diff --git a/docs/pytorch_project_convertor/API_docs/vision/torchvision.transforms.ToPILImage.md b/docs/pytorch_project_convertor/API_docs/vision/torchvision.transforms.ToPILImage.md
index 7c1c6847f177e4e310c0fef3249403b07278deca..f377590d79e43fc38688751b044232f39bb7b2c9 100644
--- a/docs/pytorch_project_convertor/API_docs/vision/torchvision.transforms.ToPILImage.md
+++ b/docs/pytorch_project_convertor/API_docs/vision/torchvision.transforms.ToPILImage.md
@@ -18,7 +18,8 @@ from paddle.vision.transforms import functional as F
 
 class ToPILImage(BaseTransform):
     def __init__(self, mode=None, keys=None):
-        super(ToTensor, self).__init__(keys)
+        super(ToPILImage, self).__init__(keys)
+        self.mode = mode
 
     def _apply_image(self, pic):
         """
@@ -53,7 +54,7 @@ class ToPILImage(BaseTransform):
 
         npimg = pic
         if isinstance(pic, paddle.Tensor) and "float" in str(pic.numpy(
-        ).dtype) and mode != 'F':
+        ).dtype) and self.mode != 'F':
             pic = pic.mul(255).byte()
         if isinstance(pic, paddle.Tensor):
             npimg = np.transpose(pic.numpy(), (1, 2, 0))
@@ -74,40 +75,40 @@ class ToPILImage(BaseTransform):
                 expected_mode = 'I'
             elif npimg.dtype == np.float32:
                 expected_mode = 'F'
-            if mode is not None and mode != expected_mode:
+            if self.mode is not None and self.mode != expected_mode:
                 raise ValueError(
                     "Incorrect mode ({}) supplied for input type {}. Should be {}"
-                    .format(mode, np.dtype, expected_mode))
-            mode = expected_mode
+                    .format(self.mode, np.dtype, expected_mode))
+            self.mode = expected_mode
 
         elif npimg.shape[2] == 2:
             permitted_2_channel_modes = ['LA']
-            if mode is not None and mode not in permitted_2_channel_modes:
+            if self.mode is not None and self.mode not in permitted_2_channel_modes:
                 raise ValueError("Only modes {} are supported for 2D inputs".
                                  format(permitted_2_channel_modes))
 
-            if mode is None and npimg.dtype == np.uint8:
-                mode = 'LA'
+            if self.mode is None and npimg.dtype == np.uint8:
+                self.mode = 'LA'
 
         elif npimg.shape[2] == 4:
             permitted_4_channel_modes = ['RGBA', 'CMYK', 'RGBX']
-            if mode is not None and mode not in permitted_4_channel_modes:
+            if self.mode is not None and self.mode not in permitted_4_channel_modes:
                 raise ValueError("Only modes {} are supported for 4D inputs".
                                  format(permitted_4_channel_modes))
 
-            if mode is None and npimg.dtype == np.uint8:
-                mode = 'RGBA'
+            if self.mode is None and npimg.dtype == np.uint8:
+                self.mode = 'RGBA'
         else:
             permitted_3_channel_modes = ['RGB', 'YCbCr', 'HSV']
-            if mode is not None and mode not in permitted_3_channel_modes:
+            if self.mode is not None and self.mode not in permitted_3_channel_modes:
                 raise ValueError("Only modes {} are supported for 3D inputs".
                                  format(permitted_3_channel_modes))
-            if mode is None and npimg.dtype == np.uint8:
-                mode = 'RGB'
+            if self.mode is None and npimg.dtype == np.uint8:
+                self.mode = 'RGB'
 
-        if mode is None:
+        if self.mode is None:
             raise TypeError('Input type {} is not supported'.format(
                 npimg.dtype))
 
-        return Image.fromarray(npimg, mode=mode)
+        return Image.fromarray(npimg, mode=self.mode)
 ```
diff --git a/x2paddle/decoder/onnx_decoder.py b/x2paddle/decoder/onnx_decoder.py
index 0514d19d8c8ec573507eaf034006b618529dcb8c..a0a4bd13633a7287359d3dc775c5d4860d03883f 100755
--- a/x2paddle/decoder/onnx_decoder.py
+++ b/x2paddle/decoder/onnx_decoder.py
@@ -184,14 +184,15 @@ class ONNXGraph(Graph):
         self.value_infos = {}
         self.graph = onnx_model.graph
         self.get_place_holder_nodes()
-        print("shape inferencing ...")
-        self.graph = SymbolicShapeInference.infer_shapes(
-            onnx_model, fixed_input_shape=self.fixed_input_shape)
-        if self.graph is None:
+        print("Shape inferencing ...")
+        try:
+            self.graph = SymbolicShapeInference.infer_shapes(
+                onnx_model, fixed_input_shape=self.fixed_input_shape)
+        except:
             print('[WARNING] Shape inference by ONNX offical interface.')
             onnx_model = shape_inference.infer_shapes(onnx_model)
             self.graph = onnx_model.graph
-        print("shape inferenced.")
+        print("Shape inferenced.")
         self.build()
         self.collect_value_infos()
         self.allocate_shapes()
diff --git a/x2paddle/decoder/onnx_shape_inference.py b/x2paddle/decoder/onnx_shape_inference.py
index 952add658367169cc6b30e565b21823bdfe431a1..2643dd3f1823cddf4bd8cb2ccbadd75690e32884 100644
--- a/x2paddle/decoder/onnx_shape_inference.py
+++ b/x2paddle/decoder/onnx_shape_inference.py
@@ -265,7 +265,7 @@ class SymbolicShapeInference:
         if pending_nodes and self.verbose_ > 0:
             print('SymbolicShapeInference: orphaned nodes discarded: ')
             print(
-                *[n.op_type + ': ' + n.output[0] for n in pending_nodes],
+                * [n.op_type + ': ' + n.output[0] for n in pending_nodes],
                 sep='\n')
 
         if input_shapes is not None:
@@ -1588,7 +1588,9 @@ class SymbolicShapeInference:
         assert version.parse(onnx.__version__) >= version.parse("1.5.0")
         onnx_opset = get_opset(in_mp)
         if not onnx_opset or onnx_opset < 7:
-            print('[WARNING] Symbolic shape inference only support models of onnx opset 7 and above.')
+            print(
+                '[WARNING] Symbolic shape inference only support models of onnx opset 7 and above.'
+            )
             return
         symbolic_shape_inference = SymbolicShapeInference(
             int_max, auto_merge, guess_output_rank, verbose)
@@ -1608,4 +1610,4 @@ class SymbolicShapeInference:
             print('[WARNING] Incomplete symbolic shape inference')
             symbolic_shape_inference.out_mp_ = shape_inference.infer_shapes(
                 symbolic_shape_inference.out_mp_)
-        return symbolic_shape_inference.out_mp_.graph
\ No newline at end of file
+        return symbolic_shape_inference.out_mp_.graph