change import

main.py

@@ -48,7 +48,8 @@ async def ocr(file: UploadFile = File(...)):
     )
     return out_df.to_dict(orient='records')
 
-  
+TMP_DIR = Path(__file__).parent / "tmp_uploads"
+TMP_DIR.mkdir(parents=True, exist_ok=True)
 @app.post("/ocr_table")    
 async def ocr_table(file: UploadFile = File(...)):
     # ------------------- ① 参数校验 -------------------