display Image graph.create_png InvocationException: GraphViz‘s executables not found

import pydotplus
操作环境:

MacBook Pro,

Python3.6.5,

Jupyter Notebook,

系统版本:Mac OS Big Sur

from IPython.display import display,Image

dot_data = tree.export_graphviz(clf,
                     out_file=None,
                      feature_names=iris_feature_name,
                      class_names = iris_target_name,
                      filled = True,
                      rounded = True
                     )

graph = pydotplus.graph_from_dot_data(dot_data)

display(Image(graph.create_png()))

执行最后一行代码是 提示

InvocationException: GraphViz's executables not found

很明显,需要安装graphviz

首先确保brew安装,brew install graphviz

附:

Mac安装brew

/bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"

开始执行Brew自动安装程序

[[email protected]]

['2021-06-06 11:19:39']['11.4']

https://zhuanlan.zhihu.com/p/111014448

请选择一个下载镜像,例如中科大,输入1回车。

源有时候不稳定,如果git克隆报错重新运行脚本选择源。cask非必须,有部分人需要。

1、中科大下载源 2、清华大学下载源 3、北京外国语大学下载源 4、腾讯下载源(不推荐) 5、阿里巴巴下载源(不推荐 缺少cask源)

选择2 网络问题导致失败

选择3 后续安装软件(brew install )容易异常

==> Installing dependencies for git: pcre2

==> Installing git dependency: pcre2

==> Pouring pcre2-10.37.big_sur.bottle.tar.gz

tar: Error opening archive: Failed to open '/Users/aimmon/Library/Caches/Homebrew/downloads/a4ffef1d16f544b1487c843bbf93381600366d3c365c37befc664cba85dfa603--pcre2-10.37.big_sur.bottle.tar.gz'

Error: Failure while executing; `tar --extract --no-same-owner --file /Users/aimmon/Library/Caches/Homebrew/downloads/a4ffef1d16f544b1487c843bbf93381600366d3c365c37befc664cba85dfa603--pcre2-10.37.big_sur.bottle.tar.gz --directory /private/tmp/d20210606-18464-1u8c5v5` exited with 1. Here's the output:

选择1(个人推荐)

最后运行成功

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转载自blog.csdn.net/u013985879/article/details/117631366