CDlib exposes a few utilities to manipulate graph objects generated with igraph and networkx.
cdlib.utils
Transform igraph to/from networkx objects.
convert_graph_formats
Remapping of graph nodes. It is often a good idea - to limit the memory usage - to use progressive integers as node labels. CDlib automatically - and transparently - makes the conversion for the user, however, this step can be costly: for such reason the library also exposes facilities to directly pre/post process the network/community data.
nx_node_integer_mapping remap_node_communities