def usual_dict(dict_data):
    newdata = {}
    for k, v in dict_data:
        if newdata in k:
            newdata[k].append(v)
        else:
            newdata[k] = [v]
    return newdata
dataset/ETHPy150Open bt3gl/Python-and-Algorithms-and-Data-Structures/src/USEFUL/basic_examples/example_setdefault.py/usual_dict/swapped operands of `in`