如何从边缘列表创建python-igraph图

Question

I have a vertices list as (vertexID) and a edge list as (srcID, dstID). I want to create a igraph Graph out of these nodes and edges. The ids are OSM Node IDs and they do not start from zero and are not sequential in most cases. Also, I am dealing with hundreds and thousands of nodes. Hence to make the graph creation fast I tried following code:

gr = Graph()
gr.add_vertices(vertexList)
gr.add_edges(edgeList)

But I get following error:

OverflowError: long integer too large for conversion to C int

I think because my Ids are of type long I get this error. Is there any way to get around this error without sacrificing the speed of graph creation?

Answer 1

刚才有同样的问题-我将列表转换成字符串，整数，然后问题解决了-尽管我还没有创建另一个问题。