# coding:utf-8 CHAR_VECTOR = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-~`<>'.:;^/|!?$%#@&*()[]{}_+=,\\\"" NUM_CLASSES = len(CHAR_VECTOR) + 1