use pathlib (pypa#128)

Author: ju-sh

setup.py

@@ -7,13 +7,12 @@
 
 # Always prefer setuptools over distutils
 from setuptools import setup, find_packages
-from os import path
+import pathlib
 
-here = path.abspath(path.dirname(__file__))
+here = pathlib.Path(__file__).parent.resolve()
 
 # Get the long description from the README file
-with open(path.join(here, 'README.md'), encoding='utf-8') as f:
-    long_description = f.read()
+long_description = (here / 'README.md').read_text(encoding='utf-8')
 
 # Arguments marked as "Required" below must be included for upload to PyPI.
 # Fields marked as "Optional" may be commented out.