[Python][프로그래머스][Level2] 이진 변환 반복하기

import re
def solution(s):
    answer=[0,0]
    
    while s!="1":
        answer[1]+=s.count("0")
        s = re.sub("0","",s)
        s = bin(len(s))[2:]
        answer[0]+=1
    
    return answer