feat: integrate akshare news data source and implement automatic vendor routing for A-share tickers

tradingagents/dataflows/akshare_news.py

@@ -0,0 +1,50 @@
+# tradingagents/dataflows/akshare_news.py
+import akshare as ak
+from datetime import datetime
+import pandas as pd
+
+def get_news_akshare(
+    ticker: str,
+    start_date: str,
+    end_date: str,
+) -> str:
+    """
+    使用 AkShare 获取 A 股特定股票的新闻 (东方财富数据源)
+    """
+    # 1. A股代码清洗: yfinance 习惯用 '600519.SS', akshare 通常只需要 '600519'
+    clean_ticker = ticker.split('.')[0] 
+    if not clean_ticker.isdigit():
+        return f"Invalid A-share ticker format: {ticker}"
+
+    try:
+        # 获取个股新闻 (东方财富接口)
+        news_df = ak.stock_news_em(symbol=clean_ticker)
+        
+        if news_df.empty:
+            return f"No news found for {ticker}"
+
+        # 将发布时间转换为 datetime 进行过滤
+        news_df['发布时间'] = pd.to_datetime(news_df['发布时间'])
+        start_dt = datetime.strptime(start_date, "%Y-%m-%d")
+        end_dt = datetime.strptime(end_date, "%Y-%m-%d")
+
+        # 过滤日期区间
+        mask = (news_df['发布时间'] >= start_dt) & (news_df['发布时间'] <= end_dt)
+        filtered_news = news_df.loc[mask]
+
+        if filtered_news.empty:
+            return f"No news found for {ticker} between {start_date} and {end_date}"
+
+        # 格式化输出为大模型易读的 Markdown 格式
+        news_str = ""
+        # 限制返回条数，避免 token 溢出
+        for _, row in filtered_news.head(20).iterrows():
+            pub_time = row['发布时间'].strftime('%Y-%m-%d %H:%M:%S')
+            news_str += f"### {row['新闻标题']} (时间: {pub_time})\n"
+            news_str += f"{row['新闻内容']}\n"
+            news_str += f"来源: {row['文章来源']} | Link: {row['新闻链接']}\n\n"
+
+        return f"## {ticker} A股新闻, 从 {start_date} 到 {end_date}:\n\n{news_str}"
+
+    except Exception as e:
+        return f"Error fetching A-share news for {ticker} via AkShare: {str(e)}"

tradingagents/dataflows/interface.py

@@ -11,6 +11,7 @@ from .y_finance import (
     get_insider_transactions as get_yfinance_insider_transactions,
 )
 from .yfinance_news import get_news_yfinance, get_global_news_yfinance
+from .akshare_news import get_news_akshare
 from .alpha_vantage import (
     get_stock as get_alpha_vantage_stock,
     get_indicator as get_alpha_vantage_indicator,
@@ -63,6 +64,7 @@ TOOLS_CATEGORIES = {
 VENDOR_LIST = [
     "yfinance",
     "alpha_vantage",
+    "akshare",  # 新增 A股 数据源
 ]
 
 # Mapping of methods to their vendor-specific implementations
@@ -98,6 +100,7 @@ VENDOR_METHODS = {
     "get_news": {
         "alpha_vantage": get_alpha_vantage_news,
         "yfinance": get_news_yfinance,
+        "akshare": get_news_akshare,  # 新增映射
     },
     "get_global_news": {
         "yfinance": get_global_news_yfinance,
@@ -134,8 +137,18 @@ def get_vendor(category: str, method: str = None) -> str:
 def route_to_vendor(method: str, *args, **kwargs):
     """Route method calls to appropriate vendor implementation with fallback support."""
     category = get_category_for_method(method)
-    vendor_config = get_vendor(category, method)
-    primary_vendors = [v.strip() for v in vendor_config.split(',')]
+    if len(args) > 0 and isinstance(args[0], str):
+        print(f"AAAAAA args: {args}")
+        ticker = args[0].upper()
+        # 如果带有上海(.SS)或深圳(.SZ)后缀，强制优先使用 akshare
+        if ticker.endswith(".SS") or ticker.endswith(".SZ"):
+            primary_vendors = ["akshare"]
+        else:
+            vendor_config = get_vendor(category, method)
+            primary_vendors = [v.strip() for v in vendor_config.split(',')]
+    else:
+        vendor_config = get_vendor(category, method)
+        primary_vendors = [v.strip() for v in vendor_config.split(',')]
 
     if method not in VENDOR_METHODS:
         raise ValueError(f"Method '{method}' not supported")