feature: add a python-path output

Expose a `python-path` output containing the chosen Python executable path.

.github/workflows/test-pypy.yml

@@ -37,10 +37,15 @@ jobs:
         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
   

.github/workflows/test-python.yml

@@ -23,9 +23,14 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2
 
-    - name: setup default python 
+    - name: setup default python
+      id: setup-python
       uses: ./
 
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
     - name: Validate version
       run: python --version
 
@@ -45,10 +50,15 @@ jobs:
       uses: actions/checkout@v2
 
     - 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)
@@ -74,10 +84,15 @@ jobs:
       uses: actions/checkout@v2
 
     - 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)

.github/workflows/workflow.yml

@@ -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