dict list storage keys flattener and getter

def recur_getter(obj,key):
    v = obj
    for k in key:
        v = v[k]
    return v

def flat_keys_builder(obj):
    keys = []
    for k in obj.keys():
        keys.append([k])
    flag = True
    final_keys = []
    while flag:
        flag = False
        new_keys = []
        for key in keys:
            val = recur_getter(obj,key)
            if isinstance(val,list):
                for k in range(len(val)):
                    new_key = key.copy()
                    new_key.append(k)
                    new_keys.append(new_key)
                    flag = True
                continue
            if isinstance(val,dict):
                for k in val.keys():
                    new_key = key.copy()
                    new_key.append(k)
                    new_keys.append(new_key)
                    flag = True
                continue
            #else
            final_keys.append(key)
        keys = new_keys
    return final_keys