fix code style

core/engine/cluster/cloud/__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.

core/modules/coding/layers.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.

core/trainers/__init__.py

@@ -11,7 +11,6 @@
 # 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.
-
 """
 trainer implement.
 
@@ -22,5 +21,3 @@ Trainer
                                ↘  (for online learning training) OnlineLearningTrainer
 
 """
-
-

core/trainers/ctr_coding_trainer.py

@@ -59,8 +59,10 @@ class CtrTrainer(Trainer):
         reader_class = envs.get_global_env("class", None, namespace)
         abs_dir = os.path.dirname(os.path.abspath(__file__))
         reader = os.path.join(abs_dir, '../utils', 'dataset_instance.py')
-        pipe_cmd = "python {} {} {} {}".format(reader, reader_class, "TRAIN", self._config_yaml)
-        train_data_path = envs.get_global_env("train_data_path", None, namespace)
+        pipe_cmd = "python {} {} {} {}".format(reader, reader_class, "TRAIN",
+                                               self._config_yaml)
+        train_data_path = envs.get_global_env("train_data_path", None,
+                                              namespace)
 
         dataset = fluid.DatasetFactory().create_dataset()
         dataset.set_use_var(inputs)
@@ -87,7 +89,8 @@ class CtrTrainer(Trainer):
         self.model.train_net()
         optimizer = self.model.optimizer()
 
-        optimizer = fleet.distributed_optimizer(optimizer, strategy={"use_cvm": False})
+        optimizer = fleet.distributed_optimizer(
+            optimizer, strategy={"use_cvm": False})
         optimizer.minimize(self.model.get_avg_cost())
 
         if fleet.is_server():
@@ -118,16 +121,18 @@ class CtrTrainer(Trainer):
         gs = shuf * 0
         fleet._role_maker._node_type_comm.Allreduce(shuf, gs)
 
-        print("trainer id: {}, trainers: {}, gs: {}".format(fleet.worker_index(), fleet.worker_num(), gs))
+        print("trainer id: {}, trainers: {}, gs: {}".format(fleet.worker_index(
+        ), fleet.worker_num(), gs))
 
         epochs = envs.get_global_env("train.epochs")
 
         for i in range(epochs):
-            self._exe.train_from_dataset(program=fluid.default_main_program(),
-                                         dataset=dataset,
-                                         fetch_list=self.fetch_vars,
-                                         fetch_info=self.fetch_alias,
-                                         print_period=self.fetch_period)
+            self._exe.train_from_dataset(
+                program=fluid.default_main_program(),
+                dataset=dataset,
+                fetch_list=self.fetch_vars,
+                fetch_info=self.fetch_alias,
+                print_period=self.fetch_period)
 
         context['status'] = 'terminal_pass'
         fleet.stop_worker()

doc/benchmark.md

 # PaddleRec Benchmark
-> 占位
\ No newline at end of file
+> 占位

doc/contribute.md

 # PaddleRec 贡献代码
-> 占位
\ No newline at end of file
+> 占位

doc/design.md

@@ -279,4 +279,4 @@ class Metric(object):
         pass
 ```
 
-全局指标的计算及输出，需要分别继承并实现以上四个成员函数。具体实现的例子，可以参考[auc_metric.py](../core/metrics/auc_metrics.py)
\ No newline at end of file
+全局指标的计算及输出，需要分别继承并实现以上四个成员函数。具体实现的例子，可以参考[auc_metric.py](../core/metrics/auc_metrics.py)

doc/distributed_train.md

@@ -7,5 +7,3 @@
 
 ### K8S集群运行分布式
 > 占位
-
-

doc/faq.md

 # 常见问题FAQ
-> 占位
\ No newline at end of file
+> 占位

doc/local_train.md

 # PaddleRec 单机训练
-> 占位
\ No newline at end of file
+> 占位

doc/model_list.md

@@ -12,4 +12,3 @@
 |  多任务  |        [ESMM]()        |      ✓      |      x      |       ✓       |     x      |       ✓       |      ✓       |
 |   匹配   |        [DSSM]()        |      ✓      |      x      |       ✓       |     x      |       ✓       |      ✓       |
 |   匹配   |  [Multiview-Simnet]()  |      ✓      |      x      |       ✓       |     x      |       ✓       |      ✓       |
-

doc/optimization_model.md

 # PaddleRec 模型调参
-> 占位
\ No newline at end of file
+> 占位

doc/predict.md

-# PaddleRec 离线预测
\ No newline at end of file
+# PaddleRec 离线预测

doc/ps_background.md

@@ -5,4 +5,3 @@
 
 
 ## [参数服务器训练](https://www.paddlepaddle.org.cn/tutorials/projectdetail/464839)
-

models/contentunderstanding/__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.

models/contentunderstanding/classification/config.yaml

@@ -37,4 +37,3 @@ train:
       dirname: "inference"
       epoch_interval: 100
       save_last: True
-

models/contentunderstanding/classification/model.py

@@ -31,7 +31,8 @@ class Model(ModelBase):
     def train_net(self):
         """ network definition """
 
-        data = fluid.data(name="input", shape=[None, self.max_len], dtype='int64')
+        data = fluid.data(
+            name="input", shape=[None, self.max_len], dtype='int64')
         label = fluid.data(name="label", shape=[None, 1], dtype='int64')
         seq_len = fluid.data(name="seq_len", shape=[None], dtype='int64')
 
@@ -51,7 +52,9 @@ class Model(ModelBase):
         # full connect layer
         fc_1 = fluid.layers.fc(input=[conv], size=self.hid_dim)
         # softmax layer
-        prediction = fluid.layers.fc(input=[fc_1], size=self.class_dim, act="softmax")
+        prediction = fluid.layers.fc(input=[fc_1],
+                                     size=self.class_dim,
+                                     act="softmax")
         cost = fluid.layers.cross_entropy(input=prediction, label=label)
         avg_cost = fluid.layers.mean(x=cost)
         acc = fluid.layers.accuracy(input=prediction, label=label)

models/contentunderstanding/classification/reader.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
 import sys
 
 from paddlerec.core.reader import Reader
@@ -38,7 +37,8 @@ class TrainReader(Reader):
             data = [int(i) for i in data]
             label = [int(i) for i in label]
             seq_len = [int(i) for i in seq_len]
-            print >> sys.stderr, str([('data', data), ('label', label), ('seq_len', seq_len)])
+            print >> sys.stderr, str(
+                [('data', data), ('label', label), ('seq_len', seq_len)])
             yield [('data', data), ('label', label), ('seq_len', seq_len)]
 
         return data_iter

models/contentunderstanding/readme.md

@@ -87,4 +87,3 @@ python -m paddlerec.run -m paddlerec.models.contentunderstanding.classification
 | :------------------: | :--------------------: | :---------: |:---------: | :---------: |:---------: |
 |       ag news dataset        |       TagSpace       |       --        |       --          |       --          |       --          |
 |       --        |       Classification       |       --        |       --          |       --          |       --          |
-

models/contentunderstanding/tagspace/config.yaml

@@ -47,4 +47,3 @@ train:
       dirname: "inference"
       epoch_interval: 100
       save_last: True
-

models/match/__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.

models/match/readme.md

@@ -37,4 +37,3 @@
 python -m paddlerec.run -m paddlerec.models.match.dssm # dssm
 python -m paddlerec.run -m paddlerec.models.match.multiview-simnet # multiview-simnet
 ```
-

models/multitask/__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.

models/multitask/readme.md

@@ -56,4 +56,3 @@ python -m paddlerec.run -m paddlerec.models.multitask.esmm # esmm
 |       Census-income Data     |       Share-Bottom       |       --        |     0.93120/0.99256         |
 |       Census-income Data        |       MMoE       |       --        |       0.94465/0.99324         |
 |          Ali-CCP     |    ESMM       |       --        |      0.97181/0.49967          |
-

models/rank/__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.

models/rank/dcn/data/download.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.
+
 import os
 import sys
 import io

models/rank/dcn/data/get_slot_data.py

@@ -26,8 +26,8 @@ from collections import Counter
 import os
 import paddle.fluid.incubate.data_generator as dg
 
-class TrainReader(dg.MultiSlotDataGenerator):
 
+class TrainReader(dg.MultiSlotDataGenerator):
     def __init__(self, config):
         dg.MultiSlotDataGenerator.__init__(self)
 
@@ -83,11 +83,11 @@ class TrainReader(dg.MultiSlotDataGenerator):
                     if idx == 2 else math.log(1 + float(features[idx])))
         for idx in self.cat_idx_:
             if features[idx] == '' or features[
-                idx] not in self.cat_feat_idx_dict_list[idx - 14]:
+                    idx] not in self.cat_feat_idx_dict_list[idx - 14]:
                 label_feat_list[idx].append(0)
             else:
                 label_feat_list[idx].append(self.cat_feat_idx_dict_list[
-                                                idx - 14][features[idx]])
+                    idx - 14][features[idx]])
         label_feat_list[0].append(int(features[0]))
         return label_feat_list
 
@@ -109,6 +109,7 @@ class TrainReader(dg.MultiSlotDataGenerator):
 
         return data_iter
 
+
 reader = TrainReader("../config.yaml")
 reader.init()
 reader.run_from_stdin()

models/rank/dcn/data/preprocess.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.
+
 from __future__ import print_function, absolute_import, division
 
 import os

models/rank/deepfm/data/download_preprocess.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.
+
 import os
 import shutil
 import sys

models/rank/deepfm/data/get_slot_data.py

@@ -19,8 +19,9 @@ try:
     import cPickle as pickle
 except ImportError:
     import pickle
-class TrainReader(dg.MultiSlotDataGenerator):
 
+
+class TrainReader(dg.MultiSlotDataGenerator):
     def __init__(self, config):
         dg.MultiSlotDataGenerator.__init__(self)
 
@@ -44,7 +45,7 @@ class TrainReader(dg.MultiSlotDataGenerator):
         self.categorical_range_ = range(14, 40)
         # load preprocessed feature dict 
         self.feat_dict_name = "aid_data/feat_dict_10.pkl2"
-        self.feat_dict_ = pickle.load(open(self.feat_dict_name, 'rb')) 
+        self.feat_dict_ = pickle.load(open(self.feat_dict_name, 'rb'))
 
     def _process_line(self, line):
         features = line.rstrip('\n').split('\t')
@@ -77,15 +78,18 @@ class TrainReader(dg.MultiSlotDataGenerator):
         def data_iter():
             feat_idx, feat_value, label = self._process_line(line)
             s = ""
-            for i in [('feat_idx', feat_idx), ('feat_value', feat_value), ('label', label)]:
+            for i in [('feat_idx', feat_idx), ('feat_value', feat_value),
+                      ('label', label)]:
                 k = i[0]
                 v = i[1]
                 for j in v:
                     s += " " + k + ":" + str(j)
             print s.strip()
             yield None
+
         return data_iter
 
+
 reader = TrainReader("../config.yaml")
 reader.init()
 reader.run_from_stdin()

models/rank/deepfm/data/preprocess.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.
+
 import os
 import numpy
 from collections import Counter

models/rank/din/data/build_dataset.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.
+
 from __future__ import print_function
 import random
 import pickle

models/rank/din/data/convert_pd.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.
+
 from __future__ import print_function
 import pickle
 import pandas as pd

models/rank/din/data/remap_id.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.
+
 from __future__ import print_function
 import random
 import pickle

models/rank/dnn/data/get_slot_data.py

@@ -32,6 +32,7 @@ class CriteoDataset(dg.MultiSlotDataGenerator):
         """
         Read the data line by line and process it as a dictionary
         """
+
         def reader():
             """
             This function needs to be implemented by the user, based on data format
@@ -57,11 +58,12 @@ class CriteoDataset(dg.MultiSlotDataGenerator):
             feature_name.append("label")
             s = "click:" + str(label[0])
             for i in dense_feature:
-                s += " dense_feature:" + str(i) 
+                s += " dense_feature:" + str(i)
             for i in range(1, 1 + len(categorical_range_)):
-                s += " " + str(i) + ":" + str(sparse_feature[i-1][0])
+                s += " " + str(i) + ":" + str(sparse_feature[i - 1][0])
             print s.strip()
             yield None
+
         return reader
 
 

models/rank/wide_deep/data/data_preparation.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.
+
 import os
 import io
 import args
 import pandas as pd
-from sklearn import  preprocessing
+from sklearn import preprocessing
+
 
-def _clean_file(source_path,target_path):
+def _clean_file(source_path, target_path):
     """makes changes to match the CSV format."""
     with io.open(source_path, 'r') as temp_eval_file:
         with io.open(target_path, 'w') as eval_file:
@@ -17,15 +32,16 @@ def _clean_file(source_path,target_path):
                     line = line[:-1]
                 line += '\n'
                 eval_file.write(line)
-                    
+
+
 def build_model_columns(train_data_path, test_data_path):
     # The column names are from
     # https://www2.1010data.com/documentationcenter/prod/Tutorials/MachineLearningExamples/CensusIncomeDataSet.html
     column_names = [
-    'age', 'workclass', 'fnlwgt', 'education', 'education_num',
-    'marital_status', 'occupation', 'relationship', 'race', 'gender',
-    'capital_gain', 'capital_loss', 'hours_per_week', 'native_country',
-    'income_bracket'
+        'age', 'workclass', 'fnlwgt', 'education', 'education_num',
+        'marital_status', 'occupation', 'relationship', 'race', 'gender',
+        'capital_gain', 'capital_loss', 'hours_per_week', 'native_country',
+        'income_bracket'
     ]
 
     # Load the dataset in Pandas
@@ -44,61 +60,92 @@ def build_model_columns(train_data_path, test_data_path):
 
     # First group of tasks according to the paper
     #label_columns = ['income_50k', 'marital_stat']
-    categorical_columns = ['education','marital_status','relationship','workclass','occupation']
+    categorical_columns = [
+        'education', 'marital_status', 'relationship', 'workclass',
+        'occupation'
+    ]
     for col in categorical_columns:
         label_train = preprocessing.LabelEncoder()
-        train_df[col]= label_train.fit_transform(train_df[col])
+        train_df[col] = label_train.fit_transform(train_df[col])
         label_test = preprocessing.LabelEncoder()
-        test_df[col]= label_test.fit_transform(test_df[col])
-    
-    bins = [18, 25, 30, 35, 40, 45, 50, 55, 60, 65]  
-    train_df['age_buckets'] = pd.cut(train_df['age'].values.tolist(), bins,labels=False)
-    test_df['age_buckets'] = pd.cut(test_df['age'].values.tolist(), bins,labels=False)
-    
-    base_columns = ['education', 'marital_status', 'relationship', 'workclass', 'occupation', 'age_buckets']
-    
-    train_df['education_occupation'] = train_df['education'].astype(str) + '_' + train_df['occupation'].astype(str)    
-    test_df['education_occupation'] = test_df['education'].astype(str) + '_' + test_df['occupation'].astype(str)
-    train_df['age_buckets_education_occupation'] = train_df['age_buckets'].astype(str) + '_' + train_df['education'].astype(str) + '_' + train_df['occupation'].astype(str)
-    test_df['age_buckets_education_occupation'] = test_df['age_buckets'].astype(str) + '_' + test_df['education'].astype(str) + '_' + test_df['occupation'].astype(str)
-    crossed_columns = ['education_occupation','age_buckets_education_occupation']
-    
+        test_df[col] = label_test.fit_transform(test_df[col])
+
+    bins = [18, 25, 30, 35, 40, 45, 50, 55, 60, 65]
+    train_df['age_buckets'] = pd.cut(train_df['age'].values.tolist(),
+                                     bins,
+                                     labels=False)
+    test_df['age_buckets'] = pd.cut(test_df['age'].values.tolist(),
+                                    bins,
+                                    labels=False)
+
+    base_columns = [
+        'education', 'marital_status', 'relationship', 'workclass',
+        'occupation', 'age_buckets'
+    ]
+
+    train_df['education_occupation'] = train_df['education'].astype(
+        str) + '_' + train_df['occupation'].astype(str)
+    test_df['education_occupation'] = test_df['education'].astype(
+        str) + '_' + test_df['occupation'].astype(str)
+    train_df['age_buckets_education_occupation'] = train_df[
+        'age_buckets'].astype(str) + '_' + train_df['education'].astype(
+            str) + '_' + train_df['occupation'].astype(str)
+    test_df['age_buckets_education_occupation'] = test_df[
+        'age_buckets'].astype(str) + '_' + test_df['education'].astype(
+            str) + '_' + test_df['occupation'].astype(str)
+    crossed_columns = [
+        'education_occupation', 'age_buckets_education_occupation'
+    ]
+
     for col in crossed_columns:
         label_train = preprocessing.LabelEncoder()
-        train_df[col]= label_train.fit_transform(train_df[col])
+        train_df[col] = label_train.fit_transform(train_df[col])
         label_test = preprocessing.LabelEncoder()
-        test_df[col]= label_test.fit_transform(test_df[col])
-        
+        test_df[col] = label_test.fit_transform(test_df[col])
+
     wide_columns = base_columns + crossed_columns
-    
-    train_df_temp = pd.get_dummies(train_df[categorical_columns],columns=categorical_columns)
-    test_df_temp = pd.get_dummies(test_df[categorical_columns], columns=categorical_columns)
+
+    train_df_temp = pd.get_dummies(
+        train_df[categorical_columns], columns=categorical_columns)
+    test_df_temp = pd.get_dummies(
+        test_df[categorical_columns], columns=categorical_columns)
     train_df = train_df.join(train_df_temp)
     test_df = test_df.join(test_df_temp)
-    
-    deep_columns = list(train_df_temp.columns)+ ['age','education_num','capital_gain','capital_loss','hours_per_week']
-    
-    train_df['label'] = train_df['income_bracket'].apply(lambda x : 1 if x == '>50K' else 0)
-    test_df['label'] = test_df['income_bracket'].apply(lambda x : 1 if x == '>50K' else 0)
-    
-    with io.open('train_data/columns.txt','w') as f:
-        write_str = str(len(wide_columns)) + '\n' + str(len(deep_columns)) + '\n'
+
+    deep_columns = list(train_df_temp.columns) + [
+        'age', 'education_num', 'capital_gain', 'capital_loss',
+        'hours_per_week'
+    ]
+
+    train_df['label'] = train_df['income_bracket'].apply(
+        lambda x: 1 if x == '>50K' else 0)
+    test_df['label'] = test_df['income_bracket'].apply(
+        lambda x: 1 if x == '>50K' else 0)
+
+    with io.open('train_data/columns.txt', 'w') as f:
+        write_str = str(len(wide_columns)) + '\n' + str(len(
+            deep_columns)) + '\n'
         f.write(write_str)
         f.close()
-    with io.open('test_data/columns.txt','w') as f:
-        write_str = str(len(wide_columns)) + '\n' + str(len(deep_columns)) + '\n'
+    with io.open('test_data/columns.txt', 'w') as f:
+        write_str = str(len(wide_columns)) + '\n' + str(len(
+            deep_columns)) + '\n'
         f.write(write_str)
         f.close()
-    
-    train_df[wide_columns + deep_columns + ['label']].fillna(0).to_csv(train_data_path,index=False)
-    test_df[wide_columns + deep_columns + ['label']].fillna(0).to_csv(test_data_path,index=False)
+
+    train_df[wide_columns + deep_columns + ['label']].fillna(0).to_csv(
+        train_data_path, index=False)
+    test_df[wide_columns + deep_columns + ['label']].fillna(0).to_csv(
+        test_data_path, index=False)
 
 
 def clean_file(train_path, test_path, train_data_path, test_data_path):
     _clean_file(train_path, train_data_path)
     _clean_file(test_path, test_data_path)
 
+
 if __name__ == '__main__':
     args = args.parse_args()
-    clean_file(args.train_path, args.test_path, args.train_data_path, args.test_data_path)  
+    clean_file(args.train_path, args.test_path, args.train_data_path,
+               args.test_data_path)
     build_model_columns(args.train_data_path, args.test_data_path)

models/rank/wide_deep/data/get_slot_data.py

@@ -20,6 +20,7 @@ except ImportError:
     import pickle
 import paddle.fluid.incubate.data_generator as dg
 
+
 class TrainReader(dg.MultiSlotDataGenerator):
     def __init__(self, config):
         dg.MultiSlotDataGenerator.__init__(self)
@@ -50,7 +51,8 @@ class TrainReader(dg.MultiSlotDataGenerator):
             wide_feat, deep_deat, label = self._process_line(line)
 
             s = ""
-            for i in [('wide_input', wide_feat), ('deep_input', deep_deat), ('label', label)]:
+            for i in [('wide_input', wide_feat), ('deep_input', deep_deat),
+                      ('label', label)]:
                 k = i[0]
                 v = i[1]
                 for j in v:
@@ -60,6 +62,7 @@ class TrainReader(dg.MultiSlotDataGenerator):
 
         return data_iter
 
+
 reader = TrainReader("../config.yaml")
 reader.init()
 reader.run_from_stdin()

models/rank/xdeepfm/data/download.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.
+
 import os
 import shutil
 import sys

models/rank/xdeepfm/data/get_slot_data.py

@@ -21,6 +21,7 @@ except ImportError:
     import pickle
 import paddle.fluid.incubate.data_generator as dg
 
+
 class TrainReader(dg.MultiSlotDataGenerator):
     def __init__(self, config):
         dg.MultiSlotDataGenerator.__init__(self)
@@ -48,7 +49,8 @@ class TrainReader(dg.MultiSlotDataGenerator):
             feat_idx, feat_value, label = self._process_line(line)
 
             s = ""
-            for i in [('feat_idx', feat_idx), ('feat_value', feat_value), ('label', label)]:
+            for i in [('feat_idx', feat_idx), ('feat_value', feat_value),
+                      ('label', label)]:
                 k = i[0]
                 v = i[1]
                 for j in v:
@@ -58,6 +60,7 @@ class TrainReader(dg.MultiSlotDataGenerator):
 
         return data_iter
 
+
 reader = TrainReader("../config.yaml")
 reader.init()
 reader.run_from_stdin()

models/recall/gnn/data_process.sh

@@ -31,5 +31,3 @@ mv diginetica/train.txt train_data
 
 mkdir test_data
 mv diginetica/test.txt test_data
-
-

models/recall/gnn/raw_data/convert_data.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.
+
 import argparse
 import time
 import pickle
@@ -10,6 +24,7 @@ parser.add_argument(
     help='dataset dir: diginetica/yoochoose1_4/yoochoose1_64/sample')
 opt = parser.parse_args()
 
+
 def process_data(file_type):
     path = os.path.join(opt.data_dir, file_type)
     output_path = os.path.splitext(path)[0] + ".txt"
@@ -23,6 +38,7 @@ def process_data(file_type):
             fout.write(str(data[i][1]))
             fout.write("\n")
 
+
 process_data("train")
 process_data("test")
 

models/recall/gnn/raw_data/download.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.
+
 import requests
 import sys
 import time

models/recall/readme.md

@@ -78,4 +78,3 @@ python -m paddlerec.run -m paddlerec.models.recall.youtube_dnn # youtube_dnn
 |       MOVIELENS        |       NCF       |       0.688        |       --          |
 |       --        |       Youtube       |       --        |       --          |
 |       1 Billion Word Language Model Benchmark        |       Word2Vec       |       --         |       0.54          |
-

models/recall/word2vec/prepare_data.sh

@@ -35,6 +35,3 @@ wget --no-check-certificate https://paddlerec.bj.bcebos.com/word2vec/test_dir.ta
 tar xzvf test_dir.tar -C raw_data
 mv raw_data/data/test_dir test_data/
 rm -rf raw_data
-
-
-

models/treebased/README.md

@@ -24,4 +24,4 @@ TDM是为大规模推荐系统设计的、能承载任意先进模型来高效
    - 如何组网？答：paddle封装了大量的深度学习OP，用户可以根据需求设计自己的网络结构。
    - 训练数据如何组织？答：tdm的训练数据主要为：`user/query emb` 加 `item`的正样本，`item`需要映射到树的某个叶子节点。用户只需准备符合该构成的数据即可。负样本的生成，会基于用户提供的树结构，以及paddle提供的`tdm-sampler op`完成高效的负采样，并自动添加相应的label，参与tdm中深度学习模型的训练。
    - 大规模的数据与模型训练如何实现？答：基于paddle优秀的大规模参数服务器分布式能力，可以实现高效的分布式训练。基于paddle-fleet api，学习门槛极低，且可以灵活的支持增量训练，流式训练等业务需求。
-3. 训练好模型后，可以基于paddle，将检索与打分等流程都融入paddle的组网中，生成inference_model与参数文件，基于PaddlePaddle的预测库或者PaddleLite进行快速部署与高效检索。
\ No newline at end of file
+3. 训练好模型后，可以基于paddle，将检索与打分等流程都融入paddle的组网中，生成inference_model与参数文件，基于PaddlePaddle的预测库或者PaddleLite进行快速部署与高效检索。

models/treebased/tdm/tree/layer_list.txt

 1,2
 3,4,5,6
 7,8,9,10,11,12,13
-14,15,16,17,18,19,20,21,22,23,24,25
\ No newline at end of file
+14,15,16,17,18,19,20,21,22,23,24,25

run.py

@@ -26,8 +26,10 @@ from paddlerec.core.utils import util
 engines = {}
 device = ["CPU", "GPU"]
 clusters = ["SINGLE", "LOCAL_CLUSTER", "CLUSTER"]
-engine_choices = ["SINGLE", "LOCAL_CLUSTER", "CLUSTER",
-                  "TDM_SINGLE", "TDM_LOCAL_CLUSTER", "TDM_CLUSTER"]
+engine_choices = [
+    "SINGLE", "LOCAL_CLUSTER", "CLUSTER", "TDM_SINGLE", "TDM_LOCAL_CLUSTER",
+    "TDM_CLUSTER"
+]
 custom_model = ['TDM']
 model_name = ""
 
@@ -66,7 +68,8 @@ def get_engine(args):
     engine = engine.upper()
 
     if engine not in engine_choices:
-        raise ValueError("train.engin can not be chosen in {}".format(engine_choices))
+        raise ValueError("train.engin can not be chosen in {}".format(
+            engine_choices))
 
     print("engines: \n{}".format(engines))
 
@@ -77,8 +80,10 @@ def get_engine(args):
 
 def get_transpiler():
     FNULL = open(os.devnull, 'w')
-    cmd = ["python", "-c",
-           "import paddle.fluid as fluid; fleet_ptr = fluid.core.Fleet(); [fleet_ptr.copy_table_by_feasign(10, 10, [2020, 1010])];"]
+    cmd = [
+        "python", "-c",
+        "import paddle.fluid as fluid; fleet_ptr = fluid.core.Fleet(); [fleet_ptr.copy_table_by_feasign(10, 10, [2020, 1010])];"
+    ]
     proc = subprocess.Popen(cmd, stdout=FNULL, stderr=FNULL, cwd=os.getcwd())
     ret = proc.wait()
     if ret == -11:
@@ -152,7 +157,8 @@ def cluster_engine(args):
         update_workspace(flattens)
 
         envs.set_runtime_environs(flattens)
-        print(envs.pretty_print_envs(flattens, ("Submit Runtime Envs", "Value")))
+        print(envs.pretty_print_envs(flattens, ("Submit Runtime Envs", "Value"
+                                                )))
 
         launch = ClusterEngine(None, args.model)
         return launch
@@ -163,7 +169,8 @@ def cluster_engine(args):
         cluster_envs = {}
         cluster_envs["train.trainer.trainer"] = trainer
         cluster_envs["train.trainer.engine"] = "cluster"
-        cluster_envs["train.trainer.threads"] = envs.get_runtime_environ("CPU_NUM")
+        cluster_envs["train.trainer.threads"] = envs.get_runtime_environ(
+            "CPU_NUM")
         cluster_envs["train.trainer.platform"] = envs.get_platform()
         print("launch {} engine with cluster to with model: {}".format(
             trainer, args.model))
@@ -181,7 +188,8 @@ def cluster_engine(args):
 
 
 def cluster_mpi_engine(args):
-    print("launch cluster engine with cluster to run model: {}".format(args.model))
+    print("launch cluster engine with cluster to run model: {}".format(
+        args.model))
 
     cluster_envs = {}
     cluster_envs["train.trainer.trainer"] = "CtrCodingTrainer"
@@ -209,7 +217,8 @@ def local_cluster_engine(args):
     cluster_envs["train.trainer.platform"] = envs.get_platform()
 
     cluster_envs["CPU_NUM"] = "2"
-    print("launch {} engine with cluster to run model: {}".format(trainer, args.model))
+    print("launch {} engine with cluster to run model: {}".format(trainer,
+                                                                  args.model))
 
     set_runtime_envs(cluster_envs, args.model)
     launch = LocalClusterEngine(cluster_envs, args.model)
@@ -217,10 +226,12 @@ def local_cluster_engine(args):
 
 
 def local_mpi_engine(args):
-    print("launch cluster engine with cluster to run model: {}".format(args.model))
+    print("launch cluster engine with cluster to run model: {}".format(
+        args.model))
     from paddlerec.core.engine.local_mpi import LocalMPIEngine
 
-    print("use 1X1 MPI ClusterTraining at localhost to run model: {}".format(args.model))
+    print("use 1X1 MPI ClusterTraining at localhost to run model: {}".format(
+        args.model))
 
     mpi = util.run_which("mpirun")
     if not mpi:

setup.py

@@ -11,7 +11,6 @@
 # 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.
-
 """
 setup for paddle-rec.
 """
@@ -22,11 +21,7 @@ from setuptools import setup, find_packages
 import shutil
 import tempfile
 
-
-requires = [
-    "paddlepaddle == 1.7.2",
-    "pyyaml >= 5.1.1"
-]
+requires = ["paddlepaddle == 1.7.2", "pyyaml >= 5.1.1"]
 
 about = {}
 about["__title__"] = "paddle-rec"
@@ -48,18 +43,27 @@ def build(dirname):
     package_dir = os.path.dirname(os.path.abspath(__file__))
     run_cmd("cp -r {}/* {}".format(package_dir, dirname))
     run_cmd("mkdir {}".format(os.path.join(dirname, "paddlerec")))
-    run_cmd("mv {} {}".format(os.path.join(dirname, "core"), os.path.join(dirname, "paddlerec")))
-    run_cmd("mv {} {}".format(os.path.join(dirname, "doc"), os.path.join(dirname, "paddlerec")))
-    run_cmd("mv {} {}".format(os.path.join(dirname, "models"), os.path.join(dirname, "paddlerec")))
-    run_cmd("mv {} {}".format(os.path.join(dirname, "tests"), os.path.join(dirname, "paddlerec")))
-    run_cmd("mv {} {}".format(os.path.join(dirname, "tools"), os.path.join(dirname, "paddlerec")))
-    run_cmd("mv {} {}".format(os.path.join(dirname, "*.py"), os.path.join(dirname, "paddlerec")))
+    run_cmd("mv {} {}".format(
+        os.path.join(dirname, "core"), os.path.join(dirname, "paddlerec")))
+    run_cmd("mv {} {}".format(
+        os.path.join(dirname, "doc"), os.path.join(dirname, "paddlerec")))
+    run_cmd("mv {} {}".format(
+        os.path.join(dirname, "models"), os.path.join(dirname, "paddlerec")))
+    run_cmd("mv {} {}".format(
+        os.path.join(dirname, "tests"), os.path.join(dirname, "paddlerec")))
+    run_cmd("mv {} {}".format(
+        os.path.join(dirname, "tools"), os.path.join(dirname, "paddlerec")))
+    run_cmd("mv {} {}".format(
+        os.path.join(dirname, "*.py"), os.path.join(dirname, "paddlerec")))
 
     packages = find_packages(dirname, include=('paddlerec.*'))
     package_dir = {'': dirname}
     package_data = {}
 
-    models_copy = ['data/*.txt', 'data/*/*.txt', '*.yaml', '*.sh', 'tree/*.npy', 'tree/*.txt']
+    models_copy = [
+        'data/*.txt', 'data/*/*.txt', '*.yaml', '*.sh', 'tree/*.npy',
+        'tree/*.txt'
+    ]
     engine_copy = ['*/*.sh']
     for package in packages:
         if package.startswith("paddlerec.models."):
@@ -80,8 +84,7 @@ def build(dirname):
         package_data=package_data,
         python_requires=">=2.7",
         install_requires=requires,
-        zip_safe=False
-    )
+        zip_safe=False)
 
 
 dirname = tempfile.mkdtemp()