import datetime as dt

class Calculator:
    records = []
    def __init__(self, limit, date = ' '):
        self.limit = limit
        self.count = 0
        self.date = Date.formate_date(self, date)


    def add_record(self, record):
        #self.count += record.amount
        self.records.append(record)
        for item in self.records:
            print(item.amount)


    #def get_week_stats():

class CashCalculator(Calculator):
    def __init__(self, limit):
       super().__init__(limit)
       self.count = 0
       print(f'Создан калькулятор денег с лимитом {self.limit}')

    def add_record(self, record):
        super().add_record(record)
    # def get_today_cash_remained(self, currency):
    #     for n in range
    #     remained = self.limit

        #for n in range(len(self.records)):
         #   spent += str(self.records[n,0])


   #def get_today_stats():


class Record(CashCalculator):
    def __init__(self, amount, comment, date = ' '):
        self.amount = amount
        self.comment = comment
        self.date = Date.formate_date(self, date)   # Вопрос: почему еще и self должен передавать?
        # Проверка создания записи
        #print(f'Создана запись! Затраты: {self.amount}, комментарий: "{self.comment}", дата - {self.date}')

    def show(self):
        print(f'Создана запись! Затраты: {self.amount}, комментарий: "{self.comment}", дата - {self.date}')

# Класс для форматирования даты
class Date:
    def formate_date(self, date):
        if date == " ":
            now = dt.datetime.now()
            date = now.date()
        elif date != " ":
            date_format = '%d.%m.%Y'
            moment = dt.datetime.strptime(date, date_format)
            date = moment.date()
        return date

# Тесты
#r1 = Record(amount = 145, comment = "Безудержный шопинг", date = '08.11.2019')
#r2 = Record(amount=84, comment="Йогурт.", date="23.02.2019")
#r1.show()
#r2.show()

cash_calculator = CashCalculator(1000)
cash_calculator.add_record(Record(amount=145, comment="кофе"))
cash_calculator.add_record(Record(amount=300, comment="Серёге за обед"))