From: Michael Fladischer <FladischerMichael@fladi.at>
Date: Fri, 12 May 2017 20:47:00 +0200
Subject: Use io.open for Python3 support.

---
 setup.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index c9e1dd5..e06374e 100644
--- a/setup.py
+++ b/setup.py
@@ -1,8 +1,9 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+import io
 from setuptools import setup
 
-with open('requirements.txt') as f:
+with io.open('requirements.txt', encoding='utf-8') as f:
     requires = f.read().splitlines()
 
 setup(