diff --git a/deepmd/dpmodel/__init__.py b/deepmd/dpmodel/__init__.py
index 9deea3bbc0..906aac662a 100644
--- a/deepmd/dpmodel/__init__.py
+++ b/deepmd/dpmodel/__init__.py
@@ -14,8 +14,8 @@
     OutputVariableDef,
     fitting_check_output,
     get_deriv_name,
-    get_reduce_name,
     get_hessian_name,
+    get_reduce_name,
     model_check_output,
 )
 
diff --git a/deepmd/pt/model/model/__init__.py b/deepmd/pt/model/model/__init__.py
index b578419314..2bd7d0fcef 100644
--- a/deepmd/pt/model/model/__init__.py
+++ b/deepmd/pt/model/model/__init__.py
@@ -18,12 +18,12 @@
     EnergyModel,
     ZBLModel,
 )
-from .model import (
-    BaseModel,
-)
 from .make_hessian_model import (
     make_hessian_model,
 )
+from .model import (
+    BaseModel,
+)
 
 
 def get_zbl_model(model_params):