old_contents: 
  from .helloworld import helloworld
  
  def main ( ) :
  
  	print( helloworld )
  
  	helloworld( )
  
  	c = 0
  
  	for i in range( 10000000 ) : c += i
  
  	print( c )
  
new_contents: 
  from .helloworld import helloworld
  
  def main ( ) :
  
  	print( main , helloworld )
  
  	helloworld( )
  
  	c = 0
  
  	for i in range( 10000000 ) : c += i
  
  	print( c )
  
subject: print main object