for trs in doc.cssselect('table tr'):
        for tr in trs:
             tds = tr.cssselect('td')

db = MySQLdb.connect(host="localhost", user="root", passwd="111111", db="base", charset='utf8')
if db :
    print "db is ok!"
    cursor = db.cursor()
for trs in doc.cssselect('table tr'):
    for tr in trs:
             tds = tr.cssselect('td')
             i+=1
             l[i]=tds[0].text
             if i=7:   i=0
        
   sql='INSERT INTO T1(num, name, val, dom,kod,sin,rar)' VALUES (%s,%s,%s,%s,%s,%s,%s)'
   cursor.execute(sql,(l[1], l[2], l[3], l[4],l[5],l[6],l[7]))

>>> s=[1,2,3]
>>> t="%s"*len(s)
>>> d=t % tuple(s)
>>> d
'123'