python: use Python Environment Tools for interpreter discovery

.github/actions/install-pet/action.yml

@@ -0,0 +1,27 @@
+name: "Setup Python Environment Tools"
+description: "Install and build microsoft/python-environment-tools"
+
+defaults:
+ run:
+  working-directory: 'extensions/positron-python'
+
+runs:
+  using: "composite"
+  steps:
+      - name: Checkout Python Environment Tools
+        uses: actions/checkout@v4
+        with:
+          repository: 'microsoft/python-environment-tools'
+          path: 'python-env-tools'
+          sparse-checkout: |
+            crates
+            Cargo.toml
+            Cargo.lock
+          sparse-checkout-cone-mode: false
+
+      - name: Rust Tool Chain setup
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Build Native Binaries
+        run: nox --session native_build
+        shell: bash

.github/actions/install-python/action.yml

@@ -34,6 +34,7 @@ runs:
         python -m pip install --upgrade pip
         python -m pip install -r requirements.txt
         python -m pip install ipykernel trcli
+        python -m pip install nox
 
     - name: Verify Python Version
       shell: bash

.github/actions/setup-test-env/action.yml

@@ -47,6 +47,9 @@ runs:
       with:
         version: "3.10"
 
+    - name: Setup Python Environment Tools
+      uses: ./.github/actions/install-pet
+
     - name: Setup R
       uses: ./.github/actions/install-r
       with:

.github/workflows/positron-python-ci.yml

@@ -244,6 +244,17 @@ jobs:
         with:
           path: ${{ env.special-working-directory-relative }}
 
+      - name: Checkout Python Environment Tools
+        uses: actions/checkout@v4
+        with:
+          repository: 'microsoft/python-environment-tools'
+          path: ${{ env.special-working-directory-relative }}/python-env-tools
+          sparse-checkout: |
+            crates
+            Cargo.toml
+            Cargo.lock
+          sparse-checkout-cone-mode: false
+
       - name: Install Node ${{ env.NODE_VERSION }}
         uses: actions/setup-node@v3
         with:
@@ -267,7 +278,16 @@ jobs:
         run: npx @vscode/l10n-dev@latest export ./src
 
       - name: Install test requirements
-        run: python -m pip install --upgrade -r ./build/test-requirements.txt
+        run: |
+          python -m pip install --upgrade -r ./build/test-requirements.txt
+          python -m pip install nox
+
+      - name: Rust Tool Chain setup
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Build Native Binaries
+        run: nox --session native_build
+        shell: bash
 
       - name: Install functional test requirements
         run: python -m pip install --upgrade -r ./build/functional-test-requirements.txt

extensions/positron-python/package.json

@@ -689,7 +689,7 @@
                     "type": "string"
                 },
                 "python.locator": {
-                    "default": "js",
+                    "default": "native",
                     "description": "%python.locator.description%",
                     "enum": [
                         "js",