pass the python path into the panel client

Author: Mike Prosser

protos/ni/pythonpanel/v1/python_panel_service.proto

@@ -49,6 +49,9 @@ message StartPanelRequest {
 
   // Absolute path of the panel script's file on disk, or network path to the file
   string panel_script_path = 2;
+
+  // Path to the python interpreter to use for the panel script.
+  string python_path = 3;
 }
 
 message StartPanelResponse {

src/ni/pythonpanel/v1/python_panel_service_pb2.py

@@ -19,17 +19,21 @@ class StartPanelRequest(google.protobuf.message.Message):
 
     PANEL_ID_FIELD_NUMBER: builtins.int
     PANEL_SCRIPT_PATH_FIELD_NUMBER: builtins.int
+    PYTHON_PATH_FIELD_NUMBER: builtins.int
     panel_id: builtins.str
     """Unique ID of the panel"""
     panel_script_path: builtins.str
     """Absolute path of the panel script's file on disk, or network path to the file"""
+    python_path: builtins.str
+    """Path to the python interpreter to use for the panel script."""
     def __init__(
         self,
         *,
         panel_id: builtins.str = ...,
         panel_script_path: builtins.str = ...,
+        python_path: builtins.str = ...,
     ) -> None: ...
-    def ClearField(self, field_name: typing.Literal["panel_id", b"panel_id", "panel_script_path", b"panel_script_path"]) -> None: ...
+    def ClearField(self, field_name: typing.Literal["panel_id", b"panel_id", "panel_script_path", b"panel_script_path", "python_path", b"python_path"]) -> None: ...
 
 global___StartPanelRequest = StartPanelRequest
 

src/ni/pythonpanel/v1/python_panel_service_pb2.pyi

@@ -1,6 +1,8 @@
 from __future__ import annotations
 
+import sys
 from abc import ABC
+from pathlib import Path
 
 import grpc
 from ni_measurement_plugin_sdk_service.discovery import DiscoveryClient
@@ -35,7 +37,8 @@ def __init__(
             grpc_channel=grpc_channel,
         )
         self._panel_script_path = panel_script_path
-        self._panel_url = self._panel_client.start_panel(panel_id, panel_script_path)
+        python_path = str(Path(sys.executable).resolve())
+        self._panel_url = self._panel_client.start_panel(panel_id, panel_script_path, python_path)
 
     @property
     def panel_script_path(self) -> str:

src/nipanel/_panel.py

@@ -59,18 +59,19 @@ def __init__(
         self._grpc_channel = grpc_channel
         self._stub: PythonPanelServiceStub | None = None
 
-    def start_panel(self, panel_id: str, panel_script_path: str) -> str:
+    def start_panel(self, panel_id: str, panel_script_path: str, python_path: str) -> str:
         """Start the panel.
 
         Args:
             panel_id: The ID of the panel to start.
             panel_script_path: The path of the panel script file.
+            python_path: The path to the Python executable.
 
         Returns:
             The URL of the panel.
         """
         start_panel_request = StartPanelRequest(
-            panel_id=panel_id, panel_script_path=panel_script_path
+            panel_id=panel_id, panel_script_path=panel_script_path, python_path=python_path
         )
         response = self._invoke_with_retry(self._get_stub().StartPanel, start_panel_request)
         return response.panel_url