Need Help with the BeautifulSoup problem, please

[seaspeak at gmail.com]

seas... at gmail.com於 2013年12月16日星期一UTC+8下午2時41分08秒寫道：
> I need to replace all tag <b> with <span> after ■. But the result from below is '■   <span style="REPLACE">D</span> / <font></font>'
> 
> Can you explain what I did wrong, please.
> 
> 
> 
>     s = '■<b>A</b> <b>B</b> <b>C</b> <b>D</b> / <font></font>'
> 
>     soup = BeautifulSoup(s)
> 
>     for i in soup.find_all(text='■'):
> 
>         tag = soup.new_tag('span')
> 
>         tag['style'] = 'REPLACE'
> 
>         for ii in i.find_next_siblings():
> 
>             if ii.name=='font' or str(ii).lstrip('')[0:1]=='/':
> 
>                 break
> 
>             else:
> 
>                 if ii.name=='b':
> 
>                     tag.string=ii.string
> 
>                     print(ii.replace_with(tag))
> 
>     print(soup)

the point is the result seems wrong. I don't know if that is my problem.
I simplify the code to emphasize the problem, there's no way an editor can do what I wanna do.