old_contents: #!/usr/bin/python
  
  """
  This callback plugin verifies the required minimum version of Ansible
  is installed for proper operation of the OpenShift Ansible Installer.
  The plugin is named with leading `aa_` to ensure this plugin is loaded
  first (alphanumerically) by Ansible.
  """
  import sys
  from ansible import __version__
  
  if __version__ < '2.0':
      # pylint: disable=import-error,no-name-in-module
      # Disabled because pylint warns when Ansible v2 is installed
      from ansible.callbacks import display as pre2_display
      CallbackBase = object
  
      def display(*args, **kwargs):
          """Set up display function for pre Ansible v2"""
          pre2_display(*args, **kwargs)
  else:
      from ansible.plugins.callback import CallbackBase
      from ansible.utils.display import Display
  
      def display(*args, **kwargs):
          """Set up display function for Ansible v2"""
          display_instance = Display()
          display_instance.display(*args, **kwargs)
  
  
  # Set to minimum required Ansible version
  REQUIRED_VERSION = '2.4.0.0'
  DESCRIPTION = "Supported versions: %s or newer" % REQUIRED_VERSION
  
  
  def version_requirement(version):
      """Test for minimum required version"""
      return version >= REQUIRED_VERSION
  
  
  class CallbackModule(CallbackBase):
      """
      Ansible callback plugin
      """
  
      CALLBACK_VERSION = 1.0
      CALLBACK_NAME = 'version_requirement'
  
      def __init__(self):
          """
          Version verification is performed in __init__ to catch the
          requirement early in the execution of Ansible and fail gracefully
          """
          super(CallbackModule, self).__init__()
  
          if not version_requirement(__version__):
              display(
                  'FATAL: Current Ansible version (%s) is not supported. %s'
                  % (__version__, DESCRIPTION), color='red')
              sys.exit(1)
  
new_contents: #!/usr/bin/python
  
  """
  This callback plugin verifies the required minimum version of Ansible
  is installed for proper operation of the OpenShift Ansible Installer.
  The plugin is named with leading `aa_` to ensure this plugin is loaded
  first (alphanumerically) by Ansible.
  """
  import sys
  from ansible import __version__
  
  if __version__ < '2.0':
      # pylint: disable=import-error,no-name-in-module
      # Disabled because pylint warns when Ansible v2 is installed
      from ansible.callbacks import display as pre2_display
      CallbackBase = object
  
      def display(*args, **kwargs):
          """Set up display function for pre Ansible v2"""
          pre2_display(*args, **kwargs)
  else:
      from ansible.plugins.callback import CallbackBase
      from ansible.utils.display import Display
  
      def display(*args, **kwargs):
          """Set up display function for Ansible v2"""
          display_instance = Display()
          display_instance.display(*args, **kwargs)
  
  
  # Set to minimum required Ansible version
  REQUIRED_VERSION = '2.4.1.0'
  DESCRIPTION = "Supported versions: %s or newer" % REQUIRED_VERSION
  
  
  def version_requirement(version):
      """Test for minimum required version"""
      return version >= REQUIRED_VERSION
  
  
  class CallbackModule(CallbackBase):
      """
      Ansible callback plugin
      """
  
      CALLBACK_VERSION = 1.0
      CALLBACK_NAME = 'version_requirement'
  
      def __init__(self):
          """
          Version verification is performed in __init__ to catch the
          requirement early in the execution of Ansible and fail gracefully
          """
          super(CallbackModule, self).__init__()
  
          if not version_requirement(__version__):
              display(
                  'FATAL: Current Ansible version (%s) is not supported. %s'
                  % (__version__, DESCRIPTION), color='red')
              sys.exit(1)
  
subject: Update version check to Ansible 2.4.1