this is my file

i tried this but I need some other way with open(record_file_name, ‘r’) as file:
for line in file:
parts = line.strip().split(‘, ‘)
book_id = parts[0]

          if book_id not in self.books:
              self.books[book_id] = Book(book_id)
          
          for record in parts[1:]:
              member_id, days = record.split(': ')
              if member_id not in self.members:
                  self.members[member_id] = Member(member_id)
              self.books[book_id].adding_record(member_id, days)
              self.members[member_id].add_book(book_id, days)