A little function to help analyze / debug / understand a json object.

json_leaf_caller.py

def call_on_leaves(json_obj, fn, path=None):
    path = path or []
    if type(json_obj) is dict:
        for k, v in json_obj.items():
            if not call_on_leaves(v, fn, path + [k]):
                return False
    elif type(json_obj) is list:
        for i, v in enumerate(json_obj):
            if not call_on_leaves(v, fn, path + [i]):
                return False
    else:
        return fn(json_obj, path)

This function calls fn() on all the leaf values of json_obj. For each leaf value, fn() receives the value as the first argument, and the path to that leaf as its second argument. A path is a Python list of keys (for dictionaries) and integer indexes (for JSON lists).

If you'd like the walk to continue, return True from fn(); otherwise return False, and the walk will immediately stop.