python html таблица в json

s = "<table><tr><td>Num of something 1</td><td>4532</td></tr><tr><td>Num of something 2</td><td>0</td></tr><tr><td>Num of something 3</td><td>8</td></tr></table>"
soup = bs4.BeautifulSoup(s, 'html.parser')
for table in bf4.find('table').find_all('tr'):
    rows = [row.text for row in table.find_all('td')]
    data.append(rows)
print (json.dumps(data))