diff --git a/python/paddle/fluid/tests/unittests/test_attention_lstm_op.py b/python/paddle/fluid/tests/unittests/test_attention_lstm_op.py
index a7382c2244ec3291c4e8f625cc2d15499e0acdac..1b9c3efe0fa9e9f1b8ad09029079898622e7d489 100644
--- a/python/paddle/fluid/tests/unittests/test_attention_lstm_op.py
+++ b/python/paddle/fluid/tests/unittests/test_attention_lstm_op.py
@@ -37,7 +37,7 @@ def attention_lstm(
     T = sum(lod[0])
     N = len(lod[0])
     M = x.shape[1]
-    D = b.shape[1] / 4
+    D = b.shape[1] // 4
     assert T == x.shape[0]
     assert len(fcws) == len(fcbs)
     hidden = []
diff --git a/python/paddle/fluid/transpiler/details/program_utils.py b/python/paddle/fluid/transpiler/details/program_utils.py
index 420ae6dfd4b75b507dd01bb947fa707bca5cdb08..64863aceee11c64e614efc759cfba479fc4c5b6d 100644
--- a/python/paddle/fluid/transpiler/details/program_utils.py
+++ b/python/paddle/fluid/transpiler/details/program_utils.py
@@ -159,7 +159,7 @@ def program_to_code(prog):
             get_indent_space(indent), '{', block_idx))
         indent += 1
         # sort all vars
-        all_vars = sorted(block.vars.iteritems(), key=lambda x: x[0])
+        all_vars = sorted(six.iteritems(block.vars), key=lambda x: x[0])
         for var in all_vars:
             print("{}{}".format(
                 get_indent_space(indent), variable_to_code(var[1])))