How to find the maximum “depth” of a python dictionary or JSON object?

Question

I have a json string and I want to know what its maximum depth is. By depth I mean the number of embedded keys. So if one key as 7 \"children\" and know other key had that

Answer 1

def depth(d):
    if hasattr(d, "values"):
        return 1 + max(map(depth, d.values()))
    if hasattr(d, "__len__") and not hasattr(d, "lower"):
        return 1 + max(map(depth, d))
    return 0