字典中的"list indices must be integers, not float"/"IndexError: list assignment index out of range"错误

Question

我在生成字典时遇到此错误。我有三份清单。以下是打印

edge
[(6.0, 4.0), (4.0, 3.0), (4.0, 5.0), (3.0, 2.0), (5.0, 2.0), (5.0, 1.0), (2.0, 1.0)]
weight
[3, 5, 8, 0, 16, 2, 8]
node
[1.0, 2.0, 3.0, 4.0, 5.0, 6.0]

我的代码

GraphDict = {}
for i in range(len(node)):
    print('node',node[i])
    GraphDict[node[i]] = []
    for k in range(len(edge)):
        if node[i] == edge[k][0]:
            GraphDict[node[i]][edge[k][1]] = weight[k]
            print('Edge: n1, n2: weights', GraphDict[node[i]])
print('Dictionary Print')           
print(GraphDict)

行中出现错误。错误：列表索引必须是整数，而不是浮点

GraphDict[node[i]][edge[k][1]] = weight[k]

当我将所有浮点转换为整数时，错误是"IndexError:listassignmentindexoutrange"

GraphDict = {}
for i in range(len(node)):
    print('node',node[i])
    GraphDict[node[i]] = []
    for k in range(len(edge)):
        if node[i] == edge[k][0]:
            print(int(node[i]))
            ni = int(node[i])
            print(int(edge[k][1]))
            ei = int(edge[k][1])
            print(weight[k])
            GraphDict[ni][ei] = weight[k]
            print('Edge: n1, n2: weights', GraphDict[node[i]])
print('Dictionary Print')           
print(GraphDict)

Answer 1

错误消息说明了一切："列表索引必须是整数，而不是浮点"。因此，请确保将node[i]转换为int，或者在一开始就存储整数：

GraphDict[int(node[i])]

或

node = [1, 2, 3, 4, 5, 6]

edge也是如此。