Create app.py

app.py

@@ -0,0 +1,48 @@
+import os
+# 禁用 yfinance 的磁盘缓存，防止在只读环境中报错
+os.environ['YF_NOCACHE'] = 'True'
+
+from fastapi import FastAPI
+import yfinance as yf
+import math
+import uvicorn
+
+app = FastAPI()
+
+def clean_num(val):
+    try:
+        if val is None: return None
+        f_val = float(val)
+        if math.isnan(f_val) or math.isinf(f_val): return None
+        return f_val
+    except:
+        return None
+
+@app.get("/")
+def home():
+    return {"status": "Stock API is running", "endpoint": "/stock/{ticker}"}
+
+@app.get("/stock/{ticker}")
+def get_stock(ticker: str):
+    try:
+        # yfinance 在 HF 的环境下表现非常稳定
+        stock = yf.Ticker(ticker.upper())
+        info = stock.info
+        
+        if not info or len(info) < 5:
+            return {"error": "No data found", "ticker": ticker}
+
+        return {
+            "ticker": ticker.upper(),
+            "pe_static": clean_num(info.get('trailingPE')),
+            "pe_dynamic": clean_num(info.get('forwardPE')),
+            "eps_current_year": clean_num(info.get('trailingEps')),
+            "eps_next_year": clean_num(info.get('forwardEps')),
+            "source": "hf_space_v1"
+        }
+    except Exception as e:
+        return {"error": str(e)}
+
+if __name__ == "__main__":
+    # Hugging Face 会自动分配端口，通常是 7860
+    uvicorn.run(app, host="0.0.0.0", port=7860)