Je veux trouver la balise span entre la balise LI et ses attributs, mais pas de chance

Question

Je veux trouver la balise span entre la balise LI et ses attributs. Essayer avec du savon beautful mais pas de chance. Détails de mon code. Est-ce quelqu'un me pointer droit methodlogy

Dans ce code, ma fonction getId doit me revenir id = "0_False-2"

Tout savoir de bonne méthode?

---

from BeautifulSoup import BeautifulSoup as bs 
import re 

html = '<ul>\ 
<li class="line">&nbsp;</li>\ 
<li class="folder-open-last" id="0">\ 
<img style="float: left;" class="trigger" src="/media/images/spacer.gif" border="0">\ 
<span class="text" id="0_False">NOC</span><ul style="display: block;"><li class="line">&nbsp;</li><li class="doc" id="1"><span class="active text" id="0_False-1">PNQAIPMS1</span></li><li class="line">&nbsp;</li><li class="doc-last" id="2"><span class="text" id="0_False-2">PNQAIPMS2</span></li><li class="line-last"></li></ul></li><li class="line-last"></li>\ 
</ul>' 


def getId(html, txt): 
soup = bs(html) 
soup.findAll('ul',recursive=False) 
head = soup.contents[0] 
temp = head 
elements = {} 
while True: 
    # It temp is None that means no HTML tags are available 
    if temp == None: 
    break 
    #print temp 
    if re.search('li', str(temp)) != None: 
    attr = str(temp.attrs).encode('ascii','ignore') 
    attr = attr.replace(' ', '') 
    attr = attr.replace('[', '') 
    attr = attr.replace(']', '') 
    attr = attr.replace(')', '') 
    attr = attr.replace('(', '') 
    attr = attr.replace('u\'', '') 
    attr = attr.replace('\'', '') 
    attr = attr.split(',') 
    span = str(temp.text) 

    if span == txt: 
    return attr[3] 

    temp = temp.next 
    else: 
    temp = temp.next 


id = getId(html,"PNQAIPMS2") 
print "ID = " + id 

Answer 1

Je suis sûr que quelqu'un peut vous montrer le chemin BS, mais voici mon approche. Simplement la vieille manipulation de chaîne de Python.

html = '<ul>\ 
<li class="line">&nbsp;</li>\ 
<li class="folder-open-last" id="0">\ 
<img style="float: left;" class="trigger" src="/media/images/spacer.gif" border="0">\ 
<span class="text" id="0_False">NOC</span><ul style="display: block;"><li class="line">&nbsp;</li><li class="doc" id="1"><span class="active text" id="0_False-1">PNQAIPMS1</span></li><li class="line">&nbsp;</li><li class="doc-last" id="2"><span class="text" id="0_False-2">PNQAIPMS2</span></li><li class="line-last"></li></ul></li><li class="line-last"></li>\ 
</ul>' 


def getId(html, txt): 
    for LI in html.split("</li>"): 
     if "span" in LI: 
      for CL in LI.split("span"): 
        if "class" in CL and "id" in CL and "text" in CL and txt in CL: 
         return CL.split("id=")[-1].split('">')[0].replace('"',"") 

print "id for PNQAIPMS2: " , getId(html,"PNQAIPMS2") 
print "id for NOC: ",getId(html, "NOC") 
print "id for PNQAIPMS1: ",getId(html, "PNQAIPMS1") 

sortie

$ ./python.py 
id for PNQAIPMS2: 0_False-2 
id for NOC: 0_False 
id for PNQAIPMS1: 0_False-1