diff --git a/paddle/fluid/operators/reader/create_py_array_reader_op.cc b/paddle/fluid/operators/reader/create_py_array_reader_op.cc
index ed7ef4affb608f0febf128a7162596d883cbb75e..36378c7deb9859d0fefa7644aa08b6c0afee8bbc 100644
--- a/paddle/fluid/operators/reader/create_py_array_reader_op.cc
+++ b/paddle/fluid/operators/reader/create_py_array_reader_op.cc
@@ -29,9 +29,7 @@ class PyArrayReader : public framework::ReaderBase {
     *out = queue_->Dequeue();
   }
 
-  void ReInit() override {
-    // PADDLE_THROW("PyArrayReader does not support ReInit()");
-  }
+  void ReInit() override {}
 
  private:
   std::shared_ptr<PyArrayFeedQueue> queue_;
diff --git a/python/paddle/fluid/layers/io.py b/python/paddle/fluid/layers/io.py
index 3773653bcdd7a0d79261b077e44783d7e4633e79..811471c5fd626cfed07d63631ceecaf442ee0d8c 100644
--- a/python/paddle/fluid/layers/io.py
+++ b/python/paddle/fluid/layers/io.py
@@ -449,7 +449,6 @@ def random_data_generator(low, high, shapes, lod_levels, for_parallel=True):
     return monkey_patch_reader_methods(main_prog_var)
 
 
-# UNCHECK(zengjinle)
 def py_array_reader(capacity,
                     shapes,
                     lod_levels,