"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

在Windows环境下，使用巧克力安装，它将确保环境变量设置正确。

choco install graphviz

2021-05-28 18:57:53

其他回答

步骤1:安装Graphviz二进制文件

窗口:

从http://www.graphviz.org/download/下载Graphviz 将以下内容添加到PATH环境变量(提到已安装的graphviz版本): C:\Program Files (x86)\ Graphviz2.38\bin C:\Program Files (x86)\ Graphviz2.38\bin\dot.exe 关闭任何打开的Juypter笔记本电脑和命令提示符重新启动Jupyter / cmd提示符并测试

Linux:

Sudo apt-get update Sudo apt-get安装graphviz 或者从http://www.graphviz.org/download/手动构建

步骤2:安装python的graphviz模块

皮普:

PIP安装graphviz

第二:

康达安装图形可视化

2019-05-19 02:58:06

#Write this on anaconda prompt in admin mode
conda install -c anaconda 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

#check dot -v in window's cmd prompt
C:\WINDOWS\system32>dot -V
dot - graphviz version 2.38.0 (20140413.2041)
(this means graphviz installed successfully)

#Add path to sys and user eve variables
PATH
C:\Anaconda3\pkgs\graphviz-2.38-hfd603c8_2\Library\bin
(search bin folder of graphviz and then copy n paste path in env variables)

#Re-run all cmds in jyupter notebook
#if error occurs (less chances)
#then 
#Restart anaconda and again run all cmds in jyupter notebook
eg.
import graphviz as gp
with open("tree.dot") as f:
    dot_read=f.read()
display(gp.Source(dot_read))

2020-05-15 19:01:06

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

最后，你必须尝试使用Anaconda提示符运行你的python代码。

2022-03-01 11:08:43

这个应该可以解决MacOS上的问题: