def replace_number(self, fnumber):
temp_adress = self.book[self.key][0]
r = dict(self.book)
del r[self.key]
self.book = r
Adress_list2 = temp_adress
Phonenumber2 = PhoneNumber(fnumber)
self.new_contact_info = [Adress_list2, Phonenumber2]
self.book[self.key] = self.new_contact_info
def add_new_contact(self, street, postcode, city, fnumber):
Adress_list = Adress(street, postcode, city)
Phonenumber = PhoneNumber(fnumber)
self.contact_info = [Adress_list, Phonenumber]
self.book[self.key] = self.contact_info
