stringify dict keys and values (nodes) recursively (where possible)

stringify_nodes.py

def stringify_nodes(data):
    if isinstance(data, list): 
        return [stringify_nodes(x) for x in data]
    elif isinstance(data, dict):
        dkeys = list(data.keys())
        for i,k in enumerate(dkeys):
            try:
                dkeys[i] = k.decode()
            except:
                pass
        data = dict(zip(dkeys, list(data.values())))
        return {stringify_nodes(key): stringify_nodes(val) for key, val in data.items()}
    elif isinstance(data, bytes):
        try:
            return data.decode()
        except:
            return data
    else:
        return data