python - beautifulsoup4: how to retrieve a list of the class name of specific tag

Question

I get that from beautifulsoup4:

<tr class="Details"> <td class=" s-12-to-15 ">ABC</td> <td class="s-15-to-18 ">DEF</td> <td class=" s-18-to-21 ">GHI</td></tr>

how can I get:

s-12-to-15 ABC
s-15-to-18 DEF
s-18-to-21 GHI

I looked into bf4 documentation and several stack questions about retrieving class name but without success. I can't the way to retrieve these class. (I know I could parse the string to get the result but I'm interested to learn about bf4).

Answer 1

for s in soup.find_all('td'):
    print ''.join(s['class']).strip(), s.text