diff --git a/pytorch_lightning/trainer/trainer.py b/pytorch_lightning/trainer/trainer.py
index 57855128..758de820 100644
--- a/pytorch_lightning/trainer/trainer.py
+++ b/pytorch_lightning/trainer/trainer.py
@@ -3,6 +3,7 @@ import sys
 import warnings
 import logging
 
+
 import torch
 import torch.distributed as dist
 import torch.multiprocessing as mp