update type hint in expression

PaddlePaddle · Aug 26, 2023 · 62e9855 · 62e9855
1 parent cfa853f
commit 62e9855
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ppsci/utils/expression.py b/ppsci/utils/expression.py
@@ -18,11 +18,11 @@
 from typing import Optional
 from typing import Tuple
 
-import paddle
 from paddle import jit
 from paddle import nn
 
 if TYPE_CHECKING:
+    import paddle
     from ppsci import constraint
     from ppsci import validate