old_contents: #!/usr/bin/env python
  
  from __future__ import print_function
  
  if __name__ == "__main__":
  	print("Hello Server!")
  
new_contents: #!/usr/bin/env python
  
  from __future__ import print_function
  
  def main():
  	print("Running Main Loop!")
  
  if __name__ == "__main__":
  	print("Hello Server!")
  	main()
  	print("Goodbye Server!")
  
subject: Update main.py