"RuntimeError: Make sure the Graphviz executables are on your system's path . "在安装Graphviz 2.38之后

我下载了Graphviz 2.38 MSI版本，安装在C:\Python34文件夹下，然后运行pip安装Graphviz，一切顺利。在系统路径中我添加了C:\Python34\bin。当我试图运行一个测试脚本，在行filename= .render(filename='test')，我得到了一个消息

 RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path

我尝试将“C:\Python34\bin\dot.exe”放在系统路径中，但它不起作用，我甚至创建了一个新的环境变量“GRAPHVIZ_DOT”，其值为“C:\Python34\bin\dot.exe”，仍然不起作用。我尝试卸载Graphviz和pip uninstall Graphviz，然后重新安装它和pip install，但没有任何工作。

整个回溯消息是:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\graphviz\files.py", line 220, in render
    proc = subprocess.Popen(cmd, startupinfo=STARTUPINFO)
  File "C:\Python34\lib\subprocess.py", line 859, in __init__
    restore_signals, start_new_session)
  File "C:\Python34\lib\subprocess.py", line 1112, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Documents\Kissmetrics\curves and lines\eventNodes.py", line 56, in <module>
    filename=dot.render(filename='test')
  File "C:\Python34\lib\site-packages\graphviz\files.py", line 225, in render
    'are on your systems\' path' % cmd)
RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path

有人有经验吗?

当前回答

Windows:

安装windows包从:https://graphviz.gitlab.io/_pages/Download/Download_windows.html 安装python graphviz包添加“用户路径”为“C:\Program Files (x86)\ Graphviz2.38\bin” 将C:\Program Files (x86)\ Graphviz2.38\bin\dot.exe添加到“系统路径”

这对我很管用!

2017-05-16 15:05:07

其他回答

试着在anaconda提示符中逐一输入以下代码。

这对我很管用。

来源:https://anaconda.org/conda-forge/python-graphviz

conda install -c conda-forge python-graphviz
conda install -c conda-forge/label/broken python-graphviz
conda install -c conda-forge/label/cf201901 python-graphviz
conda install -c conda-forge/label/cf202003 python-graphviz

然后重新启动内核!

2020-05-19 12:01:58

1.安装windows软件包:https://graphviz.gitlab.io/_pages/Download/Download_windows.html，下载msi文件

添加环境变量 2. 添加“用户路径”为“C:\Program Files (x86)\ Graphviz2.38\bin”

将C:\Program Files (x86)\ Graphviz2.38\bin\dot.exe添加到“系统路径” 重新启动你的python笔记本。

它会起作用的。

2019-04-24 18:47:11

在安装包之后(如果没有，请链接)，将路径作为一个新的系统变量添加到dot.exe。

默认路径为:

C:\Program Files (x86)\ Graphviz2.38\bin\dot.exe

2017-10-31 09:18:06

在Windows环境下，使用巧克力安装，它将确保环境变量设置正确。