diff --git a/mmseg/models/backbones/__init__.py b/mmseg/models/backbones/__init__.py
index 1cb52384d..fd6edc3cd 100644
--- a/mmseg/models/backbones/__init__.py
+++ b/mmseg/models/backbones/__init__.py
@@ -1,6 +1,6 @@
+from .fast_scnn import FastSCNN
 from .hrnet import HRNet
 from .resnet import ResNet, ResNetV1c, ResNetV1d
 from .resnext import ResNeXt
-from .fast_scnn import FastSCNN
 
 __all__ = ['ResNet', 'ResNetV1c', 'ResNetV1d', 'ResNeXt', 'HRNet', 'FastSCNN']
diff --git a/mmseg/utils/collect_env.py b/mmseg/utils/collect_env.py
index 05a66c91c..101af4527 100644
--- a/mmseg/utils/collect_env.py
+++ b/mmseg/utils/collect_env.py
@@ -9,7 +9,6 @@ import torch
 import torchvision
 from mmcv.utils.parrots_wrapper import get_build_config
 
-
 import mmseg