cleaned up pep8 issues

pytorch_lightning/models/trainer.py

@@ -261,7 +261,7 @@ class Trainer(TrainerIO):
 
             if '.ckpt' in name:
                 epoch = name.split('epoch_')[1]
-                epoch = int(re.sub('[^0-9]', '' ,epoch))
+                epoch = int(re.sub('[^0-9]', '', epoch))
 
                 if epoch > last_epoch:
                     last_epoch = epoch

tests/test_models.py

@@ -123,8 +123,6 @@ def test_amp_gpu_ddp():
     run_gpu_model_test(trainer_options, model, hparams)
 
 
-
-
 def test_cpu_slurm_save_load():
     """
     Verify model save/load/checkpoint on CPU