我下载了Graphviz 2.38
MSI版本,安装在文件夹C:\Python34
下,然后运行pip install 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时,在filename=dot.render(filename='test')
行中,我收到一条消息
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
,然后重新安装和pip安装,但什么都不行。
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?