diff --git a/python/pipeline/channel.py b/python/pipeline/channel.py
new file mode 100644
index 0000000000000000000000000000000000000000..a0eed6da107c0955be0d0bbcdda2967402b84b68
--- /dev/null
+++ b/python/pipeline/channel.py
@@ -0,0 +1,14 @@
+#   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.
+# pylint: disable=doc-string-missing
diff --git a/python/pipeline/operator.py b/python/pipeline/operator.py
new file mode 100644
index 0000000000000000000000000000000000000000..a0eed6da107c0955be0d0bbcdda2967402b84b68
--- /dev/null
+++ b/python/pipeline/operator.py
@@ -0,0 +1,14 @@
+#   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.
+# pylint: disable=doc-string-missing
diff --git a/python/pipeline/pipeline_server.py b/python/pipeline/pipeline_server.py
new file mode 100644
index 0000000000000000000000000000000000000000..a0eed6da107c0955be0d0bbcdda2967402b84b68
--- /dev/null
+++ b/python/pipeline/pipeline_server.py
@@ -0,0 +1,14 @@
+#   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.
+# pylint: disable=doc-string-missing
diff --git a/python/pipeline/profiler.py b/python/pipeline/profiler.py
new file mode 100644
index 0000000000000000000000000000000000000000..a0eed6da107c0955be0d0bbcdda2967402b84b68
--- /dev/null
+++ b/python/pipeline/profiler.py
@@ -0,0 +1,14 @@
+#   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.
+# pylint: disable=doc-string-missing