old_contents: def  my_function():
      print "Do something"
  my_function()
  
  def say_hi():
      print "hi!"
  say_hi()
  
  def say_hi(name):
      comment = "Hi %s!" % name
      return comment
  
  name = 'Greg'
  print say_hi(name)
  
  name2 = 'Wilson'
  new_comment = say_hi(name2)
  print "Use %s here" % new_comment
  
  
  
  
new_contents: ##PART-1###
  
  def  my_function():
      print "Do something"
  my_function()
  
  ##PART-2###
  def say_hi():
      print "hi!"
  say_hi()
  
  ##PART-3###
  def say_hi(name):
      comment = "Hi %s!" % name
      return comment
  
  name = 'Greg'
  print say_hi(name)
  
  name2 = 'Wilson'
  new_comment = say_hi(name2)
  print "Use %s here" % new_comment
  
  
  
  
subject: Update function.py