add logger

paddle_hub/logger.py

+#   Copyright (c) 2019  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
+from __future__ import division
+from __future__ import print_function
+import logging
+
+log_level = logging.DEBUG
+logging.basicConfig(
+    format=
+    '[%(asctime)-15s] [%(levelname)8s] - %(message)s (%(filename)s:%(lineno)s)')
+logger = logging.getLogger('paddle-hub')
+logger.setLevel(log_level)