old_contents: #
  # Copyright 2014  Infoxchange Australia
  #
  # 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.
  
  """
  Common declarations.
  """
  
  import os
  import socket
  
  
  def application_id():
      """
      A string which identifies the application.
  
      Use to avoid conflicts between services for different applications.
      """
  
      # TODO: get something from the image name
      return os.path.basename(os.path.abspath(os.curdir))
  
  
  def free_port():
      """
      Find a free TCP port.
      """
  
      with socket.socket() as sock:
          sock.bind(('', 0))
          return sock.getsockname()[1]
  
  
  class ImproperlyConfigured(Exception):
      """
      The host is not properly configured for running Docker.
      """
  
      pass
  
  try:
      import subprocess
      DEVNULL = subprocess.DEVNULL  # pylint:disable=no-name-in-module
  except AttributeError:
      DEVNULL = open(os.devnull)
  
new_contents: #
  # Copyright 2014  Infoxchange Australia
  #
  # 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.
  
  """
  Common declarations.
  """
  
  import os
  import socket
  
  
  def application_id():
      """
      A string which identifies the application.
  
      Use to avoid conflicts between services for different applications.
      """
  
      # TODO: get something from the image name
      return os.path.basename(os.path.abspath(os.curdir))
  
  
  def free_port():
      """
      Find a free TCP port.
      """
  
      with socket.socket() as sock:
          sock.bind(('', 0))
          return sock.getsockname()[1]
  
  
  class ImproperlyConfigured(Exception):
      """
      The host is not properly configured for running Docker.
      """
  
      pass
  
  try:
      import subprocess
      DEVNULL = subprocess.DEVNULL  # pylint:disable=no-member
  except AttributeError:
      DEVNULL = open(os.devnull)
  
subject: Fix Python 3.2