data,label=read_img(path)报错

def read_img(path):

cate=[path+'/'+x for x in os.listdir(path) if os.path.isdir(path+'/'+x)]

imgs=[]

labels=[]

for idx,folder in enumerate(cate):

    for im in glob.glob(folder+'/*.png'):

        print('reading the images:%s'%(im))

        img=io.imread(im)

        img=transform.resize(img,(w,h,c))

        imgs.append(img)

        labels.append(idx)

return np.asarray(imgs,np.float32),np.asarray(labels,np.int32)
data,label=read_img(path)

Traceback (most recent call last):
File "D:\anaconda3\anaconda file\CnnFaces\train.py", line 64, in
data,label=read_img(path)
File "D:\anaconda3\anaconda file\CnnFaces\train.py", line 60, in read_img
return np.asarray(imgs,np.float32),np.asarray(labels,np.int32)
有两行报错，为什么