[Enhancement] Upgrade isort in pre-commit hook (#1217)

* update isort

* update setuptools

* fix

* pre-commit run --all-files

mmdet3d/datasets/s3dis_dataset.py

 # Copyright (c) OpenMMLab. All rights reserved.
-import numpy as np
 from os import path as osp
 
+import numpy as np
+
 from mmdet3d.core import show_seg_result
 from mmdet3d.core.bbox import DepthInstance3DBoxes
 from mmdet.datasets import DATASETS

mmdet3d/datasets/scannet_dataset.py

 # Copyright (c) OpenMMLab. All rights reserved.
-import numpy as np
 import tempfile
 import warnings
 from os import path as osp
 
+import numpy as np
+
 from mmdet3d.core import show_result, show_seg_result
 from mmdet3d.core.bbox import DepthInstance3DBoxes
 from mmdet.datasets import DATASETS

mmdet3d/datasets/sunrgbd_dataset.py

 # Copyright (c) OpenMMLab. All rights reserved.
-import numpy as np
 from collections import OrderedDict
 from os import path as osp
 
+import numpy as np
+
 from mmdet3d.core import show_multi_modality_result, show_result
 from mmdet3d.core.bbox import DepthInstance3DBoxes
 from mmdet.core import eval_map

mmdet3d/datasets/waymo_dataset.py

 # Copyright (c) OpenMMLab. All rights reserved.
-import mmcv
-import numpy as np
 import os
 import tempfile
+from os import path as osp
+
+import mmcv
+import numpy as np
 import torch
 from mmcv.utils import print_log
-from os import path as osp
 
 from mmdet.datasets import DATASETS
 from ..core.bbox import Box3DMode, points_cam2img

mmdet3d/models/backbones/base_pointnet.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import warnings
 from abc import ABCMeta
+
 from mmcv.runner import BaseModule
 
 

mmdet3d/models/backbones/dla.py

 # Copyright (c) OpenMMLab. All rights reserved.
-import torch
 import warnings
+
+import torch
 from mmcv.cnn import build_conv_layer, build_norm_layer
 from mmcv.runner import BaseModule
 from torch import nn

mmdet3d/models/backbones/multi_backbone.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import copy
-import torch
 import warnings
+
+import torch
 from mmcv.cnn import ConvModule
 from mmcv.runner import BaseModule, auto_fp16
 from torch import nn as nn

mmdet3d/models/backbones/second.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import warnings
+
 from mmcv.cnn import build_conv_layer, build_norm_layer
 from mmcv.runner import BaseModule
 from torch import nn as nn

mmdet3d/models/builder.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import warnings
+
 from mmcv.cnn import MODELS as MMCV_MODELS
 from mmcv.utils import Registry
 

mmdet3d/models/decode_heads/decode_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
 from abc import ABCMeta, abstractmethod
+
 from mmcv.cnn import normal_init
 from mmcv.runner import BaseModule, auto_fp16, force_fp32
 from torch import nn as nn

mmdet3d/models/dense_heads/anchor_free_mono3d_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
-import torch
 from abc import abstractmethod
+
+import torch
 from mmcv.cnn import ConvModule, bias_init_with_prob, normal_init
 from mmcv.runner import force_fp32
 from torch import nn as nn

mmdet3d/models/dense_heads/base_mono3d_dense_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
 from abc import ABCMeta, abstractmethod
+
 from mmcv.runner import BaseModule
 
 

mmdet3d/models/dense_heads/centerpoint_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import copy
+
 import torch
 from mmcv.cnn import ConvModule, build_conv_layer
 from mmcv.runner import BaseModule, force_fp32

mmdet3d/models/dense_heads/fcos_mono3d_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
+from logging import warning
+
 import numpy as np
 import torch
-from logging import warning
 from mmcv.cnn import Scale, normal_init
 from mmcv.runner import force_fp32
 from torch import nn as nn

mmdet3d/models/dense_heads/groupfree3d_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import copy
+
 import numpy as np
 import torch
 from mmcv import ConfigDict

mmdet3d/models/dense_heads/shape_aware_head.py

 # Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+
 import numpy as np
 import torch
-import warnings
 from mmcv.cnn import ConvModule
 from mmcv.runner import BaseModule
 from torch import nn as nn

mmdet3d/models/detectors/base.py

 # Copyright (c) OpenMMLab. All rights reserved.
+from os import path as osp
+
 import mmcv
 import torch
 from mmcv.parallel import DataContainer as DC
 from mmcv.runner import auto_fp16
-from os import path as osp
 
 from mmdet3d.core import Box3DMode, Coord3DMode, show_result
 from mmdet.models.detectors import BaseDetector

mmdet3d/models/detectors/imvotenet.py

 # Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+
 import numpy as np
 import torch
-import warnings
 
 from mmdet3d.core import bbox3d2result, merge_aug_bboxes_3d
 from mmdet3d.models.utils import MLP

mmdet3d/models/detectors/mvx_two_stage.py

 # Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from os import path as osp
+
 import mmcv
 import torch
-import warnings
 from mmcv.parallel import DataContainer as DC
 from mmcv.runner import force_fp32
-from os import path as osp
 from torch.nn import functional as F
 
 from mmdet3d.core import (Box3DMode, Coord3DMode, bbox3d2result,

mmdet3d/models/detectors/single_stage_mono3d.py

 # Copyright (c) OpenMMLab. All rights reserved.
+from os import path as osp
+
 import mmcv
 import numpy as np
 import torch
 from mmcv.parallel import DataContainer as DC
-from os import path as osp
 
 from mmdet3d.core import (CameraInstance3DBoxes, bbox3d2result,
                           show_multi_modality_result)