fix code

Author: chaoming0625

deepxde/callbacks.py

@@ -556,7 +556,6 @@ def on_train_end(self):
                 )
 
 
-
 class PDEPointResampler(Callback):
     """Resample the training points for PDE and/or BC losses every given period.
 

deepxde/nn/paddle/deeponet.py

@@ -4,7 +4,7 @@
 from .nn import NN
 from .. import activations
 from .. import initializers
-from deepxde.utils.deeponet_strategy import (
+from ...utils.deeponet_strategy import (
     SingleOutputStrategy,
     IndependentStrategy,
     SplitBothStrategy,

deepxde/nn/pytorch/deeponet.py

@@ -5,7 +5,7 @@
 from .fnn import FNN
 from .nn import NN
 from .. import activations
-from deepxde.utils.deeponet_strategy import (
+from ...utils.deeponet_strategy import (
     SingleOutputStrategy,
     IndependentStrategy,
     SplitBothStrategy,

deepxde/nn/tensorflow/deeponet.py

@@ -3,7 +3,7 @@
 from .fnn import FNN
 from .nn import NN
 from .. import activations
-from deepxde.utils.deeponet_strategy import (
+from ...utils.deeponet_strategy import (
     SingleOutputStrategy,
     IndependentStrategy,
     SplitBothStrategy,