input: Write a function to create a Python generator that returns numbers from a given list.
  def list_generator(input_list):
      for item in input_list:
          yield item
  
  gen = list_generator([1, 3, 5, 7, 9])
  for item in gen:
      print(item)
output: def list_generator(input_list):
      for item in input_list:
          yield item