diff --git a/python/paddle_fl/mpc/data_utils/alignment.py b/python/paddle_fl/mpc/data_utils/alignment.py
index 8ee9978fd0c5cfe1fe16945df5e13caf92017b40..0e8dab74853c6e596a50b7eec3b6eb2256fc6cd3 100644
--- a/python/paddle_fl/mpc/data_utils/alignment.py
+++ b/python/paddle_fl/mpc/data_utils/alignment.py
@@ -18,7 +18,7 @@ PSI (Private Set Intersection) algorithm.
 import os
 import sys
 import mpc_data_utils as mdu
-
+from multiprocessing.connection import Client, Listener
 __all__ = ['align', ]
 
 
@@ -90,7 +90,6 @@ def _send_align_result(result, send_list):
     Each party is represented as "id:ip:port".
     :return:
     """
-    from multiprocessing.connection import Client
     for host in send_list:
         ip_addr = host.split(":")[1]
         port = int(host.split(":")[2])
@@ -112,4 +111,7 @@ def _recv_align_result(host):
     port = int(host.split(":")[2])
     server = Listener((ip_addr, port))
     conn = server.accept()
-    return conn.recv()
+    result = conn.recv()
+    conn.close()
+    server.close()
+    return result
diff --git a/python/paddle_fl/mpc/examples/env_set.py b/python/paddle_fl/mpc/examples/env_set.py
deleted file mode 100644
index 86404094853083b57a757fa79c71ef66e228e18d..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/env_set.py
+++ /dev/null
@@ -1,37 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""
-setup proper fluid_encrypted pkg path
-"""
-import sys
-
-
-class TestOptions:
-    """
-    Read test options of role, server ip, and port
-    """
-
-    def __init__(self):
-        if len(sys.argv) < 4:
-            print("Args: $ROLE $SERVER $PORT")
-            sys.exit()
-        self.__role = sys.argv[1]
-        self.__server = sys.argv[2]
-        self.__port = sys.argv[3]
-
-    def values(self):
-        """
-        Return argument values
-        """
-        return self.__role, self.__server, self.__port
diff --git a/python/paddle_fl/mpc/examples/mnist_demo/mnist_demo.py b/python/paddle_fl/mpc/examples/mnist_demo/mnist_demo.py
index efa69836b13ad996f19967980da6d4c9543cf181..5d7c5461bade14385f4da615cc3eb2fa44d5153e 100644
--- a/python/paddle_fl/mpc/examples/mnist_demo/mnist_demo.py
+++ b/python/paddle_fl/mpc/examples/mnist_demo/mnist_demo.py
@@ -1,4 +1,3 @@
-# coding=utf-8
 # Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,9 +16,7 @@ MNIST Demo
 """
 
 import sys
-sys.path.append('../')
 
-import env_set
 import numpy as np
 import time
 
@@ -29,7 +26,7 @@ import paddle_fl.mpc as pfl_mpc
 import paddle_fl.mpc.data_utils.aby3 as aby3
 import prepare_data
 
-role, server, port = env_set.TestOptions().values()
+role, server, port = sys.argv[1], sys.argv[2], sys.argv[3]
 # modify host(localhost).
 pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
 role = int(role)
diff --git a/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh b/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh
index 4c6041fbad34663f8e888bad8eb27c9e406aed63..244f37a6472f8705f29a72302bf632d731ac97ea 100755
--- a/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh
+++ b/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh
@@ -61,10 +61,23 @@ fi
 # clear the redis cache
 $REDIS_BIN -h $SERVER -p $PORT flushall
 
+# remove temp data generated in last time
+LOSS_FILE="/tmp/mnist_output_loss.*"
+PRED_FILE="/tmp/mnist_output_prediction.*"
+if [ "$LOSS_FILE" ]; then
+        rm -rf $LOSS_FILE
+fi
+
+if [ "$PRED_FILE" ]; then
+        rm -rf $PRED_FILE
+fi
 
+
+# kick off script with roles of 1 and 2, and redirect output to /dev/null
 for role in {1..2}; do
     $PYTHON $SCRIPT $role $SERVER $PORT 2>&1 >/dev/null &
 done
 
 # for party of role 0, run in a foreground mode and show the output
 $PYTHON $SCRIPT 0 $SERVER $PORT
+
diff --git a/python/paddle_fl/mpc/examples/run_standalone.sh b/python/paddle_fl/mpc/examples/run_standalone.sh
deleted file mode 100755
index 4c6041fbad34663f8e888bad8eb27c9e406aed63..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/run_standalone.sh
+++ /dev/null
@@ -1,70 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-#!/bin/bash
-#
-# A tools to faciliate the parallel running of fluid_encrypted test scrips.
-# A test script is EXPECTED to accepted arguments in the following format:
-#
-# SCRIPT_NAME $ROLE $SERVER $PORT
-#   ROLE:    the role of the running party
-#   SERVER:  the address of the party discovering service
-#   PORT:    the port of the party discovering service
-#
-# This tool will try to fill the above three argument to the test script,
-# so that totally three processes running the script will be started, to
-# simulate run of three party in a standalone machine.
-#
-# Usage of this script:
-#
-# bash run_standalone.sh TEST_SCRIPT_NAME
-#
-
-# modify the following vars according to your environment
-PYTHON="python"
-REDIS_HOME="path_to_redis_bin"
-SERVER="localhost"
-PORT=9937
-
-function usage() {
-    echo 'run_standalone.sh SCRIPT_NAME [ARG...]'
-    exit 0
-}
-
-if [ $# -lt 1 ]; then
-    usage
-fi
-
-SCRIPT=$1
-if [ ! -f $SCRIPT ]; then
-    echo 'Could not find script of '$SCRIPT
-    exit 1
-fi
-
-REDIS_BIN=$REDIS_HOME/redis-cli
-if [ ! -f $REDIS_BIN ]; then
-    echo 'Could not find redis cli in '$REDIS_HOME
-    exit 1
-fi
-
-# clear the redis cache
-$REDIS_BIN -h $SERVER -p $PORT flushall
-
-
-for role in {1..2}; do
-    $PYTHON $SCRIPT $role $SERVER $PORT 2>&1 >/dev/null &
-done
-
-# for party of role 0, run in a foreground mode and show the output
-$PYTHON $SCRIPT 0 $SERVER $PORT
diff --git a/python/paddle_fl/mpc/examples/test_add.py b/python/paddle_fl/mpc/examples/test_add.py
deleted file mode 100644
index 05895b3a832912e4b5bfaa0c77eb5f68b1854ad7..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_add.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""
-test mpc add op
-"""
-
-# set proper path for fluid_encrypted without install, should be first line
-import env_set
-
-import sys
-import numpy as np
-import paddle.fluid as fluid
-import paddle_fl.mpc as pfl_mpc
-
-role, server, port = env_set.TestOptions().values()
-
-# call mpc add
-pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
-
-data_1 = pfl_mpc.data(name='data_1', shape=[8], dtype='int64')
-data_2 = pfl_mpc.data(name='data_2', shape=[8], dtype='int64')
-
-d_1 = np.array(
-    [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]).astype('int64')
-d_2 = np.array(
-    [[7, 6, 5, 4, 3, 2, 1, 0], [7, 6, 5, 4, 3, 2, 1, 0]]).astype('int64')
-
-out_add = data_1 + data_2
-
-exe = fluid.Executor(place=fluid.CPUPlace())
-out_add = exe.run(feed={
-    'data_1': d_1,
-    'data_2': d_2,
-}, fetch_list=[out_add])
-
-print(out_add)
diff --git a/python/paddle_fl/mpc/examples/test_compare.py b/python/paddle_fl/mpc/examples/test_compare.py
deleted file mode 100644
index ab2991767c80fde49c815e437d85a5992fb015b4..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_compare.py
+++ /dev/null
@@ -1,57 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""
-test mixed mpc ops
-"""
-
-# set proper path for fluid_encrypted without install, should be first line
-import env_set
-
-import time
-import sys
-import numpy as np
-import paddle.fluid as fluid
-import paddle_fl.mpc as pfl_mpc
-
-role, server, port = env_set.TestOptions().values()
-
-pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
-
-data_1 = pfl_mpc.data(name='data_1', shape=[2, 2], dtype='int64')
-data_2 = fluid.data(name='data_2', shape=[1, 2, 2], dtype='float32')
-
-out_gt = data_1 > data_2
-out_ge = data_1 >= data_2
-out_lt = data_1 < data_2
-out_le = data_1 <= data_2
-out_eq = data_1 == data_2
-out_neq = data_1 != data_2
-
-d_1 = np.array([[[65536, 65536], [65536, 65536]],
-                [[65536, 65536], [65536, 65536]]]).astype('int64')
-d_2 = np.array([[[10, 3], [0, -3]]]).astype('float32')
-
-exe = fluid.Executor(place=fluid.CPUPlace())
-exe.run(fluid.default_startup_program())
-
-out_gt, out_ge, out_lt, out_le, out_eq, out_neq = exe.run(
-    feed={'data_1': d_1,
-          'data_2': d_2},
-    fetch_list=[out_gt, out_ge, out_lt, out_le, out_eq, out_neq])
-
-print("Input: \n d_1: {}\n d_2: {}\n".format(d_1, d_2))
-
-print(
-    "greater_than:{}\n greater_equal:{} \n less_than:{} \n less_equal:{} \n equal:{} \n not_equal:{} \n"
-    .format(out_gt, out_ge, out_lt, out_le, out_eq, out_neq))
diff --git a/python/paddle_fl/mpc/examples/test_data_utils.py b/python/paddle_fl/mpc/examples/test_data_utils.py
deleted file mode 100644
index 0b5d466310776a20776c5dbc6ffcbb6ed0a6150a..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_data_utils.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# export
-import sys
-
-import data_utils as du
-import numpy as np
-
-plaintext = 2.9
-print("Plaintext: {0}".format(plaintext))
-
-shares = du.share(plaintext)
-print("Shares: {0}".format(shares))
-
-revealed_text = du.reveal(shares)
-print("Revealed plaintext: {0}".format(revealed_text))
diff --git a/python/paddle_fl/mpc/examples/test_init.py b/python/paddle_fl/mpc/examples/test_init.py
deleted file mode 100644
index 837ef11494635e7aa992c111be7d09fbef790dc2..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_init.py
+++ /dev/null
@@ -1,32 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""
-test mpc init op
-"""
-
-# set proper path for fluid_encrypted without install, should be first line
-import env_set
-
-import sys
-import paddle.fluid as fluid
-import paddle_fl.mpc as pfl_mpc
-
-role, server, port = env_set.TestOptions().values()
-
-# call mpc init
-pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
-exe = fluid.Executor(place=fluid.CPUPlace())
-exe.run()
-
-print("Role " + role + " started")
diff --git a/python/paddle_fl/mpc/examples/test_mixed.py b/python/paddle_fl/mpc/examples/test_mixed.py
deleted file mode 100644
index ef917fd36b0096d46af384025bd6f70268e2c9f8..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_mixed.py
+++ /dev/null
@@ -1,53 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""
-test mixed mpc ops
-"""
-
-# set proper path for fluid_encrypted without install, should be first line
-import env_set
-
-import time
-import sys
-import numpy as np
-import paddle.fluid as fluid
-import paddle_fl.mpc as pfl_mpc
-
-role, server, port = env_set.TestOptions().values()
-
-# call mpc add
-pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
-
-data_1 = pfl_mpc.data(name='data_1', shape=[2, 2], dtype='int64')
-data_2 = pfl_mpc.data(name='data_2', shape=[2, 2], dtype='int64')
-data_3 = fluid.data(name='data_3', shape=[1, 2, 2], dtype='int64')
-
-out_sub = data_1 - data_2
-out_mul = pfl_mpc.layers.mul(x=data_1, y=data_2)
-out_mean = pfl_mpc.layers.mean(x=data_1)
-out_square = pfl_mpc.layers.square(x=data_1)
-out_sum = pfl_mpc.layers.sum([data_1, data_2])
-
-d_1 = np.array([[[10, 10], [10, 10]], [[10, 10], [10, 10]]]).astype('int64')
-d_2 = np.array([[[5, 5], [5, 5]], [[5, 5], [5, 5]]]).astype('int64')
-
-exe = fluid.Executor(place=fluid.CPUPlace())
-exe.run(fluid.default_startup_program())
-
-out_sub, out_mul, out_mean, out_square, out_sum = exe.run(
-    feed={'data_1': d_1,
-          'data_2': d_2},
-    fetch_list=[out_sub, out_mul, out_mean, out_square, out_sum])
-print("sub:{},\n mul: {},\n mean:{},\n square:{}, \n sum: {}\n"
-      .format(out_sub, out_mul, out_mean, out_square, out_sum))
diff --git a/python/paddle_fl/mpc/examples/test_ml.py b/python/paddle_fl/mpc/examples/test_ml.py
deleted file mode 100644
index c60add9fd669e437fc7ad51cd3906890b61aaa6b..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_ml.py
+++ /dev/null
@@ -1,48 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-"""
-test mixed mpc ops
-"""
-
-# set proper path for fluid_encrypted without install, should be first line
-import env_set
-
-import time
-import sys
-import numpy as np
-import paddle.fluid as fluid
-import paddle_fl.mpc as pfl_mpc
-
-role, server, port = env_set.TestOptions().values()
-
-pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
-
-data_1 = pfl_mpc.data(name='data_1', shape=[2, 2], dtype='int64')
-data_2 = pfl_mpc.data(name='data_2', shape=[2, 2], dtype='int64')
-
-out_sec = pfl_mpc.layers.square_error_cost(input=data_1, label=data_2)
-out_fc = pfl_mpc.layers.fc(input=data_1, size=1, act=None)
-out_relu = pfl_mpc.layers.relu(data_1)
-
-d_1 = np.array([[[10, 10], [10, 10]], [[10, 10], [10, 10]]]).astype('int64')
-d_2 = np.array([[[5, 5], [5, 5]], [[5, 5], [5, 5]]]).astype('int64')
-
-exe = fluid.Executor(place=fluid.CPUPlace())
-exe.run(fluid.default_startup_program())
-
-out_sec, out_fc, out_relu = exe.run(feed={'data_1': d_1,
-                                          'data_2': d_2},
-                                    fetch_list=[out_sec, out_fc, out_relu])
-print("square_error_cost: {},\n out_fc:{},\n out_relu:{}\n".format(
-    out_sec, out_fc, out_relu))
diff --git a/python/paddle_fl/mpc/examples/test_net.py b/python/paddle_fl/mpc/examples/test_net.py
deleted file mode 100644
index 37043929fa75969346f6ba8632fe794119a80426..0000000000000000000000000000000000000000
--- a/python/paddle_fl/mpc/examples/test_net.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import env_set
-import numpy as np
-import paddle.fluid as fluid
-import paddle_fl.mpc as pfl_mpc
-
-role, server, port = env_set.TestOptions().values()
-
-pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
-
-batch_size = 3
-
-# x is in cypher text type
-x = pfl_mpc.data(name='x', shape=[batch_size, 8], dtype='int64')
-# y is in cypher text type
-y = pfl_mpc.data(name='y', shape=[batch_size, 1], dtype='int64')
-
-y_pre = pfl_mpc.layers.fc(input=x, size=1, act=None)
-y_relu = pfl_mpc.layers.relu(input=y_pre)
-cost = pfl_mpc.layers.square_error_cost(input=y_relu, label=y)
-avg_loss = pfl_mpc.layers.mean(cost)
-
-optimizer = pfl_mpc.optimizer.SGD(learning_rate=0.001)
-optimizer.minimize(avg_loss)
-
-exe = fluid.Executor(place=fluid.CPUPlace())
-exe.run(fluid.default_startup_program())
-
-iters = 1
-for _ in range(iters):
-    d_1 = np.ones(shape=(2, batch_size, 8), dtype='int64')
-    d_2 = np.zeros(shape=(2, batch_size, 1), dtype='int64')
-    loss = exe.run(feed={'x': d_1, 'y': d_2}, fetch_list=[avg_loss])
-    print(loss)
diff --git a/python/paddle_fl/mpc/examples/uci_demo/run_standalone.sh b/python/paddle_fl/mpc/examples/uci_demo/run_standalone.sh
index 4c6041fbad34663f8e888bad8eb27c9e406aed63..ce5993e086e028021ada5b5942efde9432b55305 100755
--- a/python/paddle_fl/mpc/examples/uci_demo/run_standalone.sh
+++ b/python/paddle_fl/mpc/examples/uci_demo/run_standalone.sh
@@ -61,10 +61,23 @@ fi
 # clear the redis cache
 $REDIS_BIN -h $SERVER -p $PORT flushall
 
+# remove temp data generated in last time
+LOSS_FILE="/tmp/uci_loss.*"
+PRED_FILE="/tmp/uci_prediction.*"
+if [ "$LOSS_FILE" ]; then
+        rm -rf $LOSS_FILE
+fi
+
+if [ "$PRED_FILE" ]; then
+        rm -rf $PRED_FILE
+fi
 
+
+# kick off script with roles of 1 and 2, and redirect output to /dev/null
 for role in {1..2}; do
     $PYTHON $SCRIPT $role $SERVER $PORT 2>&1 >/dev/null &
 done
 
 # for party of role 0, run in a foreground mode and show the output
 $PYTHON $SCRIPT 0 $SERVER $PORT
+
diff --git a/python/paddle_fl/mpc/examples/uci_demo/uci_housing_demo.py b/python/paddle_fl/mpc/examples/uci_demo/uci_housing_demo.py
index 7d41bd48638f42ab672b2a11aba42718488cc226..a14f01573d012ea101bf9402d0c60223b59d9ffe 100644
--- a/python/paddle_fl/mpc/examples/uci_demo/uci_housing_demo.py
+++ b/python/paddle_fl/mpc/examples/uci_demo/uci_housing_demo.py
@@ -12,9 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import sys
-sys.path.append('../')
-
-import env_set
 import numpy as np
 import time
 
@@ -23,7 +20,7 @@ import paddle.fluid as fluid
 import paddle_fl.mpc as pfl_mpc
 import paddle_fl.mpc.data_utils.aby3 as aby3
 
-role, server, port = env_set.TestOptions().values()
+role, server, port = sys.argv[1], sys.argv[2], sys.argv[3]
 pfl_mpc.init("aby3", int(role), "localhost", server, int(port))
 role = int(role)
 
diff --git a/python/setup.py b/python/setup.py
index 5cc8769e5979b213c99cbb919f62c9e5f63c7d89..65aaa90e9fc92fc7fd40196010a05aab261f6ab7 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -34,7 +34,7 @@ def python_version():
 max_version, mid_version, min_version = python_version()
 
 REQUIRED_PACKAGES = [
-    'six >= 1.10.0', 'protobuf >= 3.1.0', 'paddlepaddle == 1.6.3', 'paddlepaddle-gpu >= 1.8'
+    'six >= 1.10.0', 'protobuf >= 3.1.0', 'paddlepaddle == 1.6.3',
 ]
 
 if max_version < 3: