*Here is a minimal example :*
from graph_tool.all import *
g=load_graph('test.xml')
_vertexIds = g.vertex_properties["_graphml_vertex_id"]
_edgeIds = g.edge_properties["_graphml_edge_id"]*test.xml:* <?xml version="1.0" encoding="UTF-8"?> <graphml xmlns="http://graphml.graphdrawing.org/xmlns"; xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation=" http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd";> <key id="o" for="node" attr.name="origin" attr.type="double"/> <key id="d" for="node" attr.name="destination" attr.type="double"/> <key id="w" for="edge" attr.name="weight" attr.type="double"/> <key id="n" for="edge" attr.name="name" attr.type="int"/> <graph id="G" edgedefault="directed"> <node id="65091"> <data key="o">0.0</data> <data key="d">6.76759405264e-06</data> </node> <edge id="1" source="65091" target="65221"> <data key="w">192.49624317</data> <data key="n">1</data> </edge> <node id="16071"> <data key="o">5.41539461304e-05</data> <data key="d">2.03027821579e-05</data> </node> <edge id="2" source="16071" target="16081"> <data key="w">269.676249521</data> <data key="n">2</data> </edge> <edge id="3" source="16071" target="16061"> <data key="w">299.894548773</data> <data key="n">3</data> </edge> </graph> </graphml> *The error message:* Traceback (most recent call last): File "test.py", line 4, in <module> _edgeIds = g.edge_properties["_graphml_edge_id"] File "/usr/lib/python2.7/site-packages/graph_tool/__init__.py", line 995, in __getitem__ val = self.get_func(self.g, key) File "/usr/lib/python2.7/site-packages/graph_tool/__init__.py", line 1469, in <lambda> lambda g, k: g.__properties[("e", k)], KeyError: ('e', '_graphml_edge_id') On 29 May 2014 11:32, Tiago de Paula Peixoto <[email protected]> wrote: > On 05/29/2014 03:43 PM, Flavien Lambert wrote: > > Hi, is there a way to get the key 'id' of edges in the spirit of the > vertices one like the following? _vertexIds works but not _edgeIds. > > > > g=load_graph(dataFolder+'networkFullyConnected.xml') > > _vertexIds = g.vertex_properties["_graphml_vertex_id"] > > _edgeIds = g.edge_properties["_graphml_edge_id"] > > The edge property will be there if the edge labeling in the file is not > canonical. I.e., if in the beginning of the file you have something like > > <graph id="G" edgedefault="undirected" parse.nodeids="canonical" > parse.edgeids="canonical" parse.order="nodesfirst"> > > that means that both the edge and node ids are canonical, and in that > case the properties will not be available. > > I've tested with non-canonical labellings and I see both properties. If > you see otherwise, please provide a short example. > > Best, > Tiago > > -- > Tiago de Paula Peixoto <[email protected]> > > > _______________________________________________ > graph-tool mailing list > [email protected] > http://lists.skewed.de/mailman/listinfo/graph-tool > >
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