From b5dd215d4658b6bcfc9d1862994912b567aafd4b Mon Sep 17 00:00:00 2001
From: Helin Wang <ustc.harry@gmail.com>
Date: Tue, 1 May 2018 16:00:49 -0700
Subject: [PATCH] improve comments

---
 python/paddle/fluid/inferencer.py | 10 ++++++----
 python/paddle/fluid/trainer.py    | 14 ++++++++++----
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/python/paddle/fluid/inferencer.py b/python/paddle/fluid/inferencer.py
index 7b5eed86e00..3ea50bf196d 100644
--- a/python/paddle/fluid/inferencer.py
+++ b/python/paddle/fluid/inferencer.py
@@ -17,10 +17,12 @@ __all__ = ['Inferencer', ]
 
 class Inferencer(object):
     def __init__(self, network_func, params, place=None):
-        # we need to generate a framework.Program by calling
-        # network_func reference: fluid.program_guard in test_word2vec.py
-        # move the default_main_program to self.program
-        # and run the default_startup program
+        # 1. we need to generate a framework.Program by calling
+        # network_func. Reference: fluid.program_guard in test_word2vec.py
+
+        # 2. move the default_main_program to self.program.
+
+        # 3. run the default_startup program.
         self.params = params
         self.place = place
 
diff --git a/python/paddle/fluid/trainer.py b/python/paddle/fluid/trainer.py
index bc49be6d50d..aeda6765020 100644
--- a/python/paddle/fluid/trainer.py
+++ b/python/paddle/fluid/trainer.py
@@ -32,10 +32,16 @@ class Event(object):
 
 class Trainer(object):
     def __init__(self, network_func, optimizer, params=None, place=None):
-        # we need to generate a framework.Program by calling
-        # network_func reference: fluid.program_guard in test_word2vec.py
-        # move the default_main_program to self.program
-        # and run the default_startup program on an empty
+        # 1. we need to generate a framework.Program by calling
+        # network_func. Reference: fluid.program_guard in
+        # test_word2vec.py
+
+        # 2. move the default_main_program to self.program and run the
+        # default_startup program on an empty core.Scope()
+
+        # 3. call self.params.add_vars with the initialized scope, it
+        # will add the new vars of the initialized scope into
+        # self.params.
         self.network_func = network_func
         self.optimizer = optimizer
         self.params = params
-- 
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