첫글 에서 발급받은 APP key, APP Secret 을 써야한다. # requests 모듈 설치 필요 (pip install requests) import requests import json url = 'https://openapi.koreainvestment.com:9443/oauth2/tokenP' body = { "grant_type": "client_credentials", "appkey": "", "appsecret": "", } headers = { } res = requests.post(url, data=json.dumps(body), headers=headers) rescode = res.status_code if rescode == 200: print(res.headers) prin..