old_contents: #!/usr/bin/env python3
  ''' Linear queue '''
  
  
  class Queue:
      def __init__(self):
          self.items = list()
  
      def is_Empty(self):
          return self.items == []
  
      def size(self):
          return len(self.items)
  
      def set(self, item):
          self.Queue.insert(0, item)
  
      def get(self):
          return self.items.pop()
  
  
  def main():
      pass
  
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python3
  ''' Linear queue '''
  
  
  class Queue:
      def __init__(self, items=[]):
          self.items = items
  
      def is_Empty(self):
          return self.items == []
  
      def size(self):
          return len(self.items)
  
      def enqueue(self, item):
          self.Queue.insert(0, item)
  
      def dequeue(self):
          return self.items.pop()
  
  
  def main():
      pass
  
  
  if __name__ == '__main__':
      main()
  
subject: Add default values and changed names for getter and setter