TST: Automate test for version in python wrapper.

py/test/test_version.py

@@ -2,11 +2,12 @@
 import unittest
 from pyiapws.version import __version__
 
-
 class TestVersion(unittest.TestCase):
     r"""Test version module."""
 
     def test_version(self):
+        expected = None
+        with open("VERSION", "r") as f:
+            expected = f.read().strip()
         value = __version__
-        expected = "0.3.0"
         self.assertEqual(value, expected)