text: #!/usr/bin/python3
  
  def hi(name="Paul"):
      def greet():
          return "now you are in the greet() "+name+" function"
   
      def welcome():
          return "now you are in the welcome() "+name+" function"
   
      if name == "Paul":
          return greet
      else:
          return welcome
   
  a = hi()
  print(a)
  #outputs: <function greet at 0x7f2143c01500>
   
   
  print(a())
  print("     name=:",hi(name="Paul")())
  print("none name=:",hi("Paul")())