#!/usr/bin/python3



class Dog:

    def __init__(self, name, home_address=None, has_id_tag=True):

        self.name=name

        self.home_address=home_address

        self.has_id_tag=has_id_tag



    def hasTag(self):

         return self.has_id_tag 



    def lookAtTag(self):

         results = [self.name]

         if self.home_address != None:

             results.extend(self.home_address)

         return results

        

    @staticmethod

    def bark():

         print('"bark!"')



if __name__=='__main__':

    fido = Dog('fido', ('123 Fake St.', 'Houston, TX'))

    print('ok look, a dog!')

    fido.bark()

    if fido.hasTag():

        print('lets see what its collar says')

        [ print("\t"+x) for x in fido.lookAtTag() ]