Follow up to PR #70, fix Python 2.x

Pavel Perestoronin · Pavel Perestoronin · commit dc973737df2d · 2018-12-11T00:08:53.000+01:00
diff --git a/setup.py b/setup.py
@@ -1,11 +1,13 @@
+import io
+
 from setuptools import find_packages, setup
 
 setup(
     name='python-smpplib',
     version='1.1',
     url='https://github.com/podshumok/python-smpplib',
     description='SMPP library for python',
-    long_description=open('README.md', 'rt', encoding='utf-8').read(),
+    long_description=io.open('README.md', 'rt', encoding='utf-8').read(),
     long_description_content_type='text/markdown',
     packages=find_packages(),
     install_requires=['six'],
