diff --git a/paddle/framework/scope.h b/paddle/framework/scope.h
index cbbccf465d46ad3d39f3da5772fe8bd23225ad26..4faaf841440ba30b79c83d09fea977186bd0270a 100644
--- a/paddle/framework/scope.h
+++ b/paddle/framework/scope.h
@@ -57,8 +57,8 @@ class Scope {
       return var;
     } else {
       auto ptr = new Variable();
-      vars_[name] = std::unique_ptr<Variable>(ptr);
-      var_names_[ptr] = name;
+      name_to_var_[name] = std::unique_ptr<Variable>(ptr);
+      var_to_name_[ptr] = name;
       return GetVariable(name);
     }
   }
@@ -70,8 +70,8 @@ class Scope {
    * from it's parent scope. Return nullptr if not found.
    */
   Variable* GetVariable(const std::string& name) const {
-    auto it = vars_.find(name);
-    if (it != vars_.end()) {
+    auto it = name_to_var_.find(name);
+    if (it != name_to_var_.end()) {
       return it->second.get();
     } else if (parent_ != nullptr) {
       return parent_->GetVariable(name);
@@ -86,21 +86,21 @@ class Scope {
    * Find if there is a Variable in this scope and it's parent scope
    */
   bool HasVariable(const std::string& name) const {
-    return (vars_.find(name) != vars_.end() ||
+    return (name_to_var_.find(name) != name_to_var_.end() ||
             (parent_ && parent_->HasVariable(name)));
   }
 
   std::string GetVariableName(Variable* const var) const {
     try {
-      return var_names_.at(var);
+      return var_to_name_.at(var);
     } catch (...) {
       return "";
     }
   }
 
  private:
-  std::unordered_map<Variable*, std::string> var_names_;
-  std::unordered_map<std::string, std::unique_ptr<Variable>> vars_;
+  std::unordered_map<Variable*, std::string> var_to_name_;
+  std::unordered_map<std::string, std::unique_ptr<Variable>> name_to_var_;
   std::shared_ptr<Scope> parent_{nullptr};
 };
 
diff --git a/paddle/framework/scope_test.cc b/paddle/framework/scope_test.cc
index 51de74ddfeff7861b2cc1adbb34de90c71df0057..ff069c7be002e9bcfd63225c3d80aa958935ba14 100644
--- a/paddle/framework/scope_test.cc
+++ b/paddle/framework/scope_test.cc
@@ -42,6 +42,9 @@ TEST(Scope, Create) {
   EXPECT_EQ(var4, var2);
 
   EXPECT_EQ("a", scope->GetVariableName(var4));
+  Scope scope2;
+  auto var = scope2.CreateVariable("tmp");
+  EXPECT_EQ("", scope->GetVariableName(var));
 }
 
 TEST(Scope, Parent) {
diff --git a/paddle/pybind/pybind.cc b/paddle/pybind/pybind.cc
index 35880041222be0803d04ea455b442577a5a428be..0b152d03c0641113370fd634aed05ce6b3fb6cf2 100644
--- a/paddle/pybind/pybind.cc
+++ b/paddle/pybind/pybind.cc
@@ -15,14 +15,6 @@ limitations under the License. */
 #include <Python.h>
 #include <fstream>
 #include <vector>
-#include "paddle/framework/net.h"
-#include "paddle/framework/op_registry.h"
-#include "paddle/framework/operator.h"
-#include "paddle/framework/scope.h"
-#include "paddle/pybind/tensor_bind.h"
-#include "pybind11/numpy.h"
-#include "pybind11/pybind11.h"
-#include "pybind11/stl.h"
 
 #include "paddle/framework/net.h"
 #include "paddle/framework/op_registry.h"
@@ -160,7 +152,7 @@ All parameter, weight, gradient are variables in Paddle.
   net.def_static("create",
                  []() -> std::shared_ptr<pd::PlainNet> {
                    auto retv = std::make_shared<pd::PlainNet>();
-                   retv->type_ = "naive_net";
+                   retv->type_ = "plain_net";
                    return retv;
                  })
       .def("add_op", &pd::PlainNet::AddOp)
diff --git a/python/paddle/v2/framework/tests/test_network.py b/python/paddle/v2/framework/tests/test_network.py
index 457f8f13a6299a5c5393f48ea73736509789e94b..6d53e233e959bd39b558ac97cdca381135505f8d 100644
--- a/python/paddle/v2/framework/tests/test_network.py
+++ b/python/paddle/v2/framework/tests/test_network.py
@@ -11,7 +11,7 @@ class TestNet(unittest.TestCase):
         net.complete_add_op()
         self.assertTrue(isinstance(fc_out, core.Variable))
         self.assertEqual(
-            '''Op(naive_net), inputs:(@EMPTY@, X, Y, w), outputs:(@TEMP@fc@0, add_two@OUT@0, fc@OUT@1).
+            '''Op(plain_net), inputs:(@EMPTY@, X, Y, w), outputs:(@TEMP@fc@0, add_two@OUT@0, fc@OUT@1).
     Op(add_two), inputs:(X, Y), outputs:(add_two@OUT@0).
     Op(fc), inputs:(add_two@OUT@0, w, @EMPTY@), outputs:(fc@OUT@1, @TEMP@fc@0).
         Op(mul), inputs:(add_two@OUT@0, w), outputs:(@TEMP@fc@0).
@@ -23,7 +23,7 @@ class TestNet(unittest.TestCase):
         self.assertTrue(isinstance(tmp, core.Variable))
         net2.complete_add_op()
         self.assertEqual(
-            '''Op(naive_net), inputs:(X, Y), outputs:(add_two@OUT@2).
+            '''Op(plain_net), inputs:(X, Y), outputs:(add_two@OUT@2).
     Op(add_two), inputs:(X, Y), outputs:(add_two@OUT@2).
 ''', str(net2))