python: make PET default locator

extensions/positron-python/package.json

@@ -805,7 +805,7 @@
                     "type": "string"
                 },
                 "python.locator": {
-                    "default": "js",
+                    "default": "native",
                     "description": "%python.locator.description%",
                     "enum": [
                         "js",

extensions/positron-python/package.nls.json

@@ -86,7 +86,7 @@
     "python.logging.level.description": "The logging level the extension logs at, defaults to 'error'",
     "python.logging.level.deprecation": "This setting is deprecated. Please use command `Developer: Set Log Level...` to set logging level.",
     "python.missingPackage.severity.description": "Set severity of missing packages in requirements.txt or pyproject.toml",
-    "python.locator.description": "[Experimental] Select implementation of environment locators. This is an experimental setting while we test native environment location.",
+    "python.locator.description": "Choose how to discover Python interpreters. Native uses [Python Environment Tools](https://github.com/microsoft/python-environment-tools) a faster, Rust-based locator, while JS uses a JavaScript implementation.",
     "python.pipenvPath.description": "Path to the pipenv executable to use for activation.",
     "python.poetryPath.description": "Path to the poetry executable.",
     "python.quietMode.description": "Start Positron's IPython shell in quiet mode, to suppress initial version and help messages (restart Positron to apply).",
@@ -129,7 +129,7 @@
     "walkthrough.positron.step.migrateFromVSCode.panes.description": "Find your way around the panes and layout of Positron\n[Customize your layout](command:workbench.action.customizeLayout)",
     "walkthrough.pythonWelcome.title": "Get Started with Python Development",
     "walkthrough.pythonWelcome.description": "Your first steps to set up a Python project with all the powerful tools and features that the Python extension has to offer!",
-     "walkthrough.step.python.createPythonFile.title": "Create a Python file",
+    "walkthrough.step.python.createPythonFile.title": "Create a Python file",
     "walkthrough.step.python.createPythonFolder.title": "Open a Python project folder",
     "walkthrough.step.python.createPythonFile.description": {
         "message": "[Open](command:toSide:workbench.action.files.openFile) or [create](command:toSide:workbench.action.files.newUntitledFile?%7B%22languageId%22%3A%22python%22%7D) a Python file - make sure to save it as \".py\".\n[Create Python File](command:toSide:workbench.action.files.newUntitledFile?%7B%22languageId%22%3A%22python%22%7D)",
@@ -141,7 +141,7 @@
     },
     "walkthrough.step.python.createPythonFolder.description": {
         "message": "[Open](command:workbench.action.files.openFolder) or create a project folder.\n[Open Project Folder](command:workbench.action.files.openFolder)",
-        "comment":  [
+        "comment": [
             "{Locked='](command:workbench.action.files.openFolder'}",
             "Do not translate the 'command:*' part inside of the '(..)'. It is an internal command syntax for VS Code",
             "Please make sure there is no space between the right bracket and left parenthesis:  ]( this is an internal syntax for links"
@@ -171,7 +171,7 @@
     "walkthrough.step.python.createEnvironment.title": "Select or create a Python environment",
     "walkthrough.step.python.createEnvironment.description": {
         "message": "Create an environment for your Python project or use [Select Python Interpreter](command:python.setInterpreter) to select an existing one.\n[Create Environment](command:python.createEnvironment)\n**Tip**: Run the ``Python: Create Environment`` command in the [Command Palette](command:workbench.action.showCommands).",
-        "comment":  [
+        "comment": [
             "{Locked='](command:python.createEnvironment'}",
             "{Locked='](command:workbench.action.showCommands'}",
             "{Locked='](command:python.setInterpreter'}",
@@ -183,8 +183,8 @@
     "walkthrough.step.python.runAndDebug.description": "Open your Python file  and click on the play button on the top right of the editor, or press F5 when on the file and select \"Python File\" to run with the debugger. \n  \n[Learn more](https://code.visualstudio.com/docs/python/python-tutorial#_run-hello-world)",
     "walkthrough.step.python.learnMoreWithDS.title": "Keep exploring!",
     "walkthrough.step.python.learnMoreWithDS.description": {
-        "message":"🎨 Explore all the features the Python extension has to offer by looking for \"Python\" in the [Command Palette](command:workbench.action.showCommands). \n 📈 Learn more about getting started with [data science](command:workbench.action.openWalkthrough?%7B%22category%22%3A%22ms-python.python%23pythonDataScienceWelcome%22%2C%22step%22%3A%22ms-python.python%23python.createNewNotebook%22%7D) in Python. \n ✨ Take a look at our [Release Notes](https://aka.ms/AA8dxtb) to learn more about the latest features. \n \n[Follow along with the Python Tutorial](https://aka.ms/AA8dqti)",
-        "comment":[
+        "message": "🎨 Explore all the features the Python extension has to offer by looking for \"Python\" in the [Command Palette](command:workbench.action.showCommands). \n 📈 Learn more about getting started with [data science](command:workbench.action.openWalkthrough?%7B%22category%22%3A%22ms-python.python%23pythonDataScienceWelcome%22%2C%22step%22%3A%22ms-python.python%23python.createNewNotebook%22%7D) in Python. \n ✨ Take a look at our [Release Notes](https://aka.ms/AA8dxtb) to learn more about the latest features. \n \n[Follow along with the Python Tutorial](https://aka.ms/AA8dqti)",
+        "comment": [
             "{Locked='](command:workbench.action.showCommands'}",
             "{Locked='](command:workbench.action.openWalkthrough?%7B%22category%22%3A%22ms-python.python%23pythonDataScienceWelcome%22%2C%22step%22%3A%22ms-python.python%23python.createNewNotebook%22%7D'}",
             "Do not translate the 'command:*' part inside of the '(..)'. It is an internal command syntax for VS Code",

test/e2e/fixtures/settings.json

@@ -1,5 +1,4 @@
 {
-    "python.locator": "native",
     "interpreters.startupBehavior": "manual",
     "positron.r.kernel.logLevel": "trace",
     "python.languageServerLogLevel": "debug",