Draw on 2.7 in e-ink raspberry pi hat

hello.py

#!/usr/bin/python
# -*- coding:utf-8 -*-
import sys
import os
picdir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'pic')
libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
if os.path.exists(libdir):
    sys.path.append(libdir)

import logging
from waveshare_epd import epd2in7
import time
from PIL import Image,ImageDraw,ImageFont
import traceback

logging.basicConfig(level=logging.DEBUG)

try:

    logging.info("epd2in7 Demo")   
    epd = epd2in7.EPD()

    
    '''2Gray(Black and white) display'''
    logging.info("init and Clear")
    epd.init()
    epd.Clear(0xFF)
    font24 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 24)
    font18 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 18)
    font35 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 35)
    # Drawing on the Horizontal image
    logging.info("1.Drawing on the Horizontal image...")
    Himage = Image.new('1', (epd.height, epd.width), 255)  # 255: clear the frame
    draw = ImageDraw.Draw(Himage)
    draw.text((10, 0), 'hello world', font = font24, fill = 0)
    draw.text((150, 0), u'¯\_(ツ)_/¯', font = font24, fill = 0)    
    draw.line((20, 50, 70, 100), fill = 0)
    draw.line((70, 50, 20, 100), fill = 0)
    draw.rectangle((20, 50, 70, 100), outline = 0)
    draw.line((165, 50, 165, 100), fill = 0)
    draw.line((140, 75, 190, 75), fill = 0)
    draw.arc((140, 50, 190, 100), 0, 360, fill = 0)
    draw.rectangle((80, 50, 130, 100), fill = 0)
    draw.chord((200, 50, 250, 100), 0, 360, fill = 0)
    epd.display(epd.getbuffer(Himage))
    #time.sleep(2)
    
    logging.info("Clear...")
    #epd.Clear(0xFF)
    logging.info("Goto Sleep...")
    epd.sleep()

    epd.Dev_exit()
        
except IOError as e:
    logging.info(e)
    
except KeyboardInterrupt:    
    logging.info("ctrl + c:")
    epd2in7.epdconfig.module_exit()
    exit()