Задача 6 (4 балла)
def get_languages_hse(last_name):
    def get_teacher_url(last_name):
        url = 'https://www.hse.ru/org/hse/ouk/hmat/persons'
        import bs4
        import urllib.request

        try:
            f = urllib.request.urlopen(url)
            soup = bs4.BeautifulSoup(f.read(), "html.parser")
            s = None
            for a in soup.find_all(['a'], {'class': 'fa-person__name'}):
                if last_name in a.text:
                    return 'http://' + a['href'][2:]
        except:
            return None
    # coding=utf8
    url = get_teacher_url(last_name)

    import bs4
    import urllib.request
    res = []

    try:
        f = urllib.request.urlopen(url)
        soup = bs4.BeautifulSoup(f.read(), "html.parser")
        for a in soup.find_all(['dl'],{'class':'main-list large main-list-language-knowledge-level'}):
            for r in a.find_all('dd'):
                res.append(r.text)
            return res
    except:
        pass