diff --git a/torch_npu/utils/_dynamo.py b/torch_npu/utils/_dynamo.py
index 76c30caa1f5b8d3c760d4a5cfae660c274e1e533..03e3f992673f38d3db43b6a138101f369d9a73cc 100644
--- a/torch_npu/utils/_dynamo.py
+++ b/torch_npu/utils/_dynamo.py
@@ -10,7 +10,6 @@ from torch._dynamo.variables.user_defined import UserDefinedClassVariable
 from torch._dynamo.variables.functions import SkipFunctionVariable
 from torch._dynamo.variables.constant import ConstantVariable
 
-
 from torch._dynamo.variables.tensor import TensorVariable
 from torch._dynamo.variables.lists import TupleVariable
 from torch._dynamo import optimize