renderer can be None, sometimes we don't want to init - e.g. CI

system/ui/lib/wrapper.py

@@ -4,7 +4,7 @@ from typing import Any
 from openpilot.system.ui.lib.application import gui_app
 
 class Wrapper:
-  _renderer: Any = None
+  _renderer: Any | None = None
 
   def __init__(self, title: str, renderer_cls, *renderer_args):
     self._title = title
@@ -20,12 +20,12 @@ class Wrapper:
 
   def _run(self):
     gui_app.init_window(self._title)
-    self._renderer = self._renderer_cls(*self._renderer_args)
+    self._renderer = renderer = self._renderer_cls(*self._renderer_args)
     try:
       for _ in gui_app.render():
         if self._stop_event.is_set():
           break
-        self._renderer.render()
+        renderer.render()
     finally:
       gui_app.close()
 

system/ui/spinner.py

@@ -73,6 +73,7 @@ class Spinner(Wrapper):
     super().__init__("Spinner", Renderer)
 
   def update(self, spinner_text: str):
+    if self._renderer is not None:
       self._renderer.set_text(spinner_text)
 
   def update_progress(self, cur: float, total: float):