diff --git a/mindspore/python/mindspore/nn/layer/image.py b/mindspore/python/mindspore/nn/layer/image.py
index d8de0fbd1fd..0655fc3cde0 100644
--- a/mindspore/python/mindspore/nn/layer/image.py
+++ b/mindspore/python/mindspore/nn/layer/image.py
@@ -14,6 +14,7 @@
 # ============================================================================
 """image"""
 from __future__ import absolute_import
+from __future__ import division
 
 import numbers
 import numpy as np
diff --git a/mindspore/python/mindspore/nn/layer/normalization.py b/mindspore/python/mindspore/nn/layer/normalization.py
index 7c25020477b..4bb4d068fdc 100644
--- a/mindspore/python/mindspore/nn/layer/normalization.py
+++ b/mindspore/python/mindspore/nn/layer/normalization.py
@@ -14,6 +14,7 @@
 # ============================================================================
 """normalization"""
 from __future__ import absolute_import
+from __future__ import division
 
 import itertools
 import numbers
diff --git a/mindspore/python/mindspore/ops/_grad_experimental/grad_math_ops.py b/mindspore/python/mindspore/ops/_grad_experimental/grad_math_ops.py
index 823426bf775..b6afad7bac6 100644
--- a/mindspore/python/mindspore/ops/_grad_experimental/grad_math_ops.py
+++ b/mindspore/python/mindspore/ops/_grad_experimental/grad_math_ops.py
@@ -15,48 +15,47 @@
 
 """Define the grad rules of math related operations."""
 
-from mindspore.common import dtype as mstype
-from mindspore.ops.operations.math_ops import Trace, Bernoulli, Renorm
-from mindspore.ops._utils.utils import is_shape_unknown
-from mindspore import nn
-import mindspore.numpy as mnp
 import numpy as np
-from ...nn import LGamma
-from .. import functional as F
-from .. import operations as P
-from ..operations.math_ops import Real, Imag, Complex, Angle
-from ..operations.math_ops import ComplexAbs
-from ..operations.math_ops import Sinc
-from ..functional import broadcast_gradient_args
-from .._grad.grad_base import bprop_getters, create_tensor_by_element, dyn_rank
-from .._grad.grad_math_ops import binop_grad_common
-from ..composite.multitype_ops.zeros_like_impl import zeros_like
-from ..operations import _grad_ops as G
-from ..operations.math_ops import Igamma, Igammac
-from ..primitive import constexpr
-from ..operations.math_ops import BesselI0
-from ..operations.math_ops import BesselI1
-from ..operations.math_ops import BesselJ0
-from ..operations.math_ops import BesselJ1
-from ..operations.math_ops import BesselK0
-from ..operations.math_ops import BesselK1
-from ..operations.math_ops import BesselK0e
-from ..operations.math_ops import BesselK1e
-from ..operations.math_ops import BesselY0
-from ..operations.math_ops import BesselY1
-from ..operations.math_ops import NextAfter
-from ..operations.math_ops import Hypot
-from ..operations.math_ops import ReduceStd
-from ..operations.math_ops import LuUnpack
-from ..operations.math_ops import MatrixExp
-from ..operations.math_ops import MatrixSolve
-from ..operations.math_ops import Median
-from ..operations.math_ops import Betainc
-from ..operations.math_ops import CholeskySolve
-from ..operations.math_ops import AddV2
-from ..operations.math_ops import TridiagonalMatMul
-from ..operations.math_ops import Logit
-from .._utils.utils import is_shape_unknown
+import mindspore.numpy as mnp
+from mindspore.common import dtype as mstype
+from mindspore import nn
+from mindspore.nn import LGamma
+from mindspore.ops import functional as F
+from mindspore.ops.functional import broadcast_gradient_args
+from mindspore.ops import operations as P
+from mindspore.ops.operations.math_ops import Trace, Bernoulli, Renorm
+from mindspore.ops.operations.math_ops import Real, Imag, Complex, Angle
+from mindspore.ops.operations.math_ops import ComplexAbs
+from mindspore.ops.operations.math_ops import Sinc
+from mindspore.ops.operations import _grad_ops as G
+from mindspore.ops.operations.math_ops import Igamma, Igammac
+from mindspore.ops.operations.math_ops import BesselI0
+from mindspore.ops.operations.math_ops import BesselI1
+from mindspore.ops.operations.math_ops import BesselJ0
+from mindspore.ops.operations.math_ops import BesselJ1
+from mindspore.ops.operations.math_ops import BesselK0
+from mindspore.ops.operations.math_ops import BesselK1
+from mindspore.ops.operations.math_ops import BesselK0e
+from mindspore.ops.operations.math_ops import BesselK1e
+from mindspore.ops.operations.math_ops import BesselY0
+from mindspore.ops.operations.math_ops import BesselY1
+from mindspore.ops.operations.math_ops import NextAfter
+from mindspore.ops.operations.math_ops import Hypot
+from mindspore.ops.operations.math_ops import ReduceStd
+from mindspore.ops.operations.math_ops import LuUnpack
+from mindspore.ops.operations.math_ops import MatrixExp
+from mindspore.ops.operations.math_ops import MatrixSolve
+from mindspore.ops.operations.math_ops import Median
+from mindspore.ops.operations.math_ops import Betainc
+from mindspore.ops.operations.math_ops import CholeskySolve
+from mindspore.ops.operations.math_ops import AddV2
+from mindspore.ops.operations.math_ops import TridiagonalMatMul
+from mindspore.ops.operations.math_ops import Logit
+from mindspore.ops.composite.multitype_ops.zeros_like_impl import zeros_like
+from mindspore.ops.primitive import constexpr
+from mindspore.ops._utils.utils import is_shape_unknown
+from mindspore.ops._grad.grad_base import bprop_getters, create_tensor_by_element, dyn_rank
+from mindspore.ops._grad.grad_math_ops import binop_grad_common
 
 
 transpose = P.Transpose()
diff --git a/mindspore/python/mindspore/ops/operations/_grad_ops.py b/mindspore/python/mindspore/ops/operations/_grad_ops.py
index f07e99e32a1..f51a711af73 100644
--- a/mindspore/python/mindspore/ops/operations/_grad_ops.py
+++ b/mindspore/python/mindspore/ops/operations/_grad_ops.py
@@ -14,6 +14,7 @@
 # ============================================================================
 
 """Operators for gradients."""
+from  __future__ import division
 from mindspore._checkparam import _check_3d_int_or_tuple
 
 from mindspore.ops.operations.nn_ops import _check_positive_int_or_tuple
diff --git a/mindspore/python/mindspore/ops/operations/math_ops.py b/mindspore/python/mindspore/ops/operations/math_ops.py
index 3f6eeae7e79..b518ad75b35 100644
--- a/mindspore/python/mindspore/ops/operations/math_ops.py
+++ b/mindspore/python/mindspore/ops/operations/math_ops.py
@@ -16,6 +16,8 @@
 """Operators for math."""
 
 from __future__ import absolute_import
+from __future__ import division
+
 import numpy as np
 from mindspore import context
 from mindspore.ops import signature as sig