findKey better

def findKey(text):
    matched = []
    allkeys = []
    matchedkeys=[]

    SixteenPattern = re.compile('[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]')
    FifteenPattern = re.compile('[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]')
    TwentyfivePattern = re.compile('[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]\-[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9][A-Za-z0-9]')
    for x in SixteenPattern.findAll(text)
        allkeys.append(x)

    for x in FifteenPattern.findAll(text)
        allkeys.append(x)

    for x in TwentyfivePattern.findAll(text)
        allkeys.append(x)

    for x in allkeys:
        chunk = x.split("-")
        if len(chunk) == 5 or len(chunk) == 3:
            if not "*" in x and not "@" in x:
                matchedkeys.append(x)

    return matchedkeys