Method getx

recipes/Python/59884_RPN_Stack_class/recipe-59884.py:103–108

(self)

class RPN_Stack(Stack):
               
        def getx(self):  #get x register (bottom)
                try:
                        self.stack[0]
                except:
                        return "error:  stack underflow"
                return self.stack[0]
       
        def gety(self):  #get y register
                try: