From 4fde6385a5b1bef8e758a729414347153dd81708 Mon Sep 17 00:00:00 2001
From: Hiller Liao <hillerliao@163.com>
Date: Sat, 29 Mar 2025 16:05:32 +0800
Subject: [PATCH] refactor(nasdaq): remove caching and improve error handling
 for symbol change history

---
 requirements.txt                       |  1 +
 rsshub/spiders/nasdaq/symbol_change.py | 29 +++++---------------------
 2 files changed, 6 insertions(+), 24 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 1cf4c8d..1472d4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,7 @@ icecream==2.1.1
 idna==3.3
 itsdangerous==2.0.1
 Jinja2==3.0.3
+lxml==4.6.3
 MarkupSafe==2.0.1
 parsel==1.6.0
 pyppeteer==1.0.2
diff --git a/rsshub/spiders/nasdaq/symbol_change.py b/rsshub/spiders/nasdaq/symbol_change.py
index 34a43ea..e0f1133 100644
--- a/rsshub/spiders/nasdaq/symbol_change.py
+++ b/rsshub/spiders/nasdaq/symbol_change.py
@@ -1,13 +1,9 @@
 import json
 import requests
 from rsshub.utils import DEFAULT_HEADERS
-from cachetools import TTLCache
 
 domain = 'https://www.nasdaq.com'
 
-# 缓存数据，设置缓存大小为 1，TTL 为 300 秒（5 分钟）
-cache = TTLCache(maxsize=1, ttl=300)
-
 
 def parse(post):
     item = {}
@@ -18,35 +14,20 @@ def parse(post):
 
 
 def ctx(category=''):
-    if 'cached_data' in cache:
-        return cache['cached_data']  # 返回缓存数据
-
     url = 'https://api.nasdaq.com/api/quote/list-type-extended/symbolchangehistory'
     DEFAULT_HEADERS.update({
         'Referer': 'https://www.nasdaq.com/market-activity/stocks/symbol-change-history',
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
     })
     
-    try:
-        response = requests.get(url, headers=DEFAULT_HEADERS, timeout=10)  # 设置超时时间为 10 秒
-        response.raise_for_status()
-        posts = json.loads(response.text)['data']['symbolChangeHistoryTable']['rows']
-    except requests.exceptions.RequestException as e:
-        return {
-            'title': 'Stock Symbol Change History - Nasdaq',
-            'link': 'https://www.nasdaq.com/market-activity/stocks/symbol-change-history',
-            'description': f'Error fetching data: {e}',
-            'author': 'hillerliao',
-            'items': [],
-        }
-
-    result = {
+    response = requests.get(url, headers=DEFAULT_HEADERS)
+    response.raise_for_status()  # 确保请求成功
+    posts = json.loads(response.text)['data']['symbolChangeHistoryTable']['rows']
+    
+    return {
         'title': 'Stock Symbol Change History - Nasdaq',
         'link': 'https://www.nasdaq.com/market-activity/stocks/symbol-change-history',
         'description': 'View the history of stock symbol changes on Nasdaq. Stay informed on corporate actions, mergers, and rebrandings that result in symbol updates',
         'author': 'hillerliao',
         'items': list(map(parse, posts)),
     }
-
-    cache['cached_data'] = result  # 缓存结果
-    return result