Merge branch 'update_reader' of https://github.com/JiayiFeng/Paddle into update_reader

Author: JiayiFeng

python/paddle/fluid/framework.py

@@ -640,8 +640,7 @@ def block_attr(self, name):
         """
         return self.desc.block_attr(name)
 
-    @property
-    def attrs(self):
+    def all_attrs(self):
         """
         Get the attribute dict
         Returns(dict): The Operator's attribute dict

python/paddle/fluid/layers/io.py

@@ -279,7 +279,7 @@ def _copy_reader_create_op_(block, op):
         type=op.type,
         inputs=new_input_map,
         outputs=new_output_map,
-        attrs=op.attrs)
+        attrs=op.all_attrs())
     return new_op