text: import sys; sys.path.insert(0, "..")
  from tools_for_pygame import Stack
  
  s = Stack(1, 2, 3, 4)
  print(s, len(s))
  
  for i in s:
      print(i)
  
  print("Stack.push", s.push(2))
  print(s, len(s))
  
  print("Stack.pop", s.pop())
  print(s, len(s))
  
  print("Stack.peek", s.peek())
  print(s, len(s))
  
  print("Stack.is_empty", s.is_empty)
  
  print("Stack.clear", s.clear())
  print(s, len(s))
  