这是我的代码
N = namedtuple("N", ['ind', 'set', 'v']) def solve() items=[] stack=[] R = set(range(0,8)) for i in range(0,8): items.append(N(i,R,8)) stack.append(N(0,R-set(range(0,1)),i)) while(len(stack)>0): node = stack.pop() print node print items[node.ind] items[node.ind].v = node.v在最后一行中,我无法根据需要将items[node.ind].v值设置为node.v,并且出现错误
In the last line I cant set the items[node.ind].v value to node.v as I want, and am getting the error
"AttributeError: can't set attribute"我不知道出了什么问题,但这一定是基于语法的,因为使用node.v+=1之类的语句也显示了相同的错误.我是Python的新手,所以请提出一种使上述更改成为可能的方法.
I don't know what's wrong but it must be something based on syntax as using statements like node.v+=1 is also showing same error. I'm new to Python, so please suggest a way to make the above change possible.
推荐答案items[node.ind] = items[node.ind]._replace(v=node.v)
(注意:由于函数_replace中的前导下划线,因此不建议使用此解决方案.特别是对于namedtuple,某些函数的前导下划线不是为了表示它们应为私有")
(Note: Don't be discouraged to use this solution because of the leading underscore in the function _replace. Specifically for namedtuple some functions have leading underscore which is not for indicating they are meant to be "private")
更多推荐
AttributeError:无法在python中设置属性
发布评论