fixed #58: session 추가

[tasoo-oos]

🛠️ PR Summary

🌟 요약

어떤 것이 변경되었나요? 간략히 설명해주세요.

API 서버에 request를 보낼 때 먼저 세션에 연결합니다.

📊 주요 변경 사항

주요 변경 사항을 적어주세요.

• PyKis 클래스의 각 인스턴스는 이제 실전/모의투자용 세션 두 개씩을 가지고, 할당 해제될 때 세션도 같이 사라집니다.

🎯 목적 및 영향

• 목적: 왜 이 PR이 필요한가요?

  • 의미없는 소켓 점유를 줄이고, 세션을 요청별로 열지 않고 재사용하므로 네트워크 리소스를 덜 사용합니다.

• 영향: 이 변경 사항이 어떤 영향을 미치나요?

  • 불필요한 연결 수립/해제 감소
  • 연결 풀링을 통한 지연 시간 감소
  • 메모리 사용량 최적화
  • TCP 소켓 관리 효율화

테스트

import sys
sys.path.append('/home/tasoo1118/projects/python_projects/python-kis')  # kis 패키지의 경로를 추가합니다.

import time
import psutil
import os

from pykis import PyKis
from dotenv import dotenv_values
from pykrx import stock
import logging

logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)

config = dotenv_values(".env")  # 개인정보를 저장한 .env 파일을 읽어옵니다.

kis = PyKis(
    id=config["KRX_HTS_ID"],
    account=config["KRX_ACCOUNT_NUMBER"],
    appkey=config["KRX_APP_KEY"],
    secretkey=config["KRX_APP_SECRET"],
    keep_token=True
)

current_process = psutil.Process(os.getpid())

tickers = (
        stock.get_market_ticker_list(market="KOSPI") +
        stock.get_market_ticker_list(market="KOSDAQ") +
        stock.get_etf_ticker_list()
)  # 코스피, 코스닥, ETF 종목을 모두 가져옵니다. (총 3,000여개)

for i, ticker in enumerate(tickers):
    asd = kis.stock(symbol=ticker, market="KRX")
    quote = asd.quote()
    print(f"{i}: {quote.name}")

    print(f"Open sockets: {len(current_process.net_connections())}")
    print()
    time.sleep(1)

DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 506
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 None
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 506
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 None
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 506
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 None
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 24406
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): data.krx.co.kr:80
DEBUG:urllib3.connectionpool:http://data.krx.co.kr:80 "POST /comm/bldAttendant/getJsonData.cmd HTTP/11" 200 None
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): openapi.koreainvestment.com:9443
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=095570 HTTP/11" 200 1885
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/search-info?PDNO=095570&PRDT_TYPE_CD=300 HTTP/11" 200 703
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=095570 HTTP/11" 200 1885
0: AJ네트웍스
Open sockets: 1

DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=006840 HTTP/11" 200 1937
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/search-info?PDNO=006840&PRDT_TYPE_CD=300 HTTP/11" 200 680
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=006840 HTTP/11" 200 1937
1: AK홀딩스
Open sockets: 1

DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=027410 HTTP/11" 200 1880
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/search-info?PDNO=027410&PRDT_TYPE_CD=300 HTTP/11" 200 628
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=027410 HTTP/11" 200 1880
2: BGF
Open sockets: 1

DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=282330 HTTP/11" 200 1931
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/search-info?PDNO=282330&PRDT_TYPE_CD=300 HTTP/11" 200 676
DEBUG:urllib3.connectionpool:https://openapi.koreainvestment.com:9443 "GET /uapi/domestic-stock/v1/quotations/inquire-price?FID_COND_MRKT_DIV_CODE=J&FID_INPUT_ISCD=282330 HTTP/11" 200 1931
3: BGF리테일
Open sockets: 1

...