Provide accessor function for list of neighbors

[dmiklic]

Currently, there's no clean way of getting a full list of a CASUs neighbors. @rmm-fcul please comment on how you have been handling this so far.

[rmm-fcul]

I presume that you mean at runtime?

• The earlier work depended on labels, which is why the __phys_logi_map exists in casu.Casu.
• The more recent network-based experiments have been a bit lazy and sending the entire nbg file to each casu (because the information isn't available, as you note). Then, it is read using pygraphviz and the net.out_edges(self.name) or net.in_edges(self.name) can be used to identify a given node's neighbourhood.

This is obviously not ideal because it depends on "honest" casus, i.e., that they don't look into other parts of the network. For hand-done code it is ok but for evolved code we would need to be more careful.

[dmiklic]

Ok, I see. The hacky fix I'm using right now is to access the neighbour dictionary directly with c._Casu__neighbors (c is a Casu object).