运行以下 Python 代码后:
import pygraphviz as pgv
G=pgv.AGraph()
G.add_edge(1,2)
G.add_edge(2,3)
G.add_edge(3,4)
G.layout(prog='dot')
G.draw('1.png')
我在 IDLE 中得到了这个跟踪:
File "<pyshell#7>", line 1, in <module>
G.layout(prog='dot')
File "C:\Python27\lib\site-packages\pygraphviz\agraph.py", line 1302, in layout
data=self._run_prog(prog,' '.join([args,"-T",fmt]))
File "C:\Python27\lib\site-packages\pygraphviz\agraph.py", line 1275, in _run_prog
raise IOError("".join(errors))
IOError: 'C:\Program' is not recognized as an internal or external command,
operable program or batch file.
请帮忙,我正在做一个课程项目。信息:正确安装了 Graphviz