Update setup.py

setup.py

@@ -16,18 +16,26 @@
 import io
 import os
 import sys
+import re
+import ast
 from shutil import rmtree
 
 from setuptools import find_packages, setup, Command
 
+_version_re = re.compile(r'__version__\s+=\s+(.*)')
+
+with open('biosppy/__init__.py', 'rb') as f:
+    version = str(ast.literal_eval(_version_re.search(
+        f.read().decode('utf-8')).group(1)))
+
 # Package meta-data.
 NAME = 'biosppy'
 DESCRIPTION = 'A toolbox for biosignal processing written in Python.'
 URL = 'https://github.com/scientisst/BioSPPy'
 EMAIL = '[email protected]'
 AUTHOR = 'Instituto de Telecomunicacoes'
 REQUIRES_PYTHON = '>3.5.2'
-VERSION = '2.1.1'
+VERSION = version
 LICENSE = 'BSD 3-clause'
 
 # What packages are required for this module to be executed?