How to read individual slide from ppt using tika package in python? - python-3.x

I want to compare data in two pptx file and show the differences if any using python.
I have tried with below code, but it is giving all content in single file. No way to segregate data based on slides.
I am able to read all content of pptx using tika but I need slide wise content to compare with other pptx file.
from tika import parser
parsed = parser.from_file('act.pptx')
act =parsed['content']
act=act.strip().replace('\n',' ')
Expected result is store each slide one text file.
Actual result is I am getting all slides data into one text file.

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