diff --git a/paddle/fluid/pybind/pybind.cc b/paddle/fluid/pybind/pybind.cc
index 03fe1402c3b3b38264189d44737d6b0f1852f6a2..3cf1ec34a7a7642cd34bdc1f312ac1ffadaa3e5d 100644
--- a/paddle/fluid/pybind/pybind.cc
+++ b/paddle/fluid/pybind/pybind.cc
@@ -159,7 +159,6 @@ PYBIND11_MODULE(core, m) {
              self.mutable_data<float>(place);
            })
       .def("set", PyCPUTensorSetFromArray<float>)
-      .def("set_float", PyCPUTensorSetFromArray<float>)
       .def("set", PyCPUTensorSetFromArray<int>)
       .def("set", PyCPUTensorSetFromArray<double>)
       .def("set", PyCPUTensorSetFromArray<int64_t>)
diff --git a/python/paddle/fluid/framework.py b/python/paddle/fluid/framework.py
index 235d692afe84e813a57c27a3cc13eb286b1f5fc0..3d3263e7cda033f1df3492105736ae2c0d1f6d9d 100644
--- a/python/paddle/fluid/framework.py
+++ b/python/paddle/fluid/framework.py
@@ -283,15 +283,11 @@ class Variable(core.VariableBase):
             name = unique_name.generate('_generated_var')
         is_new_var = False
         name = cpt.to_text(name)
-        desc = self.block.desc.find_var(cpt.to_bytes(name))
+        self.desc = self.block.desc.find_var(cpt.to_bytes(name))
 
-        if desc is None:
-            # sys.stderr.write('desc is None\n')
+        if self.desc is None:
             self.desc = self.block.desc.var(cpt.to_bytes(name))
             is_new_var = True
-        else:
-            # sys.stderr.write('found var %s %s' % (name, self.desc))
-            self.desc = desc
 
         if is_new_var:
             self.desc.set_type(type)
diff --git a/python/paddle/fluid/imperative/layers.py b/python/paddle/fluid/imperative/layers.py
index 32928347af8e805153c552dbbfe16d073f9c8bbe..15f69398464939d5889cb97a6ae802eab382cdac 100644
--- a/python/paddle/fluid/imperative/layers.py
+++ b/python/paddle/fluid/imperative/layers.py
@@ -54,7 +54,7 @@ class PyLayer(core.Layer):
                         dtype=x.dtype)
                     var = self._scope.var(py_var.name)
                     tensor = var.get_tensor()
-                    tensor.set_float(x, core.CPUPlace())
+                    tensor.set(x, core.CPUPlace())
                     var_inputs.append(py_var)
                 elif isinstance(x, framework.Variable):
                     var_inputs.append(x)
diff --git a/python/paddle/fluid/layer_helper.py b/python/paddle/fluid/layer_helper.py
index ceabb52215ee5bc8487b90f23a12d47e6838a198..ca531f3be929e18895336f32e1e9d7ab108699b1 100644
--- a/python/paddle/fluid/layer_helper.py
+++ b/python/paddle/fluid/layer_helper.py
@@ -50,7 +50,6 @@ class LayerHelper(object):
 
     def _np_to_variable(self, x):
         tensor = core.LoDTensor()
-        sys.stderr.write('%s %s\n' % (tensor, x))
         tensor.set(x, core.CPUPlace())
         return Variable(
             self.main_program.current_block(),
@@ -67,12 +66,6 @@ class LayerHelper(object):
         else:
             raise ValueError("inputs wrong type %s\n" % x)
 
-    def to_variables(self, inputs):
-        if isinstance(inputs, list) or isinstance(inputs, tuple):
-            return [self._to_variable(x) for x in inputs]
-        else:
-            return [self._to_variable(inputs)]
-
     def append_op(self, *args, **kwargs):
         return self.main_program.current_block().append_op(*args, **kwargs)