Port new added code

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 = []

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])))