Questions tagged «pydot»

当我使用pydot运行非常简单的代码时 import pydot graph = pydot.Dot(graph_type='graph') for i in range(3): edge = pydot.Edge("king", "lord%d" % i) graph.add_edge(edge) vassal_num = 0 for i in range(3): for j in range(2): edge = pydot.Edge("lord%d" % i, "vassal%d" % vassal_num) graph.add_edge(edge) vassal_num += 1 graph.write_png('example1_graph.png') 它向我显示错误消息： Couldn't import dot_parser, loading of dot files will …

107 python  python-2.7  graphviz  pydot 

我在Windows 8中安装了GraphViz 2.32，并将C：\ Program Files（x86）\ Graphviz2.32 \ bin添加到系统PATH变量中。pydot仍然找不到其可执行文件。 Traceback (most recent call last): File "<pyshell#26>", line 1, in <module> graph.write_png('example1_graph.png') File "build\bdist.win32\egg\pydot.py", line 1809, in <lambda> lambda path, f=frmt, prog=self.prog : self.write(path, format=f, prog=prog)) File "build\bdist.win32\egg\pydot.py", line 1911, in write dot_fd.write(self.create(prog, format)) File "build\bdist.win32\egg\pydot.py", line 1953, in create 'GraphViz\'s executables …

71 graphviz  scikit-learn  pygraphviz  pydot