def gen_books():
books_list = []
data = pd.read_csv('catalogue.csv')
data = data[(data.resource_type == 'Book')]
data = data.loc['title', 'author', 'code', 'year', 'total_copies',
'available_copies'].values
for i in range(len(data)):
obj_book = Book()
obj_book.title = data[i, 0]
obj_book.author = data[i, 1]
obj_book.code = data[i, 2]
obj_book.year = data[i, 3]
obj_book.total_copies = data[i, 4]
obj_book.available_copies = data[i, 5]
return books_list
