Get rid of explicit SPICE unloading

src/bsk_rl/sim/world.py

@@ -203,14 +203,6 @@ def setup_ephem_object(self, priority: int = 988, **kwargs) -> None:
             self.world_task_name, self.ephemConverter, ModelPriority=priority
         )
 
-    def __del__(self) -> None:
-        """Log when world is deleted and unload SPICE."""
-        super().__del__()
-        try:
-            self.gravFactory.unloadSpiceKernels()
-        except AttributeError:
-            pass
-
 
 class EclipseWorldModel(WorldModel):
     def __init__(self, *args, **kwargs) -> None:

src/bsk_rl/utils/orbital.py

@@ -551,13 +551,6 @@ def r_BP_P(self) -> interp1d:
             fill_value="extrapolate",
         )
 
-    def __del__(self) -> None:
-        """Unload spice kernels when object is deleted."""
-        try:
-            self.gravFactory.unloadSpiceKernels()
-        except AttributeError:
-            pass
-
 
 def lla2ecef(lat: float, long: float, radius: float):
     """Project LLA to Earth Centered, Earth Fixed location.

tests/unittest/sim/test_world.py

@@ -74,17 +74,13 @@ def test_omega_PN_N(self):
     @patch(baseworld + "setup_gravity_bodies")
     @patch(baseworld + "setup_ephem_object")
     def test_setup_and_delete(self, grav_set, epoch_set):
-        world = WorldModel(MagicMock(), 1.0)
+        world = WorldModel(MagicMock(), 1.0)  # noqa: F841
         for setter in (grav_set, epoch_set):
             setter.assert_called_once()
-        unload_function = MagicMock()
-        world.gravFactory = MagicMock(unloadSpiceKernels=unload_function)
-        del world
-        unload_function.assert_called_once()
 
     @patch(baseworld + "_setup_world_objects", MagicMock())
     @patch(module + "simIncludeGravBody", MagicMock())
-    def testsetup_gravity_bodies(self):
+    def test_setup_gravity_bodies(self):
         # Smoke test
         world = WorldModel(MagicMock(), 1.0)
         world.simulator = MagicMock()
@@ -93,7 +89,7 @@ def testsetup_gravity_bodies(self):
 
     @patch(baseworld + "_setup_world_objects", MagicMock())
     @patch(module + "ephemerisConverter", MagicMock())
-    def testsetup_epoch_object(self):
+    def test_setup_epoch_object(self):
         # Smoke test
         world = WorldModel(MagicMock(), 1.0)
         world.simulator = MagicMock()
@@ -109,7 +105,7 @@ class TestAtmosphereWorldModel:
 
     @patch(baseworld + "_setup_world_objects", MagicMock())
     @patch(module + "exponentialAtmosphere", MagicMock())
-    def testsetup_atmosphere_density_model(self):
+    def test_setup_atmosphere_density_model(self):
         # Smoke test
         world = AtmosphereWorldModel(MagicMock(), 1.0)
         world.simulator = MagicMock()
@@ -129,7 +125,7 @@ class TestEclipseWorldModel:
 
     @patch(baseworld + "_setup_world_objects", MagicMock())
     @patch(module + "eclipse", MagicMock())
-    def testsetup_eclipse_object(self):
+    def test_setup_eclipse_object(self):
         # Smoke test
         world = EclipseWorldModel(MagicMock(), 1.0)
         world.simulator = MagicMock()
@@ -151,7 +147,7 @@ def test_setup_world_objects(self, ground_set):
 
     @patch(groundworld + "_setup_world_objects", MagicMock())
     @patch(groundworld + "_create_ground_station")
-    def testsetup_ground_locations(self, mock_gs_create):
+    def test_setup_ground_locations(self, mock_gs_create):
         world = GroundStationWorldModel(MagicMock(), 1.0)
         world.setup_ground_locations([dict(a=1), dict(b=2)], 1000.0, 1.0, 1000.0)
         mock_gs_create.assert_has_calls(