The current implementation uses the out-dated networkx command for connected_component_subgraphs. This needs updating for users, otherwise it won't work with current networkx package.
There is a Centrality library called Centiserve which included a larger variety of centrality measures. Would be fun to see the correlation and accuracy of multiscale-ness of Centrality, as it seemed that Closeness and Degree Centrality is too cross-correlated.