Enhancement Idea seeds

[thorwhalen]

DAG Factories

Make func_nodes (i.e. dag) factory to allow the user to use (or make) ways to efficiently
express how names and therefore connections should be made.

Connection using type annotations

A function providingFeaturizer as an output can connect to (i.e. feed) functions that take Featurizers as inputs

structure through nested lists

[..., [a, b, c],...] meaning we want a -> b -> c

from python code

Make a graphviz.Digraph object based on code (string or function's body)

ch_names

Method to change the names (roots, inner, leafs, funcs)

order

Method to make order compliant with some given order-determining list.
Ordering roots and leafs should make inputs and outputs as wished, but doesn't
carry on to sub-DAGs. Do we need more control on topological sort?

request-triggered data access

obj.prop asks obj._dag for the sub-dag to compute
said prop and if a maintained obj._scope (the cache) contains sufficient data,
it computes it (and caches it) with minimum computional path.

Basically the pattern I often use lazyprop for.