From 840cf780e43f36dcdf0adc1797bc63570d3fd1d1 Mon Sep 17 00:00:00 2001
From: Xin Pan <panxin.grad@gmail.com>
Date: Wed, 27 Feb 2019 10:56:04 +0800
Subject: [PATCH] add deprecation warning.

test=develop
---
 python/paddle/fluid/parallel_executor.py                     | 5 +++++
 python/paddle/fluid/transpiler/inference_transpiler.py       | 2 ++
 .../fluid/transpiler/memory_optimization_transpiler.py       | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/python/paddle/fluid/parallel_executor.py b/python/paddle/fluid/parallel_executor.py
index 889156ff74..fa8d5ef5d3 100644
--- a/python/paddle/fluid/parallel_executor.py
+++ b/python/paddle/fluid/parallel_executor.py
@@ -92,6 +92,11 @@ class ParallelExecutor(object):
                  num_trainers=1,
                  trainer_id=0,
                  scope=None):
+        sys.stderr.write(
+            'ParallelExecutor is deprecated. '
+            'Please use CompiledProgram and Executor. CompiledProgram '
+            'is a central place for optimization and Executor is the '
+            'unified executor. Example can be found in compiler.py.\n')
         # step1: get places, the places are used in run too.
         self._places = []
         if use_cuda:
diff --git a/python/paddle/fluid/transpiler/inference_transpiler.py b/python/paddle/fluid/transpiler/inference_transpiler.py
index cc7f5ec90c..fea10d7c3b 100644
--- a/python/paddle/fluid/transpiler/inference_transpiler.py
+++ b/python/paddle/fluid/transpiler/inference_transpiler.py
@@ -15,6 +15,7 @@
 from __future__ import print_function
 
 import os
+import sys
 import numpy as np
 from .. import core
 from ..framework import Program
@@ -50,6 +51,7 @@ class InferenceTranspiler(object):
             place (Place): inference place
             scope (Scope|None): inference Scope
         '''
+        sys.stderr.write('InferenceTranspiler is deprecated.\n')
         if not isinstance(program, Program):
             raise TypeError("program should be as Program type")
         if not isinstance(place, core.CPUPlace) and not isinstance(
diff --git a/python/paddle/fluid/transpiler/memory_optimization_transpiler.py b/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
index ee8cde441f..f3c7b3d63b 100755
--- a/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
+++ b/python/paddle/fluid/transpiler/memory_optimization_transpiler.py
@@ -15,6 +15,7 @@
 from __future__ import print_function
 
 import six
+import sys
 from collections import defaultdict, MutableSet
 from .. import core
 from ... import compat as cpt
@@ -509,6 +510,7 @@ def memory_optimize(input_program,
     Returns:
         None
     """
+    sys.stderr.write('memory_optimize is deprecated.\n')
 
     def to_name_str(var):
         if isinstance(var, Variable):
-- 
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