Script that cleans up html descriptions

I will order the preparation of a script (python,php + Mysql), which will prepare(clean from html) descriptions for listing on Allegro ( via API)

The input is the description column, the script should save the "cleaned" descriptions in prepared_description.

From all the formatting are to remain only allowed on allegro 'h1', 'h2', 'p', 'ul', 'ol', 'li'. Of course, we also remove links, images, etc.

I would preferably use a proven solution. The determinant of the script's correctness is the Allegro validation for the product (https://api.allegro.pl/sale/product-offers/{$auctionId}).

I'm providing the contractor with the tables in CSV/MySQL dump and would like to get a working script back - all the sandbox/testing/validation on the contractor's side :)