"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

Mac & Big Sur。Python 3.8.6 w/vs code。虽然它应该包含在图表包中，但我不得不手动安装graphviz。

(mymltools) ➜  infrastructure git:(master) pip list
Package    Version
---------- -------
diagrams   0.18.0
graphviz   0.13.2
Jinja2     2.11.2
MarkupSafe 1.1.1
pip        20.3.2
setuptools 51.0.0
wheel      0.36.2

运行图表失败。然后手动运行

pipenv install graphviz

效果非常好。

2021-01-26 22:40:53

其他回答

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

OSX Sierra, Python 2.7, Graphviz 2.38

使用pip install graphviz和conda install graphviz都可以解决这个问题。

PIP只得到路径问题与您的相同，conda只得到导入错误。

2017-04-26 02:25:19

尝试conda install graphviz。我也遇到了同样的问题，我在MacOS中使用上述命令解决了它。

2017-09-16 21:58:55

你可以在Anaconda提示符中使用以下命令:

Conda Install python-graphviz

确保在Anaconda提示符中安装pm4py:

PIP安装pm4py