Re: [igraph] RuntimeWarning when reading GraphML

[Tamas Nepusz]

> Nothing is wrong with it. I was taken back by the fact that an ID  
> attribute was written as a data element when I didn't specify/change  
> them myself. It just seemed inconsistent and I was confused by that.
I think your problem appears only if you read a third-party GraphML  
file into igraph and then save it without any changes. The resulting  
GraphML file will have an additional ID attribute compared to the  
original one -- and yes, I don't really think this is a desired  
behaviour.

--
Tamas