randomid

    while True:
        generated = ''
        l = []
        l.append(chr(random.randint(33,47)))
        l.append(chr(random.randint(33,47)))
        l.append(chr(random.randint(65,90)))
        l.append(chr(random.randint(65,90)))
        l.append(chr(random.randint(97,122)))
        l.append(chr(random.randint(97,122)))
        l.append(chr(random.randint(48,57)))
        l.append(chr(random.randint(48,57)))
        random.shuffle(l)

        for i in range(len(l)):
            generated += l[i]

        for j in range(len(table)):
            if table[j][0] == generated:
                go = False
                break
        else:
            go = True

        if go:
            break
    return generated