如何从字典创建元组？

问题描述

from collections import namedtuple    
BookPlan = namedtuple('Book',['size','weight'])
books = BookPlan(3,5),BookPlan(4,9)
i=0
book={}
while (i<3):
    book['size'] = i
    book['weight'] = i*5
    i=i+1
    books=books+BookPlan(**book)
print (books)

我想得到这样的东西：

Book(size=3,weight=5),Book(size=4,weight=9),Book(size=1,Book(size=2,weight=10)

但事实上我得到：

(Book(size=3,1,5,2,10)

结果类似于 namedtuple 和 tuple 的串联。我的错误在哪里？

解决方法

书籍 = 书籍 + (BookPlan(**book),)

感谢 falsetru