我正在努力研究如何从函数传递参数，以便我可以在另一个函数中填充列表 - 我的代码是：
infinity = 1000000
invalid_node = -1
startNode = 0
#Values to assign to each node
class Node:
distFromSource = infinity
previous = invalid_node
visited = False
#read in all network nodes
def network():
f = open ('network.txt', 'r')
theNetwork = [[int(node) for node in line.split(',')] for line in f.readlines()]
print theNetwork
return theNetwork
#for each node assign default values
def populateNodeTable():
nodeTable = []
index = 0
f = open('network.txt', 'r')
for line in f:
node = map(int, line.split(','))
nodeTable.append(Node())
print "The previous node is " ,nodeTable[index].previous
print "The distance from source is " ,nodeTable[index].distFromSource
index +=1
nodeTable[startNode].distFromSource = 0
return nodeTable
#find the nearest neighbour to a particular node
def nearestNeighbour(currentNode, theNetwork):
nearestNeighbour = []
nodeIndex = 0
for node in nodeTable:
if node != 0 and currentNode.visited == false:
nearestNeighbour.append(nodeIndex)
nodeIndex +=1
return nearestNeighbour
currentNode = startNode
if __name__ == "__main__":
nodeTable = populateNodeTable()
theNetwork = network()
nearestNeighbour(currentNode, theNetwork)所以，我试图用距离其他节点最近的节点列表来填充我的nearestNeighbour函数中最近的邻近列表。现在，所有其他函数都可以正常工作，并且所有参数都按照它的原样传递。
但是，我最近的邻近函数抛出这个错误消息：
if node != 0 and
theNetwork[currentNode].visited ==
false: AttributeError: 'list' object
has no attribute 'visited'
(对于布局抱歉，还没有很清楚地使用代码引用)