good example using of destructor

class Person:
    count=0
    def __init__(self,firstname,lastname,rang=1):
        self.firstname=firstname
        self.lastname=lastname
        self.rang=rang
    def __del__(self):
        while True:
            if Person.count==0:
                Person.count+=1
                print("Goodbye {0}".format(self.lastname))
            else:
                break
    def info(self):
        print("Firstname:{}\nLast:{}\nRang:{}\n".format(self.firstname,self.lastname,self.rang))

p1=Person('reap','copcheniy',2)
p2=Person('sisters','mercy',5)
p3=Person('cristian','death',7)
p1.info()
p2.info()
p3.info()
for j in [p1,p2,p3]:
    if j.rang==min([i for i in [p1.rang,p2.rang,p3.rang]]):
        del j