python将ppt另存为图片

import comtypes.client
import os
import win32
import glob

print('ss111s')

path = r'D:\pythonCode\excel_to_img\report3.pptx'
pa = r"D:\pythonCode\excel_to_img"
'''
fileNames = glob.glob(pa + r'\*')   
for fileName in fileNames:     #将pa 文件夹中的文件删除。
    os.remove( fileName)
'''
powerpoint = comtypes.client.CreateObject("kwpp.Application") #使用wps的接口
#powerpoint.Visible = 1
ppt = powerpoint.Presentations.Open(path)
# 另存为
ppt.SaveAs(pa + '.jpg', 17)
# 退出
ppt.Close()
powerpoint.Quit()