diff --git a/deepmd/infer/deep_property.py b/deepmd/infer/deep_property.py
index 637eec6496..e8560edadd 100644
--- a/deepmd/infer/deep_property.py
+++ b/deepmd/infer/deep_property.py
@@ -56,8 +56,12 @@ def change_output_def(self) -> None:
             )
         )
         self.deep_eval.output_def = self.output_def
-        self.deep_eval._OUTDEF_DP2BACKEND[self.get_property_name()] = f"atom_{self.get_property_name()}"
-        self.deep_eval._OUTDEF_DP2BACKEND[f"{self.get_property_name()}_redu"] = self.get_property_name()
+        self.deep_eval._OUTDEF_DP2BACKEND[self.get_property_name()] = (
+            f"atom_{self.get_property_name()}"
+        )
+        self.deep_eval._OUTDEF_DP2BACKEND[f"{self.get_property_name()}_redu"] = (
+            self.get_property_name()
+        )
 
     @property
     def task_dim(self) -> int:
@@ -125,7 +129,9 @@ def eval(
         atomic_property = results[self.get_property_name()].reshape(
             nframes, natoms, self.get_task_dim()
         )
-        property = results[f"{self.get_property_name()}_redu"].reshape(nframes, self.get_task_dim())
+        property = results[f"{self.get_property_name()}_redu"].reshape(
+            nframes, self.get_task_dim()
+        )
 
         if atomic:
             return (
diff --git a/deepmd/pt/model/model/property_model.py b/deepmd/pt/model/model/property_model.py
index 713aee6f5c..8ae1e7a264 100644
--- a/deepmd/pt/model/model/property_model.py
+++ b/deepmd/pt/model/model/property_model.py
@@ -62,8 +62,12 @@ def forward(
             do_atomic_virial=do_atomic_virial,
         )
         model_predict = {}
-        model_predict[f"atom_{self.get_property_name()}"] = model_ret[self.get_property_name()]
-        model_predict[self.get_property_name()] = model_ret[f"{self.get_property_name()}_redu"]
+        model_predict[f"atom_{self.get_property_name()}"] = model_ret[
+            self.get_property_name()
+        ]
+        model_predict[self.get_property_name()] = model_ret[
+            f"{self.get_property_name()}_redu"
+        ]
         if "mask" in model_ret:
             model_predict["mask"] = model_ret["mask"]
         return model_predict
@@ -107,8 +111,12 @@ def forward_lower(
             extra_nlist_sort=self.need_sorted_nlist_for_lower(),
         )
         model_predict = {}
-        model_predict[f"atom_{self.get_property_name()}"] = model_ret[self.get_property_name()]
-        model_predict[self.get_property_name()] = model_ret[f"{self.get_property_name()}_redu"]
+        model_predict[f"atom_{self.get_property_name()}"] = model_ret[
+            self.get_property_name()
+        ]
+        model_predict[self.get_property_name()] = model_ret[
+            f"{self.get_property_name()}_redu"
+        ]
         if "mask" in model_ret:
             model_predict["mask"] = model_ret["mask"]
         return model_predict