Question

我正在尝试使用本页中记录的networkx“ stochastic_block_model”中的函数来生成随机块模型图：https://networkx.github.io/documentation/stable/reference/generated/networkx.generators.community.stochastic_block_model.html

我的networkx软件包已更新到2.2版本，但我一直收到错误消息：模块“ networkx”没有属性“ stochastic_block_model”。我该如何解决这个问题？

import networkx as nx


sizes = [75, 75, 300]
probs = [[0.25, 0.05, 0.02],
        [0.05, 0.35, 0.07],
        [0.02, 0.07, 0.40]]
g = nx.stochastic_block_model(sizes, probs, seed=0)
len(g)

H = nx.quotient_graph(g, g.graph['partition'], relabel=True)
for v in H.nodes(data=True):
    print(round(v[1]['density'], 3))




for v in H.edges(data=True):
    print(round(1.0 * v[2]['weight'] / (sizes[v[0]] * sizes[v[1]]), 3))

Answer 1

我使用的是networkx的2.2版，这是pypi上的最新版本。这应该起作用：

from networkx.generators.community import stochastic_block_model

在__init__.py生成器包的networkx.generators内，您将发现：

"""
A package for generating various graphs in networkx.

"""
from networkx.generators.atlas import *
from networkx.generators.classic import *
from networkx.generators.community import *
from networkx.generators.degree_seq import *
from networkx.generators.directed import *
from networkx.generators.duplication import *
from networkx.generators.ego import *
from networkx.generators.expanders import *
from networkx.generators.geometric import *
from networkx.generators.intersection import *
from networkx.generators.joint_degree_seq import *
from networkx.generators.lattice import *
from networkx.generators.line import *
from networkx.generators.mycielski import *
from networkx.generators.nonisomorphic_trees import *
from networkx.generators.random_clustered import *
from networkx.generators.random_graphs import *
from networkx.generators.small import *
from networkx.generators.social import *
from networkx.generators.spectral_graph_forge import *
from networkx.generators.stochastic import *
from networkx.generators.trees import *
from networkx.generators.triads import *

因此，您应该可以像这样导入它：

from networkx.generators import stochastic_block_model

Answer 2

关键是我必须删除正在运行的实例，并在升级软件包以获取新的更新后重新启动我的笔记本或任何python shell。

模块“ networkx”没有属性“ stochastic_block_model”

2 个答案: