diff --git a/graphsage/aggregators.py b/graphsage/aggregators.py
index a23c891..bb24957 100644
--- a/graphsage/aggregators.py
+++ b/graphsage/aggregators.py
@@ -2,6 +2,7 @@ import torch
 import torch.nn as nn
 from torch.autograd import Variable
 
+
 import random
 
 """