python怎么打开mat文件？

import scipy.io as scio

import pandas as pd

data_path="train.mat"

#Method 1

data = scio.loadmat(data_path)

data_train_label=data_train.get('label')#取出字典里的label

data_train_data=data_train.get('data')#取出字典里的data

import mat4py

mat4py.loadmat(mat_path)

import h5py

data = h5py.File('data.mat')