diff --git a/python/setup.py.client.in b/python/setup.py.client.in
index 58061f7c887be23223f554d383c98bd75fb4828b..c46a58733a2c6ac6785e0047ab19080e92dd5695 100644
--- a/python/setup.py.client.in
+++ b/python/setup.py.client.in
@@ -26,7 +26,7 @@ from setuptools import setup
 from paddle_serving_client.version import serving_client_version
 from pkg_resources import DistributionNotFound, get_distribution
 
-py_version = sys.version_info[0]
+py_version = sys.version_info
         
 def python_version():
     return [int(v) for v in platform.python_version().split(".")]
@@ -39,7 +39,12 @@ def find_package(pkgname):
         return False
 
 def copy_lib():
-    lib_list = ['libpython2.7.so.1.0', 'libssl.so.10', 'libcrypto.so.10'] if py_version == 2 else ['libpython3.6m.so.1.0', 'libssl.so.10', 'libcrypto.so.10']
+    if py_version[0] == 2:
+        lib_list = ['libpython2.7.so.1.0', 'libssl.so.10', 'libcrypto.so.10'] 
+    elif py_version[1] == 6:
+        lib_list = ['libpython3.6m.so.1.0', 'libssl.so.10', 'libcrypto.so.10']
+    elif py_version[1] == 7:
+        lib_list = ['libpython3.7m.so.1.0', 'libssl.so.10', 'libcrypto.so.10']
     os.popen('mkdir -p paddle_serving_client/lib')
     for lib in lib_list:
         r = os.popen('whereis {}'.format(lib))