我正在尝试使用networkX(以gexf格式使用)自定义图形。但是我无法设置节点的形状。在这里使用示例import sysimport urllib2import networkx as nxdata = urllib2.urlopen('http://gexf.net/data/viz.gexf')G = nx.read_gexf(data)print G.node['a']G.node['a']['viz']['position']['x']=10G.node['a']['viz']['position']['y']=20# now my addition G.node['a']["viz"]['shape'] = 'disc'print G.node['a'] this seems to work但我不能写文件nx.write_gexf(G,sys.stdout)错误是:# AttributeError: 'str' object has no attribute 'get'我想念什么吗?
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