Dynamically build Tree items binding from tag path

Something like this, perhaps?

path = "Treatment/3KNG/200/100_01_Basin1_Mixer1"

parent = []
ret = parent
for part in path.split("/"):
    item = {
        "label": part,
        "expanded": True,
        "items": parent
    }
    parent.append(item)
    parent = []

return ret