diff --git a/pytorch_lightning/models/trainer.py b/pytorch_lightning/models/trainer.py
index 9af112c5..428d9ca5 100644
--- a/pytorch_lightning/models/trainer.py
+++ b/pytorch_lightning/models/trainer.py
@@ -29,6 +29,7 @@ def reduce_distributed_output(output, nb_gpus):
             output[k] = reduced
     return output
 
+
 class Trainer(TrainerIO):
 
     def __init__(self,