diff --git a/python/paddle/fluid/tests/unittests/my_data_generator.py b/python/paddle/fluid/tests/unittests/my_data_generator.py
index 6d5061edf6b6d255ce6d449b379032c9e19096d7..ac906b3256163f421310f10014730afc7ed0add3 100644
--- a/python/paddle/fluid/tests/unittests/my_data_generator.py
+++ b/python/paddle/fluid/tests/unittests/my_data_generator.py
@@ -34,8 +34,5 @@ class MyDataset(fleet.MultiSlotDataGenerator):
 
 
 if __name__ == "__main__":
-    #start = time.clock()
     d = MyDataset()
     d.run_from_stdin()
-    #elapsed = (time.clock() - start)
-    #print("Time used:",elapsed)
diff --git a/python/paddle/fluid/tests/unittests/test_data_generator.py b/python/paddle/fluid/tests/unittests/test_data_generator.py
index 310913f695b34bf59bcaa57e0b1f8e6ef12d9429..221b9ba7683de164dfd002c7157f22d61d2ed6a5 100644
--- a/python/paddle/fluid/tests/unittests/test_data_generator.py
+++ b/python/paddle/fluid/tests/unittests/test_data_generator.py
@@ -15,6 +15,7 @@ import unittest
 import paddle.distributed.fleet as fleet
 import os
 import sys
+import platform
 
 
 class MyMultiSlotDataGenerator(fleet.MultiSlotDataGenerator):
@@ -109,9 +110,11 @@ class TestMultiSlotStringDataGenerator(unittest.TestCase):
 
 
 class TestMultiSlotStringDataGenerator_2(unittest.TestCase):
-    @unittest.skipIf(sys.platform == "win32",
-                     "Windows does not support this pipe command")
     def test_MyMultiSlotStringDataGenerator_stdin(self):
+        plats = platform.platform()
+        if 'Linux' not in plats:
+            print("skip pipecommand UT on MacOS/Win")
+            return
         with open("test_queue_dataset_run_a.txt", "w") as f:
             data = "2 1 2\n"
             data += "2 6 2\n"