old_contents: """Example python module for the PPP."""
  
  from ppp_core import HttpRequestHandler
  from .requesthandler import RequestHandler
  
  def app(environ, start_response):
      """Function called by the WSGI server."""
      return HttpRequestHandler(environ, start_response, RequestHandler) \
              .dispatch()
  
new_contents: """Example python module for the PPP."""
  
  from ppp_libmodule import HttpRequestHandler
  from .requesthandler import RequestHandler
  
  def app(environ, start_response):
      """Function called by the WSGI server."""
      return HttpRequestHandler(environ, start_response, RequestHandler) \
              .dispatch()
  
subject: Support split of ppp_core.