diff --git a/grid_methods/spherical_coordinates/angular_matrix_elements.py b/grid_methods/spherical_coordinates/angular_matrix_elements.py
index 781b91a..05c20e3 100644
--- a/grid_methods/spherical_coordinates/angular_matrix_elements.py
+++ b/grid_methods/spherical_coordinates/angular_matrix_elements.py
@@ -1,8 +1,7 @@
 import numpy as np
-from numpy.polynomial import legendre
-from scipy.special import eval_legendre as Legendre
 import time
-from scipy.special import sph_harm, spherical_jn
+from numpy.polynomial import legendre
+from scipy.special import eval_legendre as Legendre, sph_harm, spherical_jn
 from pathlib import Path
 
 
diff --git a/grid_methods/spherical_coordinates/propagators.py b/grid_methods/spherical_coordinates/propagators.py
index 6307651..19d5dae 100644
--- a/grid_methods/spherical_coordinates/propagators.py
+++ b/grid_methods/spherical_coordinates/propagators.py
@@ -5,7 +5,6 @@
 import tqdm
 from grid_methods.spherical_coordinates.utils import (
     Counter,
-    quadrature,
 )
 from opt_einsum import contract