Only integer scalar arrays can be converted to a scalar index how to resolve

问题

File "C:/Users/Benji/PycharmProjects/Code/ANOTHER22.py", line 57, in generator

x_class[np.array(y)[i]].append(np.array(x)[i])

TypeError: only integer scalar arrays can be converted to a scalar index

x_class = [[] for i in range(len(np.unique(y)))]
    for i in range(len(x)):
        x_class[y[i]].append(x[i])

来源：https://stackoverflow.com/questions/61717955/only-integer-scalar-arrays-can-be-converted-to-a-scalar-index-how-to-resolve