diff --git a/tools/importers/onnx/lib/onnx_converters.py b/tools/importers/onnx/lib/onnx_converters.py
index 98016e706..1bbe61797 100644
--- a/tools/importers/onnx/lib/onnx_converters.py
+++ b/tools/importers/onnx/lib/onnx_converters.py
@@ -811,7 +811,7 @@ def slice_tensor(self, node):
         if axis == 0:
             tensor = tensor[starts:ends,]
         elif axis == 1:
-            tensor =tensor[:,starts:ends,]
+            tensor = tensor[:,starts:ends,]
         elif axis == 2:
             tensor = tensor[:,:,starts:ends,]
         elif axis == 3:
@@ -1279,11 +1279,14 @@ def get_attributes(self, attrs: Attributes):
         
     def get_output_shapes(self):
         # now compute the output size
-        channel = 0 
         if len(self.node.input_shapes) > 2:
             # third input is the output shape
+            input_shape = self.node.input_shapes[2][0]
+            if len(input_shape) == 1:
+                # normalize the shape
+                input_shape = (input_shape[0], 1)
+                return [(input_shape, self.get_order(input_shape))]
             return [self.node.input_shapes[2]]
-
         if len(self.node.input_shapes) == 2:
             n, m1 = self.node.input_shapes[0][0]
             if attributes["transA"]:
@@ -1303,7 +1306,6 @@ def get_output_shapes(self):
                 
         else:
             raise Exception("Gemm operation is expecting two inputs, but we have {}".format(len(self.node.input_shapes)))
-
         return [(result, self.get_order(result))]
 
     def get_weights(self):
@@ -1324,7 +1326,7 @@ def get_weights(self):
             tensor_shape = tensor.shape
             tensor_len = len(tensor_shape)
             transpose = self.node.attributes["transB"]
-            if tensor_len == 2 :                   
+            if tensor_len == 2:
                 if len(input_shape) == 3:
                     tensor = self.reshape_3d_into_2d_tensor(input_shape, weights, transpose)
                     tensor_shape = tensor.shape
@@ -1336,12 +1338,12 @@ def get_weights(self):
                 # from what you'd expect doing "weight * input", not "input * weight" so we may need to transpose here 
                 # again to account for this.
                 input_shape = (np.product(input_shape), 1)
-                if tensor_shape[1] == input_shape[0]: # make sure we have m*n and n*k.
+                if tensor_shape[1] == input_shape[0]:  # make sure we have m*n and n*k.
                     pass
                 elif tensor_shape[0] == input_shape[0]:
                     # then the weights need to be transposed.
                     tensor = tensor.T
-                    self.add_tensor(weights[0], tensor) # re-register the transformed version.
+                    self.add_tensor(weights[0], tensor)  # re-register the transformed version.
                 else:
                     raise Exception("Cannot multiply matrices of incompatible shapes {} x {}".format(tensor_shape, input_shape))
 
@@ -1373,9 +1375,17 @@ def get_attributes(self, attrs: Attributes):
         if 'strides' in attrs:
             self.strides = attrs['strides']
             attributes['stride'] = self.strides[0]
+            if len(self.strides) > 1:
+                for s in self.strides[1:]:
+                    if s != self.strides[0]:
+                        raise Exception("Multiple strides {} is not supported".format(self.strides))
         if 'pads' in attrs:
             self.padding = attrs['pads']
             attributes['padding'] = self.padding[0]
+            if len(self.padding) > 1:
+                for s in self.padding[1:]:
+                    if s != self.padding[0]:
+                        raise Exception("Multiple padding {} is not supported".format(self.padding))
         if 'dilations' in attrs:
             self.dilations = attrs['dilations']
             attributes['dilation'] = self.dilations[0]