diff --git a/examples/directivities/plot_directivity_3D.py b/examples/directivities/plot_directivity_3D.py
index 8d3e3688..bafa3764 100644
--- a/examples/directivities/plot_directivity_3D.py
+++ b/examples/directivities/plot_directivity_3D.py
@@ -1,5 +1,6 @@
 import matplotlib.pyplot as plt
 import numpy as np
+
 from pyroomacoustics.directivities import DirectionVector, HyperCardioid
 
 orientation = DirectionVector(azimuth=0, colatitude=45, degrees=True)
diff --git a/examples/directivities/simulation_with_measured_directivity.py b/examples/directivities/simulation_with_measured_directivity.py
index 55d4d416..f4291666 100644
--- a/examples/directivities/simulation_with_measured_directivity.py
+++ b/examples/directivities/simulation_with_measured_directivity.py
@@ -50,6 +50,7 @@
 """
 
 import matplotlib.pyplot as plt
+
 import pyroomacoustics as pra
 from pyroomacoustics.directivities import (
     Cardioid,