rollout.py

# Simple python function to flatten a dict with a regular structure into a list of dicts
# This is essentially the inverse of a d3 roll-up, where we know that the deepest leaves will contain all necessary keys

def rollout(d, current_level=0, depth_to_flatten=0):
    items = []
    for k, v in d.items():
        if current_level == depth_to_flatten:
            if v == {}:
                pass
            else:
              items.append(v)
        else:
            l = current_level + 1
            items.extend(flatten_to_depth(v, l, depth_to_flatten))
    return items