store category and sub category in web scraping

i need to make some web secrabing using python in https://mawdoo3.com/

store the categories and sub-categories in lists and dictionaries.

Crawl at least 10 articles random from each sub categories, focus on the article html element (html tag)

Apply some of the statistics algorithms, such as , histograms for the words for each sub category, top 10 frequent words, visualization, etc.