Add Python module version attributes

python/mcnptools/__init__.py

@@ -1,3 +1,6 @@
+__version_info__ = (5, 3, 1)
+__version__ = ".".join(map(str, __version_info__))
+
 from .mcnptools_wrap import Mctal, MctalTally, MctalKcode, \
   Meshtal, MeshtalTally, \
   Ptrac, PtracHistory, PtracEvent, PtracNps, \

python/mcnptools_tests/__init__.py

@@ -2,3 +2,4 @@
 from . import meshtaltests
 from . import bin_ptractests
 from . import asc_ptractests
+from . import versiontests

python/mcnptools_tests/versiontests.py

@@ -0,0 +1,9 @@
+import unittest
+import mcnptools
+
+
+class TestVersion(unittest.TestCase):
+  def testVersionInfo(self):
+    self.assertEqual(mcnptools.__version_info__, (5, 3, 1))
+    self.assertEqual(mcnptools.__version__, "5.3.1")
+    self.assertEqual(mcnptools.__version__, ".".join(map(str, mcnptools.__version_info__)))