How so? Do you mean because it is implicit in it's information rather than explicit? I've been using it a bit for tree structures where an element could be a t

How so? Do you mean because it is implicit in it's information rather than explicit? I've been using it a bit for tree structures where an element could be a tree or a leaf, so isintance(node, tuple) is just the ticket. Seems simpler than creating a Node class, and can easily be dumped to json where I need