get full path

a.rb

import os
data_root = '/home/pt/Dropbox/mxnet/example/yelp/'
def load_info():
    full_path = []
    for path, dir, files in os.walk(data_root+'/train_photos'):
        for f in files:
            #path_to_image.append(f)
            #dir.append(f)
            name = os.path.join(dir, f)
            full_path.append(name)
    return full_path