[igraph] Graph attributes other than via graph_attrs

[Johannes Reichold]

Dear iGraphers,

I have searched the archives but could not find out whether it is 
possible to attach graph attributes other than at the time of 
graph-creation via graph_attrs=<dictionary of attributes>. I have tried 
(crudely) to do something like this:
import igraph
g = igraph.Graph()
g.myAttribute = <some fancy attribute>

which works perfectly. Only, whenever I try to copy or pickle the graph, 
these attributes get stripped. Usage of graph_attrs does not suffer from 
this problem but is less flexible, as you need to define the attributes 
at the time of initialization. Am I missing something obvious here? 
Please help me out.
Best,
Johannes