old_contents: #   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
  
  import logging
  
  __all__ = ['get_logger']
  
  
  def get_logger(name, level, fmt=None):
      """
      Get logger from logging with given name, level and format without
      setting logging basicConfig. For setting basicConfig in paddle
      will disable basicConfig setting after import paddle.
  
      Args:
          name (str): The logger name.
          level (logging.LEVEL): The base level of the logger
          fmt (str): Format of logger output
  
      Returns:
          logging.Logger: logging logger with given settings
  
      Examples:
          .. code-block:: python
  
              logger = log_helper.get_logger(__name__, logging.INFO,
                              fmt='%(asctime)s-%(levelname)s: %(message)s')
      """
  
      logger = logging.getLogger(name)
      logger.setLevel(level)
      handler = logging.StreamHandler()
  
      if fmt:
          formatter = logging.Formatter(fmt=fmt)
          handler.setFormatter(formatter)
  
      logger.addHandler(handler)
      return logger
  
new_contents: #   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
  
  import logging
  
  __all__ = ['get_logger']
  
  
  def get_logger(name, level, fmt=None):
      """
      Get logger from logging with given name, level and format without
      setting logging basicConfig. For setting basicConfig in paddle
      will disable basicConfig setting after import paddle.
  
      Args:
          name (str): The logger name.
          level (logging.LEVEL): The base level of the logger
          fmt (str): Format of logger output
  
      Returns:
          logging.Logger: logging logger with given settings
  
      Examples:
          .. code-block:: python
  
              logger = log_helper.get_logger(__name__, logging.INFO,
                              fmt='%(asctime)s-%(levelname)s: %(message)s')
      """
  
      logger = logging.getLogger(name)
      logger.setLevel(level)
      handler = logging.StreamHandler()
  
      if fmt:
          formatter = logging.Formatter(fmt=fmt)
          handler.setFormatter(formatter)
  
      logger.addHandler(handler)
  
      # stop propagate for propagating may print
      # log multiple times
      logger.propagate = False
      return logger
  
subject: fix logger propagate. test=develop (#23961)