old_contents: """Specific support for getpass."""
  import os
  import getpass
  
  from keyring.core import get_password as original_get_password
  
  def get_password(prompt='Password: ', stream=None,
                   service_name='Python',
                   username=None):
      if username is None:
          username = getpass.getuser()
      return original_get_password(service_name, username)
  
  
new_contents: """Specific support for getpass."""
  import os
  import getpass
  
  import keyring.core
  
  def get_password(prompt='Password: ', stream=None,
                   service_name='Python',
                   username=None):
      if username is None:
          username = getpass.getuser()
      return keyring.core.get_password(service_name, username)
  
  
subject: Use module namespaces to distinguish names instead of 'original_' prefix