diff --git a/applications/tools/ps_demo.py b/applications/tools/ps_demo.py
index f8acb7d3c6b66beeb7d4a6914cf7161f4a5f2f9b..4e3ec9c359504768419deefa352c3f649bed1b84 100644
--- a/applications/tools/ps_demo.py
+++ b/applications/tools/ps_demo.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/apps/__init__.py b/ppgan/apps/__init__.py
index 6e8a7e9db2c17508d47f3092d5861ccc42aa2de9..ed269bf8e8e1e904d6e8c23f9b447ae498f7711d 100644
--- a/ppgan/apps/__init__.py
+++ b/ppgan/apps/__init__.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from .dain_predictor import DAINPredictor
 from .deepremaster_predictor import DeepRemasterPredictor
 from .deoldify_predictor import DeOldifyPredictor
diff --git a/ppgan/datasets/__init__.py b/ppgan/datasets/__init__.py
index fcfbbcaa3488f56915efb8be8ba4d244b2e13782..ff93aed2f37989ea21ab042c43e3791c89744a61 100644
--- a/ppgan/datasets/__init__.py
+++ b/ppgan/datasets/__init__.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/datasets/base_dataset.py b/ppgan/datasets/base_dataset.py
index fe93c71e718faaff1c019db9fb6632509d3db4f1..93e9577b900a74448f0af194fa2b5719a87707b3 100644
--- a/ppgan/datasets/base_dataset.py
+++ b/ppgan/datasets/base_dataset.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 # code was heavily based on https://github.com/junyanz/pytorch-CycleGAN-and-pix2pix
 import random
 import numpy as np
@@ -98,5 +112,5 @@ def get_transform(cfg,
             transform_list += [
                 transforms.Normalize(cfg.normalize.mean, cfg.normalize.std)
             ]
- 
+
     return transforms.Compose(transform_list)
diff --git a/ppgan/datasets/builder.py b/ppgan/datasets/builder.py
index 68c57e05516f2a39680dff0938de9e1ade900fd6..ac994ab0f69c04aad016a59134ed3d4a32b46d00 100644
--- a/ppgan/datasets/builder.py
+++ b/ppgan/datasets/builder.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import time
 import paddle
 import numbers
@@ -59,17 +73,15 @@ class DictDataLoader():
         place = paddle.CUDAPlace(ParallelEnv().dev_id) \
                     if ParallelEnv().nranks > 1 else paddle.CUDAPlace(0)
 
-        sampler = DistributedBatchSampler(
-            self.dataset,
-            batch_size=batch_size,
-            shuffle=True if is_train else False,
-            drop_last=True if is_train else False)
-
-        self.dataloader = paddle.io.DataLoader(
-            self.dataset,
-            batch_sampler=sampler,
-            places=place,
-            num_workers=num_workers)
+        sampler = DistributedBatchSampler(self.dataset,
+                                          batch_size=batch_size,
+                                          shuffle=True if is_train else False,
+                                          drop_last=True if is_train else False)
+
+        self.dataloader = paddle.io.DataLoader(self.dataset,
+                                               batch_sampler=sampler,
+                                               places=place,
+                                               num_workers=num_workers)
 
         self.batch_size = batch_size
 
diff --git a/ppgan/datasets/image_folder.py b/ppgan/datasets/image_folder.py
index 95e7658f99f9bd4e580a65b0e4c4a2e295430031..a9eec8aacc793e0ae325208774a9a82949028fdb 100644
--- a/ppgan/datasets/image_folder.py
+++ b/ppgan/datasets/image_folder.py
@@ -1,3 +1,16 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 """A modified image folder class
 
 We modify the official PyTorch image folder (https://github.com/pytorch/vision/blob/master/torchvision/datasets/folder.py)
@@ -10,9 +23,20 @@ import os
 import os.path
 
 IMG_EXTENSIONS = [
-    '.jpg', '.JPG', '.jpeg', '.JPEG',
-    '.png', '.PNG', '.ppm', '.PPM', '.bmp', '.BMP',
-    '.tif', '.TIF', '.tiff', '.TIFF',
+    '.jpg',
+    '.JPG',
+    '.jpeg',
+    '.JPEG',
+    '.png',
+    '.PNG',
+    '.ppm',
+    '.PPM',
+    '.bmp',
+    '.BMP',
+    '.tif',
+    '.TIF',
+    '.tiff',
+    '.TIFF',
 ]
 
 
@@ -29,7 +53,7 @@ def make_dataset(dir, max_dataset_size=float("inf")):
             if is_image_file(fname):
                 path = os.path.join(root, fname)
                 images.append(path)
-                
+
     return images[:min(float(max_dataset_size), len(images))]
 
 
@@ -38,14 +62,16 @@ def default_loader(path):
 
 
 class ImageFolder(Dataset):
-
-    def __init__(self, root, transform=None, return_paths=False,
+    def __init__(self,
+                 root,
+                 transform=None,
+                 return_paths=False,
                  loader=default_loader):
         imgs = make_dataset(root)
         if len(imgs) == 0:
-            raise(RuntimeError("Found 0 images in: " + root + "\n"
-                               "Supported image extensions are: " +
-                               ",".join(IMG_EXTENSIONS)))
+            raise (RuntimeError("Found 0 images in: " + root + "\n"
+                                "Supported image extensions are: " +
+                                ",".join(IMG_EXTENSIONS)))
 
         self.root = root
         self.imgs = imgs
diff --git a/ppgan/datasets/makeup_dataset.py b/ppgan/datasets/makeup_dataset.py
index cf8ac8d3aedbf4ec70de74a15f8a4a766df8a6a8..56cdd9197352dd2639bbedccc14efb1d707fd714 100644
--- a/ppgan/datasets/makeup_dataset.py
+++ b/ppgan/datasets/makeup_dataset.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/datasets/paired_dataset.py b/ppgan/datasets/paired_dataset.py
index 2b0559008da8754d1b13298275c9f28bb31eb761..2c6be37c56d9ca59ff6c5dbda3f0b05b47cb04a4 100644
--- a/ppgan/datasets/paired_dataset.py
+++ b/ppgan/datasets/paired_dataset.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import cv2
 import paddle
 import os.path
diff --git a/ppgan/datasets/single_dataset.py b/ppgan/datasets/single_dataset.py
index b2b745461fe8cd8df802d4ad35661304d0e5e010..ef2c03b4f2cf33535408a272be1d95fad3d9eb1f 100644
--- a/ppgan/datasets/single_dataset.py
+++ b/ppgan/datasets/single_dataset.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import cv2
 import paddle
 from .base_dataset import BaseDataset, get_transform
diff --git a/ppgan/datasets/sr_image_dataset.py b/ppgan/datasets/sr_image_dataset.py
index 977d2657ce10b1b022bb3157d067616425fd7ef3..1a4fc8183cff26f1b37bc880d1c89f91d76f9425 100644
--- a/ppgan/datasets/sr_image_dataset.py
+++ b/ppgan/datasets/sr_image_dataset.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 # import mmcv
 import os
 import cv2
@@ -33,13 +47,15 @@ def scandir(dir_path, suffix=None, recursive=False):
                     yield rel_path
             else:
                 if recursive:
-                    yield from _scandir(
-                        entry.path, suffix=suffix, recursive=recursive)
+                    yield from _scandir(entry.path,
+                                        suffix=suffix,
+                                        recursive=recursive)
                 else:
                     continue
 
     return _scandir(dir_path, suffix=suffix, recursive=recursive)
 
+
 def paired_paths_from_folder(folders, keys, filename_tmpl):
     """Generate paired paths from folders.
     """
@@ -70,6 +86,7 @@ def paired_paths_from_folder(folders, keys, filename_tmpl):
                   (f'{gt_key}_path', gt_path)]))
     return paths
 
+
 def paired_random_crop(img_gts, img_lqs, gt_patch_size, scale, gt_path):
     """Paired random crop.
 
@@ -180,7 +197,6 @@ def augment(imgs, hflip=True, rotation=True, flows=None):
 @DATASETS.register()
 class SRImageDataset(Dataset):
     """Paired image dataset for image restoration."""
-
     def __init__(self, cfg):
         super(SRImageDataset, self).__init__()
         self.cfg = cfg
diff --git a/ppgan/datasets/transforms/__init__.py b/ppgan/datasets/transforms/__init__.py
index befc18568797cccb0670da028407797c02f247ef..9cfb01ab0fbd286b05bc32eee90c66d1a9c672f2 100644
--- a/ppgan/datasets/transforms/__init__.py
+++ b/ppgan/datasets/transforms/__init__.py
@@ -1 +1,15 @@
-from .transforms import PairedRandomCrop, PairedRandomHorizontalFlip
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .transforms import PairedRandomCrop, PairedRandomHorizontalFlip
diff --git a/ppgan/datasets/transforms/builder.py b/ppgan/datasets/transforms/builder.py
index 57428989936f7bc7a537adef65e677cd4778cc11..3e9f23bd52bbf7ca14dbcaf0dbd8635c8d2b1bb5 100644
--- a/ppgan/datasets/transforms/builder.py
+++ b/ppgan/datasets/transforms/builder.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import copy
 import traceback
 import paddle
diff --git a/ppgan/datasets/transforms/makeup_transforms.py b/ppgan/datasets/transforms/makeup_transforms.py
index 8206b5ab461143d88ac733f02cc3ddf3676c2b97..ba2265a55db6efea7545ef4b0febb1894219a413 100644
--- a/ppgan/datasets/transforms/makeup_transforms.py
+++ b/ppgan/datasets/transforms/makeup_transforms.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/datasets/transforms/transforms.py b/ppgan/datasets/transforms/transforms.py
index 0459d635a018d7b5cbb034ad8947a9aafb7b8698..9d0c83a7224da7677ad7c087643bcedeb1c930e2 100644
--- a/ppgan/datasets/transforms/transforms.py
+++ b/ppgan/datasets/transforms/transforms.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import sys
 import random
 import numbers
diff --git a/ppgan/datasets/unpaired_dataset.py b/ppgan/datasets/unpaired_dataset.py
index 494099cdb46c920dc3181369f04dd6f03aa00329..53ffbbe2b34813c53f769b2a452862b071577426 100644
--- a/ppgan/datasets/unpaired_dataset.py
+++ b/ppgan/datasets/unpaired_dataset.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import cv2
 import random
 import os.path
diff --git a/ppgan/engine/trainer.py b/ppgan/engine/trainer.py
index b518c6ba85044ded0dc105d8d2c29f6a28d08d0a..0e91a8fdf8fc2bf1f8b6a0a1d65fc74d210e2d0b 100644
--- a/ppgan/engine/trainer.py
+++ b/ppgan/engine/trainer.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import os
 import time
 import copy
diff --git a/ppgan/faceutils/__init__.py b/ppgan/faceutils/__init__.py
index 59f58a197c9a86fdd345c0303ab0e0b826f4888a..0c5a2a8710cd92f4f805aa8ac271d8ec51e38a1c 100644
--- a/ppgan/faceutils/__init__.py
+++ b/ppgan/faceutils/__init__.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/faceutils/dlibutils/__init__.py b/ppgan/faceutils/dlibutils/__init__.py
index b56699f32f682fbf38b04d2052e3f560c1a933f5..4853462a0cff780420d2577bbfa6e0c6e22c88cc 100644
--- a/ppgan/faceutils/dlibutils/__init__.py
+++ b/ppgan/faceutils/dlibutils/__init__.py
@@ -1 +1,15 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from .dlib_utils import detect, crop, landmarks, crop_from_array
diff --git a/ppgan/faceutils/dlibutils/dlib_utils.py b/ppgan/faceutils/dlibutils/dlib_utils.py
index 8f1fb87d786acf9eddc38ffb1430c219181e2b04..5be958af7949e0bcc2fc4795e13a0e28039d8e58 100644
--- a/ppgan/faceutils/dlibutils/dlib_utils.py
+++ b/ppgan/faceutils/dlibutils/dlib_utils.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/faceutils/image.py b/ppgan/faceutils/image.py
index aed144f2746a7400ba3e4c540490fba5d148140b..f48f2ffc52f6ec3e6993a6015418ed86a70325f3 100644
--- a/ppgan/faceutils/image.py
+++ b/ppgan/faceutils/image.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 import cv2
 from io import BytesIO
diff --git a/ppgan/faceutils/mask/__init__.py b/ppgan/faceutils/mask/__init__.py
index 15c2e99dbf311d622e7e64d21954dfbed0e7369a..6babcde6f44939aacb919e4247dec1dc2fba1398 100644
--- a/ppgan/faceutils/mask/__init__.py
+++ b/ppgan/faceutils/mask/__init__.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/faceutils/mask/face_parser.py b/ppgan/faceutils/mask/face_parser.py
index 94e58e9f8791a3159b511b3b1b51f660ff5e0697..14b90b7f1b90a5b20cb6b89e4254863c05b4ea73 100644
--- a/ppgan/faceutils/mask/face_parser.py
+++ b/ppgan/faceutils/mask/face_parser.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import os.path as osp
 
 import numpy as np
diff --git a/ppgan/faceutils/mask/model.py b/ppgan/faceutils/mask/model.py
index 613ea1489387af0fdd5f160c4fb9276db6e83453..a61f7979b1a7758b622abda4f49c4eca24cdd8cf 100644
--- a/ppgan/faceutils/mask/model.py
+++ b/ppgan/faceutils/mask/model.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/metric/compute_fid.py b/ppgan/metric/compute_fid.py
index 3e1d013ed2dfcc75ec034e30c886a6f3c2619efd..da213d2586fc9da41b39fb5afb24af6da458cf6a 100644
--- a/ppgan/metric/compute_fid.py
+++ b/ppgan/metric/compute_fid.py
@@ -1,4 +1,4 @@
-#copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 #Licensed under the Apache License, Version 2.0 (the "License");
 #you may not use this file except in compliance with the License.
@@ -26,6 +26,7 @@ from paddle.fluid.dygraph.base import to_variable
 try:
     from tqdm import tqdm
 except:
+
     def tqdm(x):
         return x
 
@@ -131,7 +132,13 @@ def calculate_fid_given_img(img_fake,
     return fid_value
 
 
-def _get_activations(files, model, batch_size, dims, use_gpu, premodel_path, style=None):
+def _get_activations(files,
+                     model,
+                     batch_size,
+                     dims,
+                     use_gpu,
+                     premodel_path,
+                     style=None):
     if len(files) % batch_size != 0:
         print(('Warning: number of images is not a multiple of the '
                'batch size. Some samples are going to be ignored.'))
@@ -159,8 +166,7 @@ def _get_activations(files, model, batch_size, dims, use_gpu, premodel_path, sty
 
                 img_list.append(np.array(im).astype('float32'))
 
-            images = np.array(
-                img_list)
+            images = np.array(img_list)
         else:
             images = np.array(
                 [imread(str(f)).astype(np.float32) for f in files[start:end]])
@@ -179,7 +185,7 @@ def _get_activations(files, model, batch_size, dims, use_gpu, premodel_path, sty
             std = np.array([0.229, 0.224, 0.225]).astype('float32')
             images[:] = (images[:] - mean[:, None, None]) / std[:, None, None]
 
-        if style=='stargan':
+        if style == 'stargan':
             pred_arr[start:end] = inception_infer(images, premodel_path)
         else:
             with fluid.dygraph.guard():
@@ -197,10 +203,11 @@ def _get_activations(files, model, batch_size, dims, use_gpu, premodel_path, sty
 
 def inception_infer(x, model_path):
     exe = fluid.Executor()
-    [inference_program, feed_target_names, fetch_targets] = fluid.io.load_inference_model(model_path, exe)
+    [inference_program, feed_target_names,
+     fetch_targets] = fluid.io.load_inference_model(model_path, exe)
     results = exe.run(inference_program,
-                  feed={feed_target_names[0]: x},
-                  fetch_list=fetch_targets)
+                      feed={feed_target_names[0]: x},
+                      fetch_list=fetch_targets)
     return results[0]
 
 
@@ -210,7 +217,7 @@ def _calculate_activation_statistics(files,
                                      batch_size=50,
                                      dims=2048,
                                      use_gpu=False,
-                                     style = None):
+                                     style=None):
     act = _get_activations(files, model, batch_size, dims, use_gpu,
                            premodel_path, style)
     mu = np.mean(act, axis=0)
@@ -218,8 +225,13 @@ def _calculate_activation_statistics(files,
     return mu, sigma
 
 
-def _compute_statistics_of_path(path, model, batch_size, dims, use_gpu,
-                                premodel_path, style=None):
+def _compute_statistics_of_path(path,
+                                model,
+                                batch_size,
+                                dims,
+                                use_gpu,
+                                premodel_path,
+                                style=None):
     if path.endswith('.npz'):
         f = np.load(path)
         m, s = f['mu'][:], f['sigma'][:]
@@ -231,7 +243,8 @@ def _compute_statistics_of_path(path, model, batch_size, dims, use_gpu,
                     filenames, '*.jpg') or fnmatch.filter(filenames, '*.png'):
                 files.append(os.path.join(root, filename))
         m, s = _calculate_activation_statistics(files, model, premodel_path,
-                                                batch_size, dims, use_gpu, style)
+                                                batch_size, dims, use_gpu,
+                                                style)
     return m, s
 
 
@@ -241,7 +254,7 @@ def calculate_fid_given_paths(paths,
                               use_gpu,
                               dims,
                               model=None,
-                              style = None):
+                              style=None):
     assert os.path.exists(
         premodel_path
     ), 'pretrain_model path {} is not exists! Please download it first'.format(
diff --git a/ppgan/metric/inception.py b/ppgan/metric/inception.py
index 35a2866005f1df574a35a6b11a02c737445da81c..643d4766e4deb71a1b3d5c47a2777cfdc9b677a5 100644
--- a/ppgan/metric/inception.py
+++ b/ppgan/metric/inception.py
@@ -1,4 +1,4 @@
-#copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 #Licensed under the Apache License, Version 2.0 (the "License");
 #you may not use this file except in compliance with the License.
diff --git a/ppgan/metric/metric_util.py b/ppgan/metric/metric_util.py
index d81c2f64086b219f045a58d65463b0099a793aad..857304d1be40a82dedec190eadea4778ef5b43c8 100644
--- a/ppgan/metric/metric_util.py
+++ b/ppgan/metric/metric_util.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 
 
@@ -29,6 +43,7 @@ def reorder_image(img, input_order='HWC'):
         img = img.transpose(1, 2, 0)
     return img
 
+
 def bgr2ycbcr(img, y_only=False):
     """Convert a BGR image to YCbCr image.
 
@@ -52,16 +67,17 @@ def bgr2ycbcr(img, y_only=False):
             and range as input image.
     """
     img_type = img.dtype
-    img = _convert_input_type_range(img)
+    #img = _convert_input_type_range(img)
     if y_only:
         out_img = np.dot(img, [24.966, 128.553, 65.481]) + 16.0
     else:
         out_img = np.matmul(
             img, [[24.966, 112.0, -18.214], [128.553, -74.203, -93.786],
                   [65.481, -37.797, 112.0]]) + [16, 128, 128]
-    out_img = _convert_output_type_range(out_img, img_type)
+    #out_img = _convert_output_type_range(out_img, img_type)
     return out_img
 
+
 def to_y_channel(img):
     """Change to Y channel of YCbCr.
 
diff --git a/ppgan/metric/psnr_ssim.py b/ppgan/metric/psnr_ssim.py
index 65cfde310cc1e2b8149443cdd9c85330e278509e..d5c371cf67c107dc5385f919a4958a484b38ee40 100644
--- a/ppgan/metric/psnr_ssim.py
+++ b/ppgan/metric/psnr_ssim.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import cv2
 import numpy as np
 
diff --git a/ppgan/metric/test_fid_score.py b/ppgan/metric/test_fid_score.py
index 36412a55104085154dc7dac3b7d923a369ceab07..027a051012c11bf309605fccdd19f80b75b5fb01 100644
--- a/ppgan/metric/test_fid_score.py
+++ b/ppgan/metric/test_fid_score.py
@@ -1,4 +1,4 @@
-#copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 #Licensed under the Apache License, Version 2.0 (the "License");
 #you may not use this file except in compliance with the License.
@@ -38,9 +38,10 @@ def parse_args():
                         type=int,
                         default=1,
                         help='sample number in a batch for inference.')
-    parser.add_argument('--style',
-                        type=str,
-                        help='calculation style: stargan or default (gan-compression style)')
+    parser.add_argument(
+        '--style',
+        type=str,
+        help='calculation style: stargan or default (gan-compression style)')
     args = parser.parse_args()
     return args
 
@@ -53,8 +54,12 @@ def main():
     inference_model_path = args.inference_model
     batch_size = args.batch_size
 
-    fid_value = calculate_fid_given_paths(paths, inference_model_path,
-                                          batch_size, args.use_gpu, 2048, style=args.style)
+    fid_value = calculate_fid_given_paths(paths,
+                                          inference_model_path,
+                                          batch_size,
+                                          args.use_gpu,
+                                          2048,
+                                          style=args.style)
     print('FID: ', fid_value)
 
 
diff --git a/ppgan/models/__init__.py b/ppgan/models/__init__.py
index 4954a2d3f1e9f4caa07ccd7620c65579d9995e18..9b7b4bc99c9f00c49684fa03e26420a9619f0b0a 100644
--- a/ppgan/models/__init__.py
+++ b/ppgan/models/__init__.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/models/backbones/__init__.py b/ppgan/models/backbones/__init__.py
index c876f93de18a3a11b0946e65dc1f610d73bf7ec9..1c6f371833742fbd303e301d850c2204d50e8db4 100644
--- a/ppgan/models/backbones/__init__.py
+++ b/ppgan/models/backbones/__init__.py
@@ -1 +1,15 @@
-from .resnet_backbone import resnet18, resnet34, resnet50, resnet101, resnet152
\ No newline at end of file
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .resnet_backbone import resnet18, resnet34, resnet50, resnet101, resnet152
diff --git a/ppgan/models/backbones/resnet_backbone.py b/ppgan/models/backbones/resnet_backbone.py
index b062a7bb97909d77e065aef44cb446fdb6f7717a..6ba9c07a9105effe603cc535745f6710325830f6 100644
--- a/ppgan/models/backbones/resnet_backbone.py
+++ b/ppgan/models/backbones/resnet_backbone.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import paddle.nn as nn
 
diff --git a/ppgan/models/base_model.py b/ppgan/models/base_model.py
index 467336b409fd197432a3a8ada93a8520d3e8a498..09b0c652a414b073dadd651d3bb1582c509fccae 100644
--- a/ppgan/models/base_model.py
+++ b/ppgan/models/base_model.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 # code was heavily based on https://github.com/junyanz/pytorch-CycleGAN-and-pix2pix
 import os
 import paddle
diff --git a/ppgan/models/builder.py b/ppgan/models/builder.py
index 607f4e915f43eb85b0032981e70081ba03cb2a8c..6ed338ea6ecb7178e5068df50380494f23de14b3 100644
--- a/ppgan/models/builder.py
+++ b/ppgan/models/builder.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 
 from ..utils.registry import Registry
diff --git a/ppgan/models/cycle_gan_model.py b/ppgan/models/cycle_gan_model.py
index a2ada1b323d1f19656e9f730889c613266015214..c981dbf6c92a0603059804904f12cdcf54619ef5 100644
--- a/ppgan/models/cycle_gan_model.py
+++ b/ppgan/models/cycle_gan_model.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 from .base_model import BaseModel
 
diff --git a/ppgan/models/discriminators/__init__.py b/ppgan/models/discriminators/__init__.py
index c1fe3e6a48a2c4a36bc1a1064f81178873fdbbbf..436724f6561d094f23ba1e9993a4be46c1f88d5b 100644
--- a/ppgan/models/discriminators/__init__.py
+++ b/ppgan/models/discriminators/__init__.py
@@ -1 +1,15 @@
-from .nlayers import NLayerDiscriminator
\ No newline at end of file
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .nlayers import NLayerDiscriminator
diff --git a/ppgan/models/discriminators/builder.py b/ppgan/models/discriminators/builder.py
index 6d91d956555d3185f02b395a7f2954e9914a1d0d..056730715f1e5bb23e5864fa52a9fe2c5626cb35 100644
--- a/ppgan/models/discriminators/builder.py
+++ b/ppgan/models/discriminators/builder.py
@@ -1,7 +1,20 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import copy
 from ...utils.registry import Registry
 
-
 DISCRIMINATORS = Registry("DISCRIMINATOR")
 
 
diff --git a/ppgan/models/discriminators/nlayers.py b/ppgan/models/discriminators/nlayers.py
index d6376e151eb102c8c2c3932c0149c912f7f73350..3349acdaf455f753e43dde5d4abfecf6ed87bc4d 100644
--- a/ppgan/models/discriminators/nlayers.py
+++ b/ppgan/models/discriminators/nlayers.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/models/generators/__init__.py b/ppgan/models/generators/__init__.py
index 4429d9891e133db9239545ce8916b9ec6a508f5f..6f6b433a35b579dfcce0e1760480eb2beac613af 100644
--- a/ppgan/models/generators/__init__.py
+++ b/ppgan/models/generators/__init__.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/models/generators/builder.py b/ppgan/models/generators/builder.py
index 4aa7f61ef5145ee859a99db962b055d025d34306..85604f0953ba5569b9f1d63f8fcaf1d152004e32 100644
--- a/ppgan/models/generators/builder.py
+++ b/ppgan/models/generators/builder.py
@@ -1,7 +1,20 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import copy
 from ...utils.registry import Registry
 
-
 GENERATORS = Registry("GENERATOR")
 
 
diff --git a/ppgan/models/generators/deoldify.py b/ppgan/models/generators/deoldify.py
index b806016a6f0412cc548b27eaa3149576042dc806..909ce38612c547a89829795a00d28091ea155535 100644
--- a/ppgan/models/generators/deoldify.py
+++ b/ppgan/models/generators/deoldify.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 import paddle
 import paddle.nn as nn
diff --git a/ppgan/models/generators/hook.py b/ppgan/models/generators/hook.py
index 0a7fe379f421314c8574054fec8c775bcdef609b..ba1bcd4819096a4f7eb77a036a897ddf7122e3a2 100644
--- a/ppgan/models/generators/hook.py
+++ b/ppgan/models/generators/hook.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 
 import paddle
diff --git a/ppgan/models/generators/makeup.py b/ppgan/models/generators/makeup.py
index 80113735cf3543eba14842a4ba4a4d243f3e736c..236f34058a7dd003a4cc82ef77e52bf0fcea0afa 100644
--- a/ppgan/models/generators/makeup.py
+++ b/ppgan/models/generators/makeup.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/models/generators/occlusion_aware.py b/ppgan/models/generators/occlusion_aware.py
index 1511b717677c3ecaa628224347515dca6f741c33..41a68fa58818ec67aa48e5531452a2b07b114b30 100644
--- a/ppgan/models/generators/occlusion_aware.py
+++ b/ppgan/models/generators/occlusion_aware.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 from paddle import nn
 import paddle.nn.functional as F
diff --git a/ppgan/models/generators/remaster.py b/ppgan/models/generators/remaster.py
index f81f1be47faab99854fb5104275eaf42282584fc..8de4bd07e05dd583f881fe1b2c8b62ea419d6765 100644
--- a/ppgan/models/generators/remaster.py
+++ b/ppgan/models/generators/remaster.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F
diff --git a/ppgan/models/generators/resnet.py b/ppgan/models/generators/resnet.py
index 9462055d32554d4a2991dc988e73a4a9366ba888..5e83e7116817c217908104d5f211a4f711d12584 100644
--- a/ppgan/models/generators/resnet.py
+++ b/ppgan/models/generators/resnet.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import paddle.nn as nn
 import functools
diff --git a/ppgan/models/generators/rrdb_net.py b/ppgan/models/generators/rrdb_net.py
index a083eed491cf999981ead45a8a83868969beeb10..7381e149a8e104acab6fb392f7ea12fef18715a6 100644
--- a/ppgan/models/generators/rrdb_net.py
+++ b/ppgan/models/generators/rrdb_net.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import functools
 import paddle
 import paddle.nn as nn
diff --git a/ppgan/models/generators/unet.py b/ppgan/models/generators/unet.py
index f731f8ba370e7ac5c185b0536b80aab7611f748c..38d294a686fe884951b4ff657ad790bc97874ce7 100644
--- a/ppgan/models/generators/unet.py
+++ b/ppgan/models/generators/unet.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import functools
 import paddle
 import paddle.nn as nn
diff --git a/ppgan/models/losses.py b/ppgan/models/losses.py
index 6a5bd6181b083a567a95cff43f66494a76ad1f19..7dd63f24a3120b66108f500231d47218a587c0b4 100644
--- a/ppgan/models/losses.py
+++ b/ppgan/models/losses.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 
 import paddle
@@ -10,7 +24,6 @@ class GANLoss(nn.Layer):
     The GANLoss class abstracts away the need to create the target label tensor
     that has the same size as the input.
     """
-
     def __init__(self, gan_mode, target_real_label=1.0, target_fake_label=0.0):
         """ Initialize the GANLoss class.
 
diff --git a/ppgan/models/makeup_model.py b/ppgan/models/makeup_model.py
index b8c15d5e13ae0f651942082f1572cc6a02072b07..1924d0df5d0c5446770d5e0a1f9d7c40d3e383d4 100644
--- a/ppgan/models/makeup_model.py
+++ b/ppgan/models/makeup_model.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/models/pix2pix_model.py b/ppgan/models/pix2pix_model.py
index ffc7f585d7dc3fa05466ed78b29f044f4f00ffe2..80b31578871417008355d0c50d5e6d9820eff30c 100644
--- a/ppgan/models/pix2pix_model.py
+++ b/ppgan/models/pix2pix_model.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 from .base_model import BaseModel
 
diff --git a/ppgan/models/sr_model.py b/ppgan/models/sr_model.py
index 2c6bc93634622f370e9e70590e8f83e387485b88..102ed9de790522bf4932c270368119d5e3cbbcae 100644
--- a/ppgan/models/sr_model.py
+++ b/ppgan/models/sr_model.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from collections import OrderedDict
 import paddle
 import paddle.nn as nn
diff --git a/ppgan/models/srgan_model.py b/ppgan/models/srgan_model.py
index 32ca581f8fcaac86fe3bf1bfeaca7617ecc0e06a..0dc8a8820bd020369a7b5b36a5067429ea8fca9d 100644
--- a/ppgan/models/srgan_model.py
+++ b/ppgan/models/srgan_model.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from collections import OrderedDict
 import paddle
 import paddle.nn as nn
diff --git a/ppgan/modules/dense_motion.py b/ppgan/modules/dense_motion.py
index bb0cc66ada031ab0098c128d048d2356d9c80e2a..dce20e278f1aaacc70821c9d515666d64dd2d3bd 100644
--- a/ppgan/modules/dense_motion.py
+++ b/ppgan/modules/dense_motion.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F
diff --git a/ppgan/modules/first_order.py b/ppgan/modules/first_order.py
index 3e84d8a4669078f8a6cb0bffdb93fbd79df254ac..d38f38a2d3f261c9eff9dcb2813778b4671d7705 100644
--- a/ppgan/modules/first_order.py
+++ b/ppgan/modules/first_order.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F
diff --git a/ppgan/modules/init.py b/ppgan/modules/init.py
index 4e0a078ac771a2144da14874519ce1d6b3db3885..f781edd309002906d38838df30936b25dd74334e 100644
--- a/ppgan/modules/init.py
+++ b/ppgan/modules/init.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import math
 import numpy as np
 
@@ -256,8 +270,10 @@ def kaiming_init(layer,
                  distribution='normal'):
     assert distribution in ['uniform', 'normal']
     if distribution == 'uniform':
-        kaiming_uniform_(
-            layer.weight, a=a, mode=mode, nonlinearity=nonlinearity)
+        kaiming_uniform_(layer.weight,
+                         a=a,
+                         mode=mode,
+                         nonlinearity=nonlinearity)
     else:
         kaiming_normal_(layer.weight, a=a, mode=mode, nonlinearity=nonlinearity)
     if hasattr(layer, 'bias') and layer.bias is not None:
@@ -273,7 +289,6 @@ def init_weights(net, init_type='normal', init_gain=0.02):
     We use 'normal' in the original pix2pix and CycleGAN paper. But xavier and kaiming might
     work better for some applications. Feel free to try yourself.
     """
-
     def init_func(m):  # define the initialization function
         classname = m.__class__.__name__
         if hasattr(m, 'weight') and (classname.find('Conv') != -1
diff --git a/ppgan/modules/keypoint_detector.py b/ppgan/modules/keypoint_detector.py
index 54d6ff1452ba1a1d5914aea6e4e1aea7f5b0f21c..9d5a7688910992d4c05343a50413d248b7b78d53 100644
--- a/ppgan/modules/keypoint_detector.py
+++ b/ppgan/modules/keypoint_detector.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F
diff --git a/ppgan/modules/nn.py b/ppgan/modules/nn.py
index 65ba6ed9203d4fd7f39c8256dc6d11d1b4552c3b..f96e92cce68af2ddcd7efc02a7fac9767d2f3dfe 100644
--- a/ppgan/modules/nn.py
+++ b/ppgan/modules/nn.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/modules/norm.py b/ppgan/modules/norm.py
index 656bc77460211a6463ed1e69807409769a139009..2cc3e994f986330ccec65f2f576207f0ce5c48a4 100644
--- a/ppgan/modules/norm.py
+++ b/ppgan/modules/norm.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 import functools
 import paddle.nn as nn
diff --git a/ppgan/solver/__init__.py b/ppgan/solver/__init__.py
index e9d32d99fe84dabfa4f70c373a98a3f1c85b0803..57021870b340283a36eb3238bb42da598c3181e9 100644
--- a/ppgan/solver/__init__.py
+++ b/ppgan/solver/__init__.py
@@ -1 +1,15 @@
-from .optimizer import build_optimizer
\ No newline at end of file
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .optimizer import build_optimizer
diff --git a/ppgan/solver/lr_scheduler.py b/ppgan/solver/lr_scheduler.py
index 39b6389ebd3ea09186ee1d04e497a8bc27a3165b..e21943dfab43d66b8cd63c388cea2d8e8a553cd8 100644
--- a/ppgan/solver/lr_scheduler.py
+++ b/ppgan/solver/lr_scheduler.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import paddle
 
 
diff --git a/ppgan/solver/optimizer.py b/ppgan/solver/optimizer.py
index 810cada4020f299f8611d2ddc7eb1d38c4bf7b50..389b0eb981a4400ff399d3756912a15d80ccb5fd 100644
--- a/ppgan/solver/optimizer.py
+++ b/ppgan/solver/optimizer.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import copy
 import paddle
 
diff --git a/ppgan/utils/animate.py b/ppgan/utils/animate.py
index df3a0e71caab05f86cd6a6fa113c43f9b3308a34..414120a044f642529efb49db8ef198f576d8efcf 100644
--- a/ppgan/utils/animate.py
+++ b/ppgan/utils/animate.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 from scipy.spatial import ConvexHull
 
diff --git a/ppgan/utils/config.py b/ppgan/utils/config.py
index 577280f96d1e72aff041b1771ca3c10df4c29af8..1c0e3e8ebb0d63e3e6e648c67a80e58c3121540b 100644
--- a/ppgan/utils/config.py
+++ b/ppgan/utils/config.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,7 +14,6 @@
 import os
 import yaml
 
-
 __all__ = ['get_config']
 
 
@@ -65,7 +64,6 @@ def override(dl, ks, v):
         ks(list): list of keys
         v(str): value to be replaced
     """
-
     def str2num(v):
         try:
             return eval(v)
@@ -104,8 +102,8 @@ def override_config(config, options=None):
     """
     if options is not None:
         for opt in options:
-            assert isinstance(opt, str), (
-                "option({}) should be a str".format(opt))
+            assert isinstance(opt,
+                              str), ("option({}) should be a str".format(opt))
             assert "=" in opt, (
                 "option({}) should contain a ="
                 "to distinguish between key and value".format(opt))
@@ -122,9 +120,8 @@ def get_config(fname, overrides=None, show=True):
     """
     Read config from file
     """
-    assert os.path.exists(fname), (
-        'config file({}) is not exist'.format(fname))
+    assert os.path.exists(fname), ('config file({}) is not exist'.format(fname))
     config = parse_config(fname)
     override_config(config, overrides)
 
-    return config
\ No newline at end of file
+    return config
diff --git a/ppgan/utils/filesystem.py b/ppgan/utils/filesystem.py
index 98495b23f6bf1f12b4c464d87f3438f695b6ae04..43774dcc8c83d13cc2491c1064387f78a2880848 100644
--- a/ppgan/utils/filesystem.py
+++ b/ppgan/utils/filesystem.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import os
 import six
 import pickle
diff --git a/ppgan/utils/image_pool.py b/ppgan/utils/image_pool.py
index 0ab24c046667dd25c66c4c5070cddabb1c73f638..cd12f62f823e0bf3e2fcc17d9579817260f73271 100644
--- a/ppgan/utils/image_pool.py
+++ b/ppgan/utils/image_pool.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import random
 import paddle
 
@@ -8,7 +22,6 @@ class ImagePool():
     This buffer enables us to update discriminators using a history of generated images
     rather than the ones produced by the latest generators.
     """
-
     def __init__(self, pool_size):
         """Initialize the ImagePool class
 
@@ -37,20 +50,22 @@ class ImagePool():
         return_images = []
         for image in images:
             image = paddle.unsqueeze(image, 0)
-            if self.num_imgs < self.pool_size:   # if the buffer is not full; keep inserting current images to the buffer
+            if self.num_imgs < self.pool_size:  # if the buffer is not full; keep inserting current images to the buffer
                 self.num_imgs = self.num_imgs + 1
                 self.images.append(image)
                 return_images.append(image)
             else:
                 p = random.uniform(0, 1)
                 if p > 0.5:  # by 50% chance, the buffer will return a previously stored image, and insert the current image into the buffer
-                    random_id = random.randint(0, self.pool_size - 1)  # randint is inclusive
+                    random_id = random.randint(0, self.pool_size -
+                                               1)  # randint is inclusive
                     # FIXME: clone
                     # tmp = (self.images[random_id]).detach() #.clone()
-                    tmp = self.images[random_id] #.clone()
+                    tmp = self.images[random_id]  #.clone()
                     self.images[random_id] = image
                     return_images.append(tmp)
-                else:       # by another 50% chance, the buffer will return the current image
+                else:  # by another 50% chance, the buffer will return the current image
                     return_images.append(image)
-        return_images = paddle.concat(return_images, 0)   # collect all the images and return
+        return_images = paddle.concat(return_images,
+                                      0)  # collect all the images and return
         return return_images
diff --git a/ppgan/utils/logger.py b/ppgan/utils/logger.py
index 58d94f69e6a11be9dee35fbb16afbc298ae7e359..fed2acbac7f64137cd31a1b46a6f97a1b1f12599 100644
--- a/ppgan/utils/logger.py
+++ b/ppgan/utils/logger.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import logging
 import os
 import sys
diff --git a/ppgan/utils/options.py b/ppgan/utils/options.py
index dd953359c177b5fcd30b9ef0074d068715bb0796..cac42dadb8c566e76b12dab72cb837d1c4d5d4e6 100644
--- a/ppgan/utils/options.py
+++ b/ppgan/utils/options.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/utils/preprocess.py b/ppgan/utils/preprocess.py
index a634cc66528b301832cb41d3127e0aad363ea433..79cd966b12bf40398ac6b92f723449b7925c1bb7 100644
--- a/ppgan/utils/preprocess.py
+++ b/ppgan/utils/preprocess.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/utils/registry.py b/ppgan/utils/registry.py
index a6d2cc810dd3fa51f5a8f3eda5b07a55d95c26e9..d8cd1cecb56dd6b642d13965dc909c21ef1236ff 100644
--- a/ppgan/utils/registry.py
+++ b/ppgan/utils/registry.py
@@ -1,3 +1,18 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
 class Registry(object):
     """
     The registry that provides name -> object mapping, to support third-party users' custom modules.
@@ -13,7 +28,6 @@ class Registry(object):
     .. code-block:: python
         BACKBONE_REGISTRY.register(MyBackbone)
     """
-
     def __init__(self, name):
         """
         Args:
@@ -26,7 +40,8 @@ class Registry(object):
     def _do_register(self, name, obj):
         assert (
             name not in self._obj_map
-        ), "An object named '{}' was already registered in '{}' registry!".format(name, self._name)
+        ), "An object named '{}' was already registered in '{}' registry!".format(
+            name, self._name)
         self._obj_map[name] = obj
 
     def register(self, obj=None, name=None):
@@ -52,6 +67,8 @@ class Registry(object):
     def get(self, name):
         ret = self._obj_map.get(name)
         if ret is None:
-            raise KeyError("No object named '{}' found in '{}' registry!".format(name, self._name))
+            raise KeyError(
+                "No object named '{}' found in '{}' registry!".format(
+                    name, self._name))
 
-        return ret
\ No newline at end of file
+        return ret
diff --git a/ppgan/utils/setup.py b/ppgan/utils/setup.py
index 4c9d8b887e8290c4d0e4387886efc5bacff1b9dd..588260e2def485b5bdc1aaa2ab2b115ca8fad68d 100644
--- a/ppgan/utils/setup.py
+++ b/ppgan/utils/setup.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import os
 import time
 import paddle
diff --git a/ppgan/utils/timer.py b/ppgan/utils/timer.py
index 838dc752aab5edbdbc7948456c0bb6a102d12952..fbe24015afacaf689d69e1d174aa7de17b8ec695 100644
--- a/ppgan/utils/timer.py
+++ b/ppgan/utils/timer.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ppgan/utils/video.py b/ppgan/utils/video.py
index 056e547e13bfc187b679293d0ec9bc406100e6ef..da8a8b7aacefa40a0942731b67a5c126eb0b447f 100644
--- a/ppgan/utils/video.py
+++ b/ppgan/utils/video.py
@@ -1,6 +1,21 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import os
 import sys
 
+
 def video2frames(video_path, outpath, **kargs):
     def _dict2str(kargs):
         cmd_str = ''
@@ -41,4 +56,4 @@ def frames2video(frame_path, video_path, r):
     if os.system(cmd) != 0:
         raise RuntimeError('ffmpeg process video: {} error'.format(video_path))
 
-    sys.stdout.flush()
\ No newline at end of file
+    sys.stdout.flush()
diff --git a/ppgan/utils/visual.py b/ppgan/utils/visual.py
index f6c46e2793ce19fca3aff5ef8535f4d89e851cd2..78cb0ad8ca4de2759d9983c263fa96192f12e99e 100644
--- a/ppgan/utils/visual.py
+++ b/ppgan/utils/visual.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import numpy as np
 from PIL import Image
 
@@ -17,7 +31,9 @@ def tensor2img(input_image, min_max=(-1., 1.), imtype=np.uint8):
             image_numpy = np.tile(image_numpy, (3, 1, 1))
         image_numpy = image_numpy.clip(min_max[0], min_max[1])
         image_numpy = (image_numpy - min_max[0]) / (min_max[1] - min_max[0])
-        image_numpy = (np.transpose(image_numpy, (1, 2, 0))) * 255.0  # post-processing: tranpose and scaling
+        image_numpy = (np.transpose(
+            image_numpy,
+            (1, 2, 0))) * 255.0  # post-processing: tranpose and scaling
     else:  # if it is a numpy array, do nothing
         image_numpy = input_image
     return image_numpy.astype(imtype)
diff --git a/setup.py b/setup.py
index 3d5adfc0d90f98274934ffe58c355ce8bb9f082d..004f9fa098a2fbdce7bb54d751dfe7d8a3ed3e9f 100644
--- a/setup.py
+++ b/setup.py
@@ -36,9 +36,7 @@ setup(
     description='Awesome GAN toolkits based on PaddlePaddle',
     url='https://github.com/PaddlePaddle/PaddleGAN',
     download_url='https://github.com/PaddlePaddle/PaddleGAN.git',
-    keywords=[
-        'gan paddlegan'
-    ],
+    keywords=['gan paddlegan'],
     classifiers=[
         'Intended Audience :: Developers', 'Operating System :: OS Independent',
         'Natural Language :: Chinese (Simplified)',
@@ -46,4 +44,5 @@ setup(
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7', 'Topic :: Utilities'
-    ], )
\ No newline at end of file
+    ],
+)
diff --git a/tools/main.py b/tools/main.py
index e1dac1f53a548135113bf48572324b7d7958982d..68edba4d128bae0d995a6b66d384da6a53e8c457 100644
--- a/tools/main.py
+++ b/tools/main.py
@@ -1,4 +1,4 @@
-# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.