diff --git a/.gitignore b/.gitignore
index 08da5a0..b530fdf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,9 @@
 *.jpeg
 *.gif
 
+# System swap file (MacOS)
+*.swp
+
 # Others
 node_modules/*
 public/*
diff --git a/setup.py b/setup.py
index accc4f3..a8f900a 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,10 @@
+from __future__ import print_function
+
 import os
 import sys
 import site
 import shutil
+from six import add_metaclass
 from distutils.sysconfig import get_python_lib
 from setuptools import setup, find_packages, Extension
 from setuptools.command.install import install as install_default
@@ -46,7 +49,7 @@ def prebuild():
 # Install
 class install(install_default):
     def run(self):
-        super(install, self).run()
+        install_default.run(self)
 
 # Check build.
 prebuild()