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问题是:我在 Windows7 上,并且我已经安装了 pygraphviz 库和 Graphviz 应用程序(Graphviz 应用程序位于“C:\Program Files”中)。当我在 python 上运行我的程序时,我收到以下消息:

g.draw(filename,prog='dot')
  File "C:\Python27\lib\site-packages\pygraphviz\agraph.py", line 1418, in draw
    data=self._run_prog(prog,args)
  File "C:\Python27\lib\site-packages\pygraphviz\agraph.py", line 1248, in _run_prog
    runprog=self._get_prog(prog)
  File "C:\Python27\lib\site-packages\pygraphviz\agraph.py", line 1236, in _get_prog
    raise ValueError("Program %s not found in path."%prog) 
ValueError: Program dot not found in path.

我怎么解决这个问题?

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1 回答 1

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您需要将带有 graphviz 二进制文件的目录添加到PATH.

于 2013-02-21T23:55:57.817 回答