python - 无法绘制石榴图(找不到 pygraphviz)

Question

我无法理解发生了什么，但我似乎无法再从 PyCharm 内部绘制石榴图。我正在使用 conda 作为包管理器，并且已经照常进行了:

conda install graphviz
conda install python-graphviz

但每次我从 PyCharm 内部调用 model.plot() 时，我都会得到

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/Applications/PyCharm.app/Contents/helpers/pydev/_pydev_bundle/pydev_umd.py", line 198, in runfile
    pydev_imports.execfile(filename, global_vars, local_vars)  # execute the script
  File "/Applications/PyCharm.app/Contents/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "/Users/.../xai/import.py", line 36, in <module>
    model.plot()
  File "pomegranate/BayesianNetwork.pyx", line 281, in pomegranate.BayesianNetwork.BayesianNetwork.plot
ValueError: must have pygraphviz installed for visualization

我显然已经尝试安装 pygraphviz 但它似乎没有什么区别

Answer 1

我刚遇到同样的问题。我解决了安装 graphviz 开发包的问题。在 openSUSE 存储库中，它被称为 graphviz-devel。

它的描述是这样的:

The graphviz-devel package contains all that's necessary for developing programs that use the graphviz libraries including man3 pages.