fix ch comment to support py2 and some other typo

doc/doc_ch/recognition.md

@@ -10,7 +10,7 @@ PaddleOCR 支持两种数据格式: `lmdb` 用于训练公开数据，调试算
 训练数据的默认存储路径是 `PaddleOCR/train_data`,如果您的磁盘上已有数据集，只需创建软链接至数据集目录：
 
 ```
-ln -sf <path/to/dataset> <path/to/paddle_detection>/train_data/dataset
+ln -sf <path/to/dataset> <path/to/paddle_ocr>/train_data/dataset
 ```
 
 

doc/doc_en/recognition_en.md

@@ -10,7 +10,7 @@ Please organize the dataset as follows:
 The default storage path for training data is `PaddleOCR/train_data`, if you already have a dataset on your disk, just create a soft link to the dataset directory:
 
 ```
-ln -sf <path/to/dataset> <path/to/paddle_detection>/train_data/dataset
+ln -sf <path/to/dataset> <path/to/paddle_ocr>/train_data/dataset
 ```
 
 

ppocr/modeling/architectures/__init__.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.

ppocr/modeling/backbones/__init__.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.

ppocr/modeling/heads/__init__.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.

ppocr/modeling/losses/__init__.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.

ppocr/modeling/stns/__init__.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.

tools/eval_utils/eval_det_utils.py

@@ -65,6 +65,7 @@ def cal_det_res(exe, config, eval_info_dict):
                 err = "concatenate error usually caused by different input image shapes in evaluation or testing.\n \
                 Please set \"test_batch_size_per_card\" in main yml as 1\n \
                 or add \"test_image_shape: [h, w]\" in reader yml for EvalReader."
+
                 raise Exception(err)
             outs = exe.run(eval_info_dict['program'], \
                            feed={'image': img_list}, \
@@ -113,7 +114,7 @@ def cal_det_metrics(gt_label_path, save_res_path):
         gt_label_path(string): The groundtruth detection label file path
         save_res_path(string): The saved predicted detection label path
     return:
-        claculated metrics including Hmean、precision and recall
+        claculated metrics including Hmean, precision and recall
     """
     evaluator = DetectionIoUEvaluator()
     gt_label_infor = load_label_infor(gt_label_path, do_ignore=True)

tools/eval_utils/eval_rec_utils.py

@@ -83,7 +83,7 @@ def eval_rec_run(exe, config, eval_info_dict, mode):
 
 
 def test_rec_benchmark(exe, config, eval_info_dict):
-    " 评估lmdb 数据"
+    " Evaluate lmdb dataset "
     eval_data_list = ['IIIT5k_3000', 'SVT', 'IC03_860', 'IC03_867', \
                       'IC13_857', 'IC13_1015', 'IC15_1811', 'IC15_2077', 'SVTP', 'CUTE80']
     eval_data_dir = config['TestReader']['lmdb_sets_dir']