def get_total_pages(html):
    soup = BeautifulSoup(html, "lxml")
    try:
        pages = soup.find("div", class_="pagination-pages clearfix")
        if pages is not None:
            pages.find_all("a", class_="pagination-page")[-1].get("href")
            total_pages = int(pages.split("=")[1].split("&")[0])
        else:
            catalog = soup.find("div", class_="js-catalog_serp").find_all("div", class_="item_table")
            if catalog is not None:
                total_pages = 1
            else:
                raise Exception
    except Exception as e:
        with open("logs.txt", "a", encoding="utf8") as file:
            file.write(str(e) + " avito get_total_pages\n")
        sys.exit(0)
    return total_pages