diff --git a/examples/cbc_iris.py b/examples/cbc_iris.py
index 47b3e3f..6837b36 100644
--- a/examples/cbc_iris.py
+++ b/examples/cbc_iris.py
@@ -1,5 +1,4 @@
 """CBC example using the Iris dataset."""
-
 import argparse
 import warnings