[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

deepmd/pt/modifier/dp_modifier.py

@@ -27,7 +27,9 @@ def __init__(
         super().__init__(use_cache=use_cache)
 
         if dp_model_file_name is None and dp_model is None:
-            raise AttributeError("`dp_model_file_name` or `dp_model` should be specified.")
+            raise AttributeError(
+                "`dp_model_file_name` or `dp_model` should be specified."
+            )
         if dp_model_file_name is not None and dp_model is not None:
             raise AttributeError(
                 "`dp_model_file_name` and `dp_model` cannot be used simultaneously."