模块“networkx"没有属性“add_nodes_from" [英] module 'networkx' has no attribute 'add_nodes_from'

问题描述

我有一本字典，以作者姓名字符串作为索引，以出版物的数量作为关联值.当我尝试将节点添加到新图中时，出现以下错误:

I have a dictionary with author name strings as indexes and the number of publications as the associated value. When I try adding nodes to a new graph from it, I get the following error:

AttributeError: module 'networkx' has no attribute 'add_nodes_from'

这是一个示例代码:

import networkx as nx
auth_dict = {"albert": 1, "Barbie": 3, "Charlie": 8}
G = nx.MultiGraph()
G = nx.add_nodes_from(auth_dict)

环境是 pip 管理的 python 3.7.2 和 networkx 2.2，MacOS 10.13.6

Environment is pip managed python 3.7.2 with networkx 2.2, MacOS 10.13.6

这是我尝试遵循的参考:https://networkx.github.io/documentation/stable/reference/classes/generated/networkx.Graph.add_nodes_from.html#networkx.Graph.add_nodes_from

This is the reference I tried to follow: https://networkx.github.io/documentation/stable/reference/classes/generated/networkx.Graph.add_nodes_from.html#networkx.Graph.add_nodes_from

谢谢

推荐答案

您调用 add_nodes_from 的方式是错误的.它是基础 MultiGraph 类，而不是 networkx 模块本身的属性.所以语法应该是

You're calling add_nodes_from the wrong way. It is a method of the base MultiGraph class, and not an attribute of the networkx module itself. So the Syntax should be

G = nx.MultiGraph()
G.add_nodes_from(auth_dict)

(注意点而不是 '=').

(notice the dot instead of '=').

所以我猜你是叫它

G = nx.add_nodes_from(foo)

在你的主代码中，这也是错误的语法 - 看看 此处 或您自己发布的链接以获取更多信息.

in your main code, which is, again, the wrong syntax - look here or at the link you posted yourself for more info.

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