a.py

filename = os.path.join(data_dir, trainfilename)
row_img = [] 
    with open(filename) as fid:  
        content = fid.read()  
    content = content.split('\n')  
    content = content[:-1]
    for i in content:
        img = skimage.io.imread(fname, as_grey=False, plugin=None, flatten=None, **plugin_args)
        row_img.append(img)
        
        
https://blog.csdn.net/zengxyuyu/article/details/53289906