - name: Install poetry
   run: pipx install poetry
-- uses: actions/setup-python@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.9'
     cache: 'poetry'
@@ -264,7 +316,7 @@ steps:
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- uses: actions/setup-python@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.9'
     cache: 'pip'
@@ -276,18 +328,53 @@ steps:
 ```yaml
 steps:
 - uses: actions/checkout@v3
-- name: Install pipenv
-  run: pipx install pipenv
-- uses: actions/setup-python@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
+
+ 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.
@@ -305,7 +392,7 @@ If you are experiencing problems while configuring Python on your self-hosted ru
 ### 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.
-- Create an environment variable called `AGENT_TOOLSDIRECTORY` and set it to `/opt/hostedtoolcache`. This controls where the runner downloads and installs tools.
+- 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`.

__tests__/cache-restore.test.ts

@@ -5,7 +5,7 @@ import {getCacheDistributor} from '../src/cache-distributions/cache-factory';
 
 describe('restore-cache', () => {
   const pipFileLockHash =
-    'd1dd6218299d8a6db5fc2001d988b34a8b31f1e9d0bb4534d377dde7c19f64b3';
+    'a3bdcc71289e4979ca9e051810d81999cc99823109faf6912e17ff14c8e621a6';
   const requirementsHash =
     'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
   const requirementsLinuxHash =

__tests__/cache-save.test.ts

@@ -212,6 +212,59 @@ describe('run', () => {
       );
       expect(setFailedSpy).not.toHaveBeenCalled();
     });
+
+    it('saves with -1 cacheId , should not fail workflow', async () => {
+      inputs['cache'] = 'poetry';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.STATE_CACHE_PRIMARY_KEY) {
+          return poetryLockHash;
+        } else if (name === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        } else {
+          return requirementsHash;
+        }
+      });
+
+      saveCacheSpy.mockImplementation(() => {
+        return -1;
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${poetryLockHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves with error from toolkit, should fail workflow', async () => {
+      inputs['cache'] = 'npm';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.STATE_CACHE_PRIMARY_KEY) {
+          return poetryLockHash;
+        } else if (name === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        } else {
+          return requirementsHash;
+        }
+      });
+
+      saveCacheSpy.mockImplementation(() => {
+        throw new cache.ValidationError('Validation failed');
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith();
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(setFailedSpy).toHaveBeenCalled();
+    });
   });
 
   afterEach(() => {

__tests__/check-python-path.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -euo pipefail
+
+PYTHON_PATH="$1"
+PATH_EXECUTABLE=$(python -c 'import sys; print(sys.executable)')
+PYTHON_PATH_EXECUTABLE=$("${PYTHON_PATH}" -c 'import sys; print(sys.executable)')
+if [ "${PATH_EXECUTABLE}" != "${PYTHON_PATH_EXECUTABLE}" ]; then
+    echo "Executable mismatch."
+    echo "python in PATH is: ${PATH_EXECUTABLE}"
+    echo "python-path (${PYTHON_PATH}) is: ${PYTHON_PATH_EXECUTABLE}"
+    exit 1
+fi
+echo "python-path: ${PYTHON_PATH}"

__tests__/data/Pipfile

@@ -4,8 +4,8 @@ verify_ssl = true
 name = "pypi"
 
 [packages]
-numpy = "1.22.3"
-pandas = "1.4.2"
+flake8 = "==4.0.1"
+numpy = "==1.23.0"
 
 [dev-packages]
 

__tests__/data/Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "33e3640eff8b2b6c7149b85568151f39a66c544033b4b3f3f2ec9ad5ce6dfe7e"
+            "sha256": "e9c37110984955621040e2dc8548c026eb8466c23db1b8e69430289b10be8938"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -16,81 +16,64 @@
         ]
     },
     "default": {
+        "flake8": {
+            "hashes": [
+                "sha256:479b1304f72536a55948cb40a32dce8bb0ffe3501e26eaf292c7e60eb5e0428d",
+                "sha256:806e034dda44114815e23c16ef92f95c91e4c71100ff52813adf7132a6ad870d"
+            ],
+            "index": "pypi",
+            "version": "==4.0.1"
+        },
+        "mccabe": {
+            "hashes": [
+                "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42",
+                "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"
+            ],
+            "version": "==0.6.1"
+        },
         "numpy": {
             "hashes": [
-                "sha256:07a8c89a04997625236c5ecb7afe35a02af3896c8aa01890a849913a2309c676",
-                "sha256:08d9b008d0156c70dc392bb3ab3abb6e7a711383c3247b410b39962263576cd4",
-                "sha256:201b4d0552831f7250a08d3b38de0d989d6f6e4658b709a02a73c524ccc6ffce",
-                "sha256:2c10a93606e0b4b95c9b04b77dc349b398fdfbda382d2a39ba5a822f669a0123",
-                "sha256:3ca688e1b9b95d80250bca34b11a05e389b1420d00e87a0d12dc45f131f704a1",
-                "sha256:48a3aecd3b997bf452a2dedb11f4e79bc5bfd21a1d4cc760e703c31d57c84b3e",
-                "sha256:568dfd16224abddafb1cbcce2ff14f522abe037268514dd7e42c6776a1c3f8e5",
-                "sha256:5bfb1bb598e8229c2d5d48db1860bcf4311337864ea3efdbe1171fb0c5da515d",
-                "sha256:639b54cdf6aa4f82fe37ebf70401bbb74b8508fddcf4797f9fe59615b8c5813a",
-                "sha256:8251ed96f38b47b4295b1ae51631de7ffa8260b5b087808ef09a39a9d66c97ab",
-                "sha256:92bfa69cfbdf7dfc3040978ad09a48091143cffb778ec3b03fa170c494118d75",
-                "sha256:97098b95aa4e418529099c26558eeb8486e66bd1e53a6b606d684d0c3616b168",
-                "sha256:a3bae1a2ed00e90b3ba5f7bd0a7c7999b55d609e0c54ceb2b076a25e345fa9f4",
-                "sha256:c34ea7e9d13a70bf2ab64a2532fe149a9aced424cd05a2c4ba662fd989e3e45f",
-                "sha256:dbc7601a3b7472d559dc7b933b18b4b66f9aa7452c120e87dfb33d02008c8a18",
-                "sha256:e7927a589df200c5e23c57970bafbd0cd322459aa7b1ff73b7c2e84d6e3eae62",
-                "sha256:f8c1f39caad2c896bc0018f699882b345b2a63708008be29b1f355ebf6f933fe",
-                "sha256:f950f8845b480cffe522913d35567e29dd381b0dc7e4ce6a4a9f9156417d2430",
-                "sha256:fade0d4f4d292b6f39951b6836d7a3c7ef5b2347f3c420cd9820a1d90d794802",
-                "sha256:fdf3c08bce27132395d3c3ba1503cac12e17282358cb4bddc25cc46b0aca07aa"
+                "sha256:092f5e6025813e64ad6d1b52b519165d08c730d099c114a9247c9bb635a2a450",
+                "sha256:196cd074c3f97c4121601790955f915187736f9cf458d3ee1f1b46aff2b1ade0",
+                "sha256:1c29b44905af288b3919803aceb6ec7fec77406d8b08aaa2e8b9e63d0fe2f160",
+                "sha256:2b2da66582f3a69c8ce25ed7921dcd8010d05e59ac8d89d126a299be60421171",
+                "sha256:5043bcd71fcc458dfb8a0fc5509bbc979da0131b9d08e3d5f50fb0bbb36f169a",
+                "sha256:58bfd40eb478f54ff7a5710dd61c8097e169bc36cc68333d00a9bcd8def53b38",
+                "sha256:79a506cacf2be3a74ead5467aee97b81fca00c9c4c8b3ba16dbab488cd99ba10",
+                "sha256:94b170b4fa0168cd6be4becf37cb5b127bd12a795123984385b8cd4aca9857e5",
+                "sha256:97a76604d9b0e79f59baeca16593c711fddb44936e40310f78bfef79ee9a835f",
+                "sha256:98e8e0d8d69ff4d3fa63e6c61e8cfe2d03c29b16b58dbef1f9baa175bbed7860",
+                "sha256:ac86f407873b952679f5f9e6c0612687e51547af0e14ddea1eedfcb22466babd",
+                "sha256:ae8adff4172692ce56233db04b7ce5792186f179c415c37d539c25de7298d25d",
+                "sha256:bd3fa4fe2e38533d5336e1272fc4e765cabbbde144309ccee8675509d5cd7b05",
+                "sha256:d0d2094e8f4d760500394d77b383a1b06d3663e8892cdf5df3c592f55f3bff66",
+                "sha256:d54b3b828d618a19779a84c3ad952e96e2c2311b16384e973e671aa5be1f6187",
+                "sha256:d6ca8dabe696c2785d0c8c9b0d8a9b6e5fdbe4f922bde70d57fa1a2848134f95",
+                "sha256:d8cc87bed09de55477dba9da370c1679bd534df9baa171dd01accbb09687dac3",
+                "sha256:f0f18804df7370571fb65db9b98bf1378172bd4e962482b857e612d1fec0f53e",
+                "sha256:f1d88ef79e0a7fa631bb2c3dda1ea46b32b1fe614e10fedd611d3d5398447f2f",
+                "sha256:f9c3fc2adf67762c9fe1849c859942d23f8d3e0bee7b5ed3d4a9c3eeb50a2f07",
+                "sha256:fc431493df245f3c627c0c05c2bd134535e7929dbe2e602b80e42bf52ff760bc",
+                "sha256:fe8b9683eb26d2c4d5db32cd29b38fdcf8381324ab48313b5b69088e0e355379"
             ],
             "index": "pypi",
-            "version": "==1.22.3"
+            "version": "==1.23.0"
         },
-        "pandas": {
+        "pycodestyle": {
             "hashes": [
-                "sha256:0010771bd9223f7afe5f051eb47c4a49534345dfa144f2f5470b27189a4dd3b5",
-                "sha256:061609334a8182ab500a90fe66d46f6f387de62d3a9cb9aa7e62e3146c712167",
-                "sha256:09d8be7dd9e1c4c98224c4dfe8abd60d145d934e9fc1f5f411266308ae683e6a",
-                "sha256:295872bf1a09758aba199992c3ecde455f01caf32266d50abc1a073e828a7b9d",
-                "sha256:3228198333dd13c90b6434ddf61aa6d57deaca98cf7b654f4ad68a2db84f8cfe",
-                "sha256:385c52e85aaa8ea6a4c600a9b2821181a51f8be0aee3af6f2dcb41dafc4fc1d0",
-                "sha256:51649ef604a945f781105a6d2ecf88db7da0f4868ac5d45c51cb66081c4d9c73",
-                "sha256:5586cc95692564b441f4747c47c8a9746792e87b40a4680a2feb7794defb1ce3",
-                "sha256:5a206afa84ed20e07603f50d22b5f0db3fb556486d8c2462d8bc364831a4b417",
-                "sha256:5b79af3a69e5175c6fa7b4e046b21a646c8b74e92c6581a9d825687d92071b51",
-                "sha256:5c54ea4ef3823108cd4ec7fb27ccba4c3a775e0f83e39c5e17f5094cb17748bc",
-                "sha256:8c5bf555b6b0075294b73965adaafb39cf71c312e38c5935c93d78f41c19828a",
-                "sha256:92bc1fc585f1463ca827b45535957815b7deb218c549b7c18402c322c7549a12",
-                "sha256:95c1e422ced0199cf4a34385ff124b69412c4bc912011ce895582bee620dfcaa",
-                "sha256:b8134651258bce418cb79c71adeff0a44090c98d955f6953168ba16cc285d9f7",
-                "sha256:be67c782c4f1b1f24c2f16a157e12c2693fd510f8df18e3287c77f33d124ed07",
-                "sha256:c072c7f06b9242c855ed8021ff970c0e8f8b10b35e2640c657d2a541c5950f59",
-                "sha256:d0d4f13e4be7ce89d7057a786023c461dd9370040bdb5efa0a7fe76b556867a0",
-                "sha256:df82739e00bb6daf4bba4479a40f38c718b598a84654cbd8bb498fd6b0aa8c16",
-                "sha256:f549097993744ff8c41b5e8f2f0d3cbfaabe89b4ae32c8c08ead6cc535b80139",
-                "sha256:ff08a14ef21d94cdf18eef7c569d66f2e24e0bc89350bcd7d243dd804e3b5eb2"
+                "sha256:720f8b39dde8b293825e7ff02c475f3077124006db4f440dcbc9a20b76548a20",
+                "sha256:eddd5847ef438ea1c7870ca7eb78a9d47ce0cdb4851a5523949f2601d0cbbe7f"
             ],
-            "index": "pypi",
-            "version": "==1.4.2"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==2.8.0"
         },
-        "python-dateutil": {
+        "pyflakes": {
             "hashes": [
-                "sha256:0123cacc1627ae19ddf3c27a5de5bd67ee4586fbdd6440d9748f8abb483d3e86",
-                "sha256:961d03dc3453ebbc59dbdea9e4e11c5651520a876d0f4db161e8674aae935da9"
+                "sha256:05a85c2872edf37a4ed30b0cce2f6093e1d0581f8c19d7393122da7e25b2b24c",
+                "sha256:3bb3a3f256f4b7968c9c788781e4ff07dce46bdf12339dcda61053375426ee2e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
-            "version": "==2.8.2"
-        },
-        "pytz": {
-            "hashes": [
-                "sha256:1e760e2fe6a8163bc0b3d9a19c4f84342afa0a2affebfaa84b01b978a02ecaa7",
-                "sha256:e68985985296d9a66a881eb3193b0906246245294a881e7c8afe623866ac6a5c"
-            ],
-            "version": "==2022.1"
-        },
-        "six": {
-            "hashes": [
-                "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
-                "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
-            ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
-            "version": "==1.16.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==2.4.0"
         }
     },
     "develop": {}

__tests__/find-pypy.test.ts

@@ -5,6 +5,7 @@ import {HttpClient} from '@actions/http-client';
 import * as ifm from '@actions/http-client/interfaces';
 import * as tc from '@actions/tool-cache';
 import * as exec from '@actions/exec';
+import * as core from '@actions/core';
 
 import * as path from 'path';
 import * as semver from 'semver';
@@ -37,16 +38,34 @@ describe('parsePyPyVersion', () => {
     ['pypy-3.6-v7.x', {pythonVersion: '3.6', pypyVersion: 'v7.x'}],
     ['pypy-3.6', {pythonVersion: '3.6', pypyVersion: 'x'}],
     ['pypy-3.6-nightly', {pythonVersion: '3.6', pypyVersion: 'nightly'}],
-    ['pypy-3.6-v7.3.3rc1', {pythonVersion: '3.6', pypyVersion: 'v7.3.3-rc.1'}]
+    ['pypy-3.6-v7.3.3rc1', {pythonVersion: '3.6', pypyVersion: 'v7.3.3-rc.1'}],
+    ['pypy3.8-v7.3.7', {pythonVersion: '3.8', pypyVersion: 'v7.3.7'}],
+    ['pypy3.8-v7.3.x', {pythonVersion: '3.8', pypyVersion: 'v7.3.x'}],
+    ['pypy3.8-v7.x', {pythonVersion: '3.8', pypyVersion: 'v7.x'}],
+    ['pypy3.8', {pythonVersion: '3.8', pypyVersion: 'x'}],
+    ['pypy3.9-nightly', {pythonVersion: '3.9', pypyVersion: 'nightly'}],
+    ['pypy3.9-v7.3.8rc1', {pythonVersion: '3.9', pypyVersion: 'v7.3.8-rc.1'}]
   ])('%s -> %s', (input, expected) => {
     expect(finder.parsePyPyVersion(input)).toEqual(expected);
   });
 
-  it('throw on invalid input', () => {
-    expect(() => finder.parsePyPyVersion('pypy-')).toThrowError(
-      "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy-<python-version>'. See README for examples and documentation."
+  it.each(['', 'pypy-', 'pypy', 'p', 'notpypy-'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parsePyPyVersion(input)).toThrowError(
+        "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy<python-version>' or 'pypy-<python-version>'. See README for examples and documentation."
+      );
+    }
+  );
+
+  it.each(['pypy-2', 'pypy-3', 'pypy2', 'pypy3', 'pypy3.x', 'pypy3.8.10'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parsePyPyVersion(input)).toThrowError(
+        "Invalid format of Python version for PyPy. Python version should be specified in format 'x.y'. See README for examples and documentation."
+      );
+    }
   );
-  });
 });
 
 describe('getPyPyVersionFromPath', () => {
@@ -130,8 +149,13 @@ describe('findPyPyVersion', () => {
   let spyWriteExactPyPyVersionFile: jest.SpyInstance;
   let spyCacheDir: jest.SpyInstance;
   let spyChmodSync: jest.SpyInstance;
+  let spyCoreAddPath: jest.SpyInstance;
+  let spyCoreExportVariable: jest.SpyInstance;
+  const env = process.env;
 
   beforeEach(() => {
+    jest.resetModules();
+    process.env = {...env};
     tcFind = jest.spyOn(tc, 'find');
     tcFind.mockImplementation((tool: string, version: string) => {
       const semverRange = new semver.Range(version);
@@ -183,32 +207,46 @@ describe('findPyPyVersion', () => {
 
     spyExistsSync = jest.spyOn(fs, 'existsSync');
     spyExistsSync.mockReturnValue(true);
+
+    spyCoreAddPath = jest.spyOn(core, 'addPath');
+
+    spyCoreExportVariable = jest.spyOn(core, 'exportVariable');
   });
 
   afterEach(() => {
     jest.resetAllMocks();
     jest.clearAllMocks();
     jest.restoreAllMocks();
+    process.env = env;
   });
 
   it('found PyPy in toolcache', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.6-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy-3.6-v7.3.x', architecture, true)
     ).resolves.toEqual({
       resolvedPythonVersion: '3.6.12',
       resolvedPyPyVersion: '7.3.3'
     });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('throw on invalid input format', async () => {
     await expect(
-      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true)
     ).rejects.toThrow();
   });
 
   it('throw on invalid input format pypy3.7-7.3.x', async () => {
     await expect(
-      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true)
     ).rejects.toThrow();
   });
 
@@ -220,16 +258,42 @@ describe('findPyPyVersion', () => {
     spyChmodSync = jest.spyOn(fs, 'chmodSync');
     spyChmodSync.mockImplementation(() => undefined);
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, true)
     ).resolves.toEqual({
       resolvedPythonVersion: '3.7.9',
       resolvedPyPyVersion: '7.3.3'
     });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('found and install successfully without environment update', async () => {
+    spyCacheDir = jest.spyOn(tc, 'cacheDir');
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.7.7', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, false)
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.7.9',
+      resolvedPyPyVersion: '7.3.3'
+    });
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 
   it('throw if release is not found', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.5.x', architecture)
+      finder.findPyPyVersion('pypy-3.7-v7.5.x', architecture, true)
     ).rejects.toThrowError(
       `PyPy version 3.7 (v7.5.x) with arch ${architecture} not found`
     );

__tests__/finder.test.ts

@@ -19,15 +19,29 @@ process.env['RUNNER_TOOL_CACHE'] = toolDir;
 process.env['RUNNER_TEMP'] = tempDir;
 
 import * as tc from '@actions/tool-cache';
+import * as core from '@actions/core';
 import * as finder from '../src/find-python';
 import * as installer from '../src/install-python';
 
 const manifestData = require('./data/versions-manifest.json');
 
 describe('Finder tests', () => {
+  let spyCoreAddPath: jest.SpyInstance;
+  let spyCoreExportVariable: jest.SpyInstance;
+  const env = process.env;
+
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {...env};
+    spyCoreAddPath = jest.spyOn(core, 'addPath');
+    spyCoreExportVariable = jest.spyOn(core, 'exportVariable');
+  });
+
   afterEach(() => {
     jest.resetAllMocks();
     jest.clearAllMocks();
+    jest.restoreAllMocks();
+    process.env = env;
   });
 
   it('Finds Python if it is installed', async () => {
@@ -35,7 +49,26 @@ describe('Finder tests', () => {
     await io.mkdirP(pythonDir);
     fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
-    await finder.useCpythonVersion('3.x', 'x64');
+    await finder.useCpythonVersion('3.x', 'x64', true);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('Finds Python if it is installed without environment update', async () => {
+    const pythonDir: string = path.join(toolDir, 'Python', '3.0.0', 'x64');
+    await io.mkdirP(pythonDir);
+    fs.writeFileSync(`${pythonDir}.complete`, 'hello');
+    // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
+    await finder.useCpythonVersion('3.x', 'x64', false);
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 
   it('Finds stable Python version if it is not installed, but exists in the manifest', async () => {
@@ -52,7 +85,16 @@ describe('Finder tests', () => {
       fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     });
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
-    await finder.useCpythonVersion('1.2.3', 'x64');
+    await finder.useCpythonVersion('1.2.3', 'x64', true);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('Finds pre-release Python version in the manifest', async () => {
@@ -74,17 +116,28 @@ describe('Finder tests', () => {
       fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     });
     // This will throw if it doesn't find it in the manifest (because no such version exists)
-    await finder.useCpythonVersion('1.2.3-beta.2', 'x64');
+    await finder.useCpythonVersion('1.2.3-beta.2', 'x64', true);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('Errors if Python is not installed', async () => {
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
     let thrown = false;
     try {
-      await finder.useCpythonVersion('3.300000', 'x64');
+      await finder.useCpythonVersion('3.300000', 'x64', true);
     } catch {
       thrown = true;
     }
     expect(thrown).toBeTruthy();
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 });

action.yml

@@ -4,8 +4,9 @@ description: 'Set up a specific version of Python and add the command-line tools
 author: 'GitHub'
 inputs:
   python-version:
-    description: "Version range or exact version of a Python version to use, using SemVer's version range syntax."
-    default: '3.x'
+    description: "Version range or exact version of Python to use, using SemVer's version range syntax. Reads from .python-version if unset."
+  python-version-file:
+    description: "File containing the Python version to use. Example: .python-version"
   cache:
     description: 'Used to specify a package manager for caching in the default directory. Supported values: pip, pipenv, poetry.'
     required: false
@@ -16,11 +17,16 @@ inputs:
     default: ${{ github.token }}
   cache-dependency-path:
     description: 'Used to specify the path to dependency files. Supports wildcards or a list of file names for caching multiple dependencies.'
+  update-environment:
+    description: 'Set this option if you want the action to update environment variables.'
+    default: true
 outputs:
   python-version:
     description: "The installed python version. Useful when given a version range as input."
   cache-hit:
     description: 'A boolean value to indicate a cache entry was found'
+  python-path:
+    description: "The absolute path to the Python executable."
 runs:
   using: 'node16'
   main: 'dist/setup/index.js'

docs/adrs/0000-caching-dependencies.md

@@ -45,8 +45,8 @@ We won't pursue the goal to provide wide customization of caching in the scope o
 
 ```
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: 3.9
     cache: pip
@@ -56,8 +56,8 @@ steps:
 
 ```
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: 3.9
     cache: pipenv
@@ -66,8 +66,8 @@ steps:
 
 ```
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: 3.9
     cache: pip
@@ -80,8 +80,8 @@ steps:
 
 ```
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: 3.9
     cache: pip

package.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-python",
-  "version": "3.1.1",
+  "version": "4.0.0",
   "private": true,
   "description": "Setup python action",
   "main": "dist/index.js",
@@ -9,7 +9,7 @@
     "format": "prettier --write \"{,!(node_modules)/**/}*.ts\"",
     "format-check": "prettier --check \"{,!(node_modules)/**/}*.ts\"",
     "release": "ncc build -o dist/setup src/setup-python.ts && ncc build -o dist/cache-save src/cache-save.ts && git add -f dist/",
-    "test": "jest"
+    "test": "jest --coverage"
   },
   "repository": {
     "type": "git",
@@ -23,8 +23,8 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^2.0.2",
-    "@actions/core": "^1.2.3",
+    "@actions/cache": "^3.0.0",
+    "@actions/core": "^1.7.0",
     "@actions/exec": "^1.1.0",
     "@actions/glob": "^0.2.0",
     "@actions/io": "^1.0.2",
@@ -35,7 +35,7 @@
     "@types/jest": "^27.0.2",
     "@types/node": "^16.11.25",
     "@types/semver": "^7.1.0",
-    "@zeit/ncc": "^0.22.0",
+    "@vercel/ncc": "^0.33.4",
     "husky": "^7.0.2",
     "jest": "^27.2.5",
     "jest-circus": "^27.2.5",

src/cache-distributions/poetry-cache.ts

@@ -58,7 +58,7 @@ class PoetryCache extends CacheDistributor {
     const config: any = {};
 
     for (let line of lines) {
-      line = line.replace(/#.*$/, '');
+      line = line.replace(/#.*$/gm, '');
 
       const [key, value] = line.split('=').map(part => part.trim());
 

src/cache-save.ts

@@ -43,17 +43,11 @@ async function saveCache(packageManager: string) {
     return;
   }
 
-  try {
-    await cache.saveCache(cachePaths, primaryKey);
+  const cacheId = await cache.saveCache(cachePaths, primaryKey);
+  if (cacheId == -1) {
+    return;
+  }
   core.info(`Cache saved with the key: ${primaryKey}`);
-  } catch (error) {
-    const err = error as Error;
-    if (err.name === cache.ReserveCacheError.name) {
-      core.info(err.message);
-    } else {
-      throw error;
-    }
-  }
 }
 
 function isCacheDirectoryExists(cacheDirectory: string[]) {

src/find-pypy.ts

@@ -20,7 +20,8 @@ interface IPyPyVersionSpec {
 
 export async function findPyPyVersion(
   versionSpec: string,
-  architecture: string
+  architecture: string,
+  updateEnvironment: boolean
 ): Promise<{resolvedPyPyVersion: string; resolvedPythonVersion: string}> {
   let resolvedPyPyVersion = '';
   let resolvedPythonVersion = '';
@@ -48,11 +49,26 @@ export async function findPyPyVersion(
 
   const pipDir = IS_WINDOWS ? 'Scripts' : 'bin';
   const _binDir = path.join(installDir, pipDir);
+  const binaryExtension = IS_WINDOWS ? '.exe' : '';
+  const pythonPath = path.join(
+    IS_WINDOWS ? installDir : _binDir,
+    `python${binaryExtension}`
+  );
   const pythonLocation = pypyInstall.getPyPyBinaryPath(installDir);
-  core.exportVariable('pythonLocation', pythonLocation);
+  if (updateEnvironment) {
+    core.exportVariable('pythonLocation', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython
+    core.exportVariable('Python_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2
+    core.exportVariable('Python2_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython3.html#module:FindPython3
+    core.exportVariable('Python3_ROOT_DIR', installDir);
+    core.exportVariable('PKG_CONFIG_PATH', pythonLocation + '/lib/pkgconfig');
     core.addPath(pythonLocation);
     core.addPath(_binDir);
+  }
   core.setOutput('python-version', 'pypy' + resolvedPyPyVersion.trim());
+  core.setOutput('python-path', pythonPath);
 
   return {resolvedPyPyVersion, resolvedPythonVersion};
 }
@@ -97,9 +113,14 @@ export function findPyPyToolCache(
 export function parsePyPyVersion(versionSpec: string): IPyPyVersionSpec {
   const versions = versionSpec.split('-').filter(item => !!item);
 
+  if (/^(pypy)(.+)/.test(versions[0])) {
+    let pythonVersion = versions[0].replace('pypy', '');
+    versions.splice(0, 1, 'pypy', pythonVersion);
+  }
+
   if (versions.length < 2 || versions[0] != 'pypy') {
     throw new Error(
-      "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy-<python-version>'. See README for examples and documentation."
+      "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy<python-version>' or 'pypy-<python-version>'. See README for examples and documentation."
     );
   }
 

src/find-python.ts

@@ -32,7 +32,8 @@ function binDir(installDir: string): string {
 
 export async function useCpythonVersion(
   version: string,
-  architecture: string
+  architecture: string,
+  updateEnvironment: boolean
 ): Promise<InstalledVersion> {
   const desugaredVersionSpec = desugarDevVersion(version);
   const semanticVersionSpec = pythonVersionToSemantic(desugaredVersionSpec);
@@ -69,7 +70,23 @@ export async function useCpythonVersion(
     );
   }
 
+  const _binDir = binDir(installDir);
+  const binaryExtension = IS_WINDOWS ? '.exe' : '';
+  const pythonPath = path.join(
+    IS_WINDOWS ? installDir : _binDir,
+    `python${binaryExtension}`
+  );
+  if (updateEnvironment) {
     core.exportVariable('pythonLocation', installDir);
+    core.exportVariable('PKG_CONFIG_PATH', installDir + '/lib/pkgconfig');
+    core.exportVariable('pythonLocation', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython
+    core.exportVariable('Python_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2
+    core.exportVariable('Python2_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython3.html#module:FindPython3
+    core.exportVariable('Python3_ROOT_DIR', installDir);
+    core.exportVariable('PKG_CONFIG_PATH', installDir + '/lib/pkgconfig');
 
     if (IS_LINUX) {
       const libPath = process.env.LD_LIBRARY_PATH
@@ -81,9 +98,8 @@ export async function useCpythonVersion(
         core.exportVariable('LD_LIBRARY_PATH', pyLibPath + libPath);
       }
     }
-
     core.addPath(installDir);
-  core.addPath(binDir(installDir));
+    core.addPath(_binDir);
 
     if (IS_WINDOWS) {
       // Add --user directory
@@ -102,21 +118,19 @@ export async function useCpythonVersion(
       core.addPath(userScriptsDir);
     }
     // On Linux and macOS, pip will create the --user directory and add it to PATH as needed.
+  }
 
   const installed = versionFromPath(installDir);
   core.setOutput('python-version', installed);
+  core.setOutput('python-path', pythonPath);
 
   return {impl: 'CPython', version: installed};
 }
 
-/** Convert versions like `3.8-dev` to a version like `>= 3.8.0-a0`. */
+/** Convert versions like `3.8-dev` to a version like `~3.8.0-0`. */
 function desugarDevVersion(versionSpec: string) {
-  if (versionSpec.endsWith('-dev')) {
-    const versionRoot = versionSpec.slice(0, -'-dev'.length);
-    return `>= ${versionRoot}.0-a0`;
-  } else {
-    return versionSpec;
-  }
+  const devVersion = /^(\d+)\.(\d+)-dev$/;
+  return versionSpec.replace(devVersion, '~$1.$2.0-0');
 }
 
 /** Extracts python version from install path from hosted tool cache as described in README.md */

src/install-pypy.ts

@@ -98,7 +98,9 @@ async function createPyPySymlink(
 ) {
   const version = semver.coerce(pythonVersion)!;
   const pythonBinaryPostfix = semver.major(version);
+  const pythonMinor = semver.minor(version);
   const pypyBinaryPostfix = pythonBinaryPostfix === 2 ? '' : '3';
+  const pypyMajorMinorBinaryPostfix = `${pythonBinaryPostfix}.${pythonMinor}`;
   let binaryExtension = IS_WINDOWS ? '.exe' : '';
 
   core.info('Creating symlinks...');
@@ -115,6 +117,13 @@ async function createPyPySymlink(
     `python${binaryExtension}`,
     true
   );
+
+  createSymlinkInFolder(
+    pypyBinaryPath,
+    `pypy${pypyBinaryPostfix}${binaryExtension}`,
+    `pypy${pypyMajorMinorBinaryPostfix}${binaryExtension}`,
+    true
+  );
 }
 
 async function installPip(pythonLocation: string) {

src/setup-python.ts

@@ -3,11 +3,12 @@ import * as finder from './find-python';
 import * as finderPyPy from './find-pypy';
 import * as path from 'path';
 import * as os from 'os';
+import fs from 'fs';
 import {getCacheDistributor} from './cache-distributions/cache-factory';
-import {isCacheFeatureAvailable} from './utils';
+import {isCacheFeatureAvailable, IS_LINUX, IS_WINDOWS} from './utils';
 
 function isPyPyVersion(versionSpec: string) {
-  return versionSpec.startsWith('pypy-');
+  return versionSpec.startsWith('pypy');
 }
 
 async function cacheDependencies(cache: string, pythonVersion: string) {
@@ -21,25 +22,77 @@ async function cacheDependencies(cache: string, pythonVersion: string) {
   await cacheDistributor.restoreCache();
 }
 
+function resolveVersionInput(): string {
+  let version = core.getInput('python-version');
+  let versionFile = core.getInput('python-version-file');
+
+  if (version && versionFile) {
+    core.warning(
+      'Both python-version and python-version-file inputs are specified, only python-version will be used.'
+    );
+  }
+
+  if (version) {
+    return version;
+  }
+
+  if (versionFile) {
+    if (!fs.existsSync(versionFile)) {
+      logWarning(
+        `The specified python version file at: ${versionFile} doesn't exist. Attempting to find .python-version file.`
+      );
+      versionFile = '.python-version';
+      if (!fs.existsSync(versionFile)) {
+        throw new Error(`The ${versionFile} doesn't exist.`);
+      }
+    }
+
+    version = fs.readFileSync(versionFile, 'utf8');
+    core.info(`Resolved ${versionFile} as ${version}`);
+
+    return version;
+  }
+
+  core.warning(
+    "Neither 'python-version' nor 'python-version-file' inputs were supplied."
+  );
+
+  return version;
+}
+
 async function run() {
+  // According to the README windows binaries do not require to be installed
+  // in the specific location, but Mac and Linux do
+  if (!IS_WINDOWS && !process.env.AGENT_TOOLSDIRECTORY?.trim()) {
+    if (IS_LINUX) process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
+    else process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
+    process.env['RUNNER_TOOL_CACHE'] = process.env['AGENT_TOOLSDIRECTORY'];
+  }
+  core.debug(
+    `Python is expected to be installed into RUNNER_TOOL_CACHE=${process.env['RUNNER_TOOL_CACHE']}`
+  );
   try {
-    const version = core.getInput('python-version');
+    const version = resolveVersionInput();
     if (version) {
       let pythonVersion: string;
       const arch: string = core.getInput('architecture') || os.arch();
+      const updateEnvironment = core.getBooleanInput('update-environment');
       if (isPyPyVersion(version)) {
-        const installed = await finderPyPy.findPyPyVersion(version, arch);
+        const installed = await finderPyPy.findPyPyVersion(
+          version,
+          arch,
+          updateEnvironment
+        );
         pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
         core.info(
           `Successfully set up PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
         );
       } else {
-        if (version.trim().startsWith('2')) {
-          core.warning(
-            'The support for python 2.7 will be removed on June 19. Related issue: https://github.com/actions/setup-python/issues/672'
+        const installed = await finder.useCpythonVersion(
+          version,
+          arch,
+          updateEnvironment
         );
-        }
-        const installed = await finder.useCpythonVersion(version, arch);
         pythonVersion = installed.version;
         core.info(`Successfully set up ${installed.impl} (${pythonVersion})`);
       }
@@ -48,6 +101,10 @@ async function run() {
       if (cache && isCacheFeatureAvailable()) {
         await cacheDependencies(cache, pythonVersion);
       }
+    } else {
+      core.warning(
+        'The `python-version` input is not set.  The version of Python currently in `PATH` will be used.'
+      );
     }
     const matchersPath = path.join(__dirname, '../..', '.github');
     core.info(`##[add-matcher]${path.join(matchersPath, 'python.json')}`);
@@ -56,4 +113,9 @@ async function run() {
   }
 }
 
+export function logWarning(message: string): void {
+  const warningPrefix = '[warning]';
+  core.info(`${warningPrefix}${message}`);
+}
+
 run();