type: 收窄豆鱼服务层类型

core/douyu/proxy_fetcher.py

@@ -10,8 +10,6 @@
 
 import threading
 import time
-from typing import Optional
-
 from loguru import logger
 
 from .proxy_resolver import ProxyResolver
@@ -28,8 +26,8 @@ class ProxyFetcher:
         self,
         api_url: str,
         whitelist_platform: str = "xiequ",
-        whitelist_credentials: dict = None,
-        stop_event: Optional[threading.Event] = None,
+        whitelist_credentials: dict | None = None,
+        stop_event: threading.Event | None = None,
     ):
         self.api_url = api_url
         self.stop_event = stop_event
@@ -66,7 +64,7 @@ class ProxyFetcher:
             return True, f"出口 IP {local_ip} 已同步: {msg}"
         return False, f"出口 IP {local_ip} 同步失败: {msg}"
 
-    def fetch_new_proxy(self, max_attempts: int = 3) -> Optional[str]:
+    def fetch_new_proxy(self, max_attempts: int = 3) -> str | None:
         """从代理 API 获取 1 个可用代理，失败返回 None。
 
         不主动检测/同步本地出口 IP；如果代理 API 返回"白名单错误"，
@@ -115,7 +113,7 @@ class ProxyFetcher:
 def get_proxy_fetcher(
     api_url: str,
     whitelist_platform: str = "xiequ",
-    whitelist_credentials: dict = None,
+    whitelist_credentials: dict | None = None,
 ) -> ProxyFetcher:
     """获取代理获取器实例。"""
     return ProxyFetcher(