fix the model of pad from bytes to str
diff --git a/python/singa/sonnx.py b/python/singa/sonnx.py
index 6ff7cef..01d704a 100755
--- a/python/singa/sonnx.py
+++ b/python/singa/sonnx.py
@@ -1209,7 +1209,7 @@
Returns:
singa operator instance
"""
- mode = onnx_node.getattr("mode", "constant")
+ mode = utils.force_unicode(onnx_node.getattr("mode", "constant"))
onnx_node.set_attr_inputs(onnx_node.inputs[1], 'pads')
if len(onnx_node.inputs) == 3:
onnx_node.set_attr_inputs(onnx_node.inputs[2], 'constant')
