スクーさんの授業で作ったアドレス帳のソースコードです

AddressBook.py

class AddressBook:
    person_list = []

    def add(self, person):
        self.person_list.append(person)

    def list_all(self):
        for p in self.person_list:
            print(p.lastname + " " + p.firstname)

    def search(self,k):
        for p in self.person_list:
            if k in p.firstname:
                print(p.firstname)
class Person:
    firstname = ''
    lastname = ''
    import datetime
    birthday = datetime.date(1979,11,12)

abook = AddressBook()

yumoto = Person()
yumoto.firstname = 'みちたか'
yumoto.lastname = 'ゆもと'
abook.add(yumoto)

tokuda = Person()
tokuda.firstname = 'あおい'
tokuda.lastname = 'とくだ'
abook.add(tokuda)

abook.list_all()
abook.search('あおい')