for bb in aa:
    try:
        cc = bb.find_all("b")[0].text
    except:
        cc = None

    try:
        dd = bb.find_all("span")[1].text
    except:
        dd = None

    try:
        ee = bb.find_all("span")[2].text
    except:
        ee = None

# if kontrolü
if not ee is None:

# if control
if not (ee is None):