diff --git a/tests/test_graph_laplacian.py b/tests/test_graph_laplacian.py
index 70fa65b..6f7737d 100644
--- a/tests/test_graph_laplacian.py
+++ b/tests/test_graph_laplacian.py
@@ -4,9 +4,7 @@ import torch
 from scipy.sparse import lil_matrix, csr_matrix, coo_matrix
 import os
 import sys
-#maindir = os.getcwd()
-#main_path = maindir[:maindir.find('ds4ms/code')]
-#sys.path.append(main_path+"/ds4ms/code/src")
+
 from AMBER.graph_laplacian import create_laplacian_matrix, delete_from_csr, \
     remove_vertex, laplacian, unnormalized_laplacian, laplacian_chain, \
     unnormalized_laplacian_chain