from calendar_book import *
book = CalendarBook('2018')
print(len(book)) # 377

# print(book.title) # 2018
# print(book[1])
# print(book[2])
# print(book[32])
# print(book[33])
# book[0] # PageNotFoundError

print(book.bookmark) # 0
book.bookmark = 7
print(book.bookmark) # 7
# del book.bookmark # AttributeError: __delete__
# print(book.bookmark) # 7
book[2] += '\nHappy New Year!!!'
print(book[2]) # added string