如何给节点添加属性？

Question

我一直在尝试向我正在创建的此节点添加名称等属性，但收到错误消息。 错误

  # add name as a property to each node

    # with networkX each node is a dictionary

    G.add_node(tweeter_id,'name' = tweeter_name)

    G.add_node(interact_id,'name' = interact_name)

这是我得到的错误。 错误信息

     File "<ipython-input-31-55b9aecd990d>", line 28

        G.add_node(tweeter_id,'name' = tweeter_name)

                              ^

    SyntaxError: expression cannot contain assignment, perhaps you meant "=="?

作为参考，这是整个代码：

import networkx as nx

# define an empty Directed Graph

# A directed graph is a graph where edges have a direction

# in our case the edges goes from user that sent the tweet to

# the user with whom they interacted (retweeted, mentioned or quoted)

#g = nx.Graph()

G = nx.DiGraph()

# loop over all the tweets and add edges if the tweet include some interactions

for tweet in tweet_list:

    # find all influencers in the tweet

    tweeter, interactions = getAllInteractions(tweet)

    tweeter_id, tweeter_name = tweeter

    tweet_id = getTweetID(tweet)

    

    # add an edge to the Graph for each influencer

    for interaction in interactions:

        interact_id, interact_name = interaction

        

        # add edges between the two user ids

        # this will create new nodes if the nodes are not already in the network

        # we also add an attribute the to edge equal to the id of the tweet

        G.add_edge(tweeter_id, interact_id, tweet_id=tweet_id)

        

        # add name as a property to each node

        # with networkX each node is a dictionary

        G.add_node(tweeter_id, tweeter_name)

        G.add_node(interact_id, interact_name)

Answer 1

正如您可以从文档中读到的使用关键字设置/更改节点属性：>>> G.add_node(1,size=10) >>> G.add_node(3,weight=0.4,UTM=('13S',382871,3972649))因此，请使用关键字参数name来定义属性。（注意：没有 Quotes，否则它将是 astr并且会导致SyntaxError您面临的，因为它是对字符串文字的赋值）做这样的事情：    # add name as a property to each node     # with networkX each node is a dictionary     G.add_node(tweeter_id, name = tweeter_name)     G.add_node(interact_id, name = interact_name)

Answer 2

发生这种情况是因为add_node是一个函数。而且你不能给函数赋值。当你尝试时，你正在这样做：G.add_node(tweeter_id, 'name') = tweeter_name我相信你想做的是：G.add_node(tweeter_id, attr_dict={'name': tweeter_name})或作为提比布人。M指出，你还可以这样做：G.add_node(tweeter_id, name=tweeter_name)

Answer 3

而不是你的G.add_node(tweeter_id,'name')&nbsp;=&nbsp;tweeter_name G.add_node(interact_id,'name')&nbsp;=&nbsp;interact_name使用G.add_node(tweeter_id,&nbsp;tweeter_name) G.add_node(interact_id,&nbsp;interact_name)（假设您已将一些字符串分配给变量tweeter_name和interact_name）。