diff --git a/sql/data_dictionary.py b/sql/data_dictionary.py
index 05e20622bc..942023ac94 100644
--- a/sql/data_dictionary.py
+++ b/sql/data_dictionary.py
@@ -90,9 +90,11 @@ def table_info(request):
     )
 
 
-def get_export_full_path(base_dir:str, instance_name: str, db_name: str) -> str:
+def get_export_full_path(base_dir: str, instance_name: str, db_name: str) -> str:
     """validate if the instance_name and db_name provided is secure"""
-    fullpath = os.path.normpath(os.path.join(base_dir, f"{instance_name}_{db_name}.html"))
+    fullpath = os.path.normpath(
+        os.path.join(base_dir, f"{instance_name}_{db_name}.html")
+    )
     if not fullpath.startswith(base_dir):
         return ""
     return fullpath
@@ -145,9 +147,7 @@ def export(request):
         fullpath = get_export_full_path(path, instance_name, db)
         if not fullpath:
             return JsonResponse({"status": 1, "msg": "实例名或db名不合法", "data": []})
-        response = FileResponse(
-            open(fullpath, "rb")
-        )
+        response = FileResponse(open(fullpath, "rb"))
         response["Content-Type"] = "application/octet-stream"
         response[
             "Content-Disposition"