问题
the problem is: I am on Windows7 and I've installed pygraphviz library and Graphviz application(Graphviz application is in "C:\Program Files"). When I run my program on python I have the following message:
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.
How can I solve this problem?
回答1:
You need to add the directory with graphviz binaries to PATH.
来源：https://stackoverflow.com/questions/15014465/pygraphviz-valueerror-program-dot-not-found-in-path