update models

dygraph/models/hrnet.py

@@ -19,7 +19,10 @@ import paddle.fluid as fluid
 from paddle.fluid.param_attr import ParamAttr
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.dygraph.nn import Conv2D, Pool2D, Linear
-from paddle.fluid.dygraph import SyncBatchNorm as BatchNorm
+try:
+    from paddle.fluid.dygraph import SyncBatchNorm as BatchNorm
+except:
+    from paddle.fluid.dygraph import BatchNorm
 
 __all__ = [
     "HRNet_W18_Small_V1", "HRNet_W18_Small_V2", "HRNet_W18", "HRNet_W30",

dygraph/models/unet.py

@@ -14,7 +14,10 @@
 
 import paddle.fluid as fluid
 from paddle.fluid.dygraph import Conv2D, Pool2D
-from paddle.fluid.dygraph import SyncBatchNorm as BatchNorm
+try:
+    from paddle.fluid.dygraph import SyncBatchNorm as BatchNorm
+except:
+    from paddle.fluid.dygraph import BatchNorm
 
 
 class UNet(fluid.dygraph.Layer):