Python - AttributeError：'dict'对象没有属性'train'

Question

我有这个错误：属性错误："dict"对象在下面的代码中没有属性"train"：

def main(unused_argv):
# Load training and eval data
image_ind = 10
svhn = sio.loadmat('train_32x32.mat')
# access to the dict
x_train = svhn['X']
y_train = svhn['y']
# show sample
plt.imshow(x_train[:,:,:,image_ind])
print(y_train[image_ind])
train_data = svhn.train.images  # Returns np.array
train_labels = np.asarray(svhn.train.labels, dtype=np.int32)
eval_data = sio.loadmat('test_32x32.mat')
# access to the dict
x_test = eval_data['X']
y_test = eval_data['y']
eval_dataSVHN = eval_data.test.images  # Returns np.array
eval_labels = np.asarray(eval_data.test.labels, dtype=np.int32)

执行时，我收到错误：

train_data = svhn.train.images  # Returns np.array
AttributeError: 'dict' object has no attribute 'train'

我该如何解决这个问题？

Answer 1

我没有看到任何错误...scipy.io.loadmat返回字典，基本字典没有"train"属性。如果 matlab 文件中有一个 "train" 变量，那么它将被存储为字典键，因此您可以svhn['train']访问它(而不是svhn.train(。