Re: [igraph] Union of two graphs keeping attributes

[Tamás Nepusz]

Hi,

> regarding a question which was asked before in this ML by Gábor Tóth,
> you can find my solution here, which works, but is still too slow for
> me:
> 
> http://stackoverflow.com/questions/16928593/igraph-python-union-preserving-attributes
> 
> Hope someone can find a way to speed it up.
This is probably as good as it gets using pure Python. Have you tried to 
measure which part is the slowest in your case? Is it the addition of edges, or 
the part where the vertex/edge attributes are copied?

-- 
T.