auto: 일일 백업 2026-06-19 02:00

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

agents/stock/workspace/scripts/kiwoom_client.py

@@ -13,9 +13,12 @@
 from __future__ import annotations
 
 import json
+import http.client
+import socket
 import sys
 import threading
 import time
+import urllib.error
 import urllib.request
 from datetime import datetime, timezone, timedelta
 from pathlib import Path
@@ -48,6 +51,8 @@ TR_MINUTE_CHART = 'ka10080'  # 주식분봉차트조회 (1/3/5/10/15/30/45/60분
 TR_INVESTOR_FLOW = 'ka10059' # 종목별투자자기관별 (외국인·기관 일별 매매)
 
 STOCK_CODES_CACHE = STATE_DIR / 'stock_codes.json'
+_HTTP_TRANSIENT_RETRIES = 2
+_HTTP_TRANSIENT_BACKOFF_SEC = 0.8
 
 
 def load_credentials() -> dict:
@@ -86,13 +91,28 @@ def _http_post_full(url: str, body: dict, headers: dict | None = None) -> tuple[
     if headers:
         h.update(headers)
     req = urllib.request.Request(url, data=data, method='POST', headers=h)
-    try:
-        with urllib.request.urlopen(req, timeout=15) as r:
-            resp_headers = {k.lower(): v for k, v in r.headers.items()}
-            return json.loads(r.read().decode('utf-8', 'ignore')), resp_headers
-    except urllib.error.HTTPError as e:
-        body_text = e.read().decode('utf-8', 'ignore')
-        raise RuntimeError(f'HTTP {e.code} {url}: {body_text}') from e
+    transient_errors = (
+        ConnectionResetError,
+        TimeoutError,
+        socket.timeout,
+        urllib.error.URLError,
+        http.client.RemoteDisconnected,
+        http.client.IncompleteRead,
+    )
+    for attempt in range(_HTTP_TRANSIENT_RETRIES + 1):
+        try:
+            with urllib.request.urlopen(req, timeout=15) as r:
+                resp_headers = {k.lower(): v for k, v in r.headers.items()}
+                return json.loads(r.read().decode('utf-8', 'ignore')), resp_headers
+        except urllib.error.HTTPError as e:
+            body_text = e.read().decode('utf-8', 'ignore')
+            raise RuntimeError(f'HTTP {e.code} {url}: {body_text}') from e
+        except transient_errors:
+            if attempt >= _HTTP_TRANSIENT_RETRIES:
+                raise
+            time.sleep(_HTTP_TRANSIENT_BACKOFF_SEC * (attempt + 1))
+
+    raise RuntimeError(f'HTTP POST failed unexpectedly: {url}')
 
 
 def _token_cache_path(label: str) -> Path: