https://medium.com/@kam6512/%EA%B0%9C%EB%B0%9C%EC%9A%94%EC%B2%AD-%EC%82%AC%EC%97%85%EC%9E%90%EB%93%B1%EB%A1%9D%EC%83%81%ED%83%9C%EC%A1%B0%ED%9A%8C-%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%A8-6c0870b6a4b7

CRN with output.py

import sys
import requests
import xml.etree.ElementTree as ElementTree

PostUrl = "https://teht.hometax.go.kr/wqAction.do?actionId=ATTABZAA001R08&screenId=UTEABAAA13&popupYn=false&realScreenId="
XmlRaw = "<map id=\"ATTABZAA001R08\"><pubcUserNo/><mobYn>N</mobYn><inqrTrgtClCd>1</inqrTrgtClCd><txprDscmNo>\{CRN\}</txprDscmNo><dongCode>15</dongCode><psbSearch>Y</psbSearch><map id=\"userReqInfoVO\"/></map>"


def call(crn):
    res = requests.post(PostUrl, data=XmlRaw.replace("\{CRN\}", crn), headers={'Content-Type': 'text/xml'})
    xml = ElementTree.fromstring(res.text).findtext("trtCntn")
    result = crn + "\t" + xml.replace("\n","").replace("\t", " ") + "\n"
    return result

inputs = open('./list.txt', 'r', encoding='UTF8')
result = ''
for line in inputs:
    result += call(line.strip())
    
inputs.close()
outputs = open('./output.txt', 'w', encoding='UTF8')
outputs.write(result)
outputs.close()