diff --git a/mattport/utils/math.py b/mattport/utils/math.py
index ffd66e3c0..87b571ee1 100644
--- a/mattport/utils/math.py
+++ b/mattport/utils/math.py
@@ -16,7 +16,7 @@ def components_from_spherical_harmonics(levels: int, directions: TensorType[...,
     num_components = levels**2
     components = torch.zeros((*directions.shape[:-1], num_components)).to(directions.device)
 
-    assert levels > 0 and levels <= 5, f"SH levels must be in [1,4], got {levels}"
+    assert 1 <= levels <= 5, f"SH levels must be in [1,4], got {levels}"
     assert directions.shape[-1] == 3, f"Direction input should have three dimensions. Got {directions.shape[-1]}"
 
     x = directions[..., 0]
diff --git a/tests/nerf/field_modules/test_encodings.py b/tests/nerf/field_modules/test_encodings.py
index 1708330d8..3654daa3e 100644
--- a/tests/nerf/field_modules/test_encodings.py
+++ b/tests/nerf/field_modules/test_encodings.py
@@ -1,7 +1,6 @@
 """
 Encoding Tests
 """
-from multiprocessing.sharedctypes import Value
 import pytest
 import torch
 from mattport.nerf.field_modules import encoding