2021 KAKAO BLIND RECRUITMENT - 신규 아이디 추천

 

import string
import re

def solution(new_id):
    answer = ''
    new_id = new_id.lower()

    symbols = string.punctuation.replace('-','').replace('_','').replace('.','')

    for symbol in symbols:
        new_id = new_id.replace(symbol,"")

    new_id = re.sub('\.\.+','.',new_id)

    new_id = new_id.strip('.')

    if new_id == '':
        new_id = 'a'

    if len(new_id) > 15:
        new_id = new_id[:15]

    new_id = new_id.strip('.')

    while len(new_id) < 3:
        new_id += new_id[-1:]

    return new_id

 

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