无法用python可视化网络-pygraphviz有问题吗？

当我使用一些代码来可视化网络时，我遇到了一个错误

Traceback (most recent call last):
File "networkplot.py", line 21, in <module>
pos = graphviz_layout(G, prog='neato')
File "/opt/conda/lib/python2.7/site-packages/networkx/drawing/nx_agraph.py", line 228, in graphviz_layout
return pygraphviz_layout(G,prog=prog,root=root,args=args)
File "/opt/conda/lib/python2.7/site-packages/networkx/drawing/nx_agraph.py", line 258, in pygraphviz_layout
'http://pygraphviz.github.io/')
ImportError: ('requires pygraphviz ', 'http://pygraphviz.github.io/')

我使用的代码是：

import networkx as nx
import matplotlib.pyplot as plt
plt.switch_backend('agg')
from networkx.drawing.nx_agraph import graphviz_layout
import graphs 

A = graphs.create_graph()
graph = A.graph
G, labels = A.networkList()

fig = plt.figure()
pos = graphviz_layout(G, prog='neato')

---

有人能告诉我怎么解决这个问题吗？我非常感谢你的帮助。多谢各位

libcgraph

是来自的graphviz包的一部分。在安装

pygraphviz

之前，您需要先安装它。与pip一起安装的

graphviz

软件包是一个Python软件包，而不是您需要的graphviz软件包。

您可以在windows中下载graphviz并通过运行neato

dot-Kneato-Tpng文件\u name.dot-o文件\u name.png

Yes，我添加了

import-graphviz

，它仍然显示

ImportError:（'requires-pygraphviz'，'http://pygraphviz.github.io/“）

您是否尝试将包含libcgraph的目录添加到PKG\u CONFIG\u PATH环境变量中？

import networkx as nx
import matplotlib.pyplot as plt
plt.switch_backend('agg')
from networkx.drawing.nx_agraph import graphviz_layout
import graphs 

A = graphs.create_graph()
graph = A.graph
G, labels = A.networkList()

fig = plt.figure()
pos = graphviz_layout(G, prog='neato')