Changed hashing behaviour for NormalizedVersion. Equal versions have the

same hash now. This is my understanding of what should happen given the info
at http://docs.python.org/reference/datamodel#object.__hash__

Also added tests for hashing.

Also fixed a nit in a doc string that made emacs colorize versions.py
incorrectly.

2 files changed, 12 insertions, 2 deletions

diff --git a/distutils2/tests/test_version.py b/distutils2/tests/test_version.py
index 1e392f2..35d0710 100644
--- a/distutils2/tests/test_version.py
+++ b/distutils2/tests/test_version.py
@@ -31,6 +31,15 @@ class VersionTestCase(unittest.TestCase):
         for v, s in self.versions:
             self.assertEqual(str(v), s)
 
+    def test_hash(self):
+
+        for v, s in self.versions:
+            self.assertEqual(hash(v), hash(V(s)))
+
+        versions = set([v for v,s in self.versions])
+        for v, s in self.versions:
+            self.assertIn(v, versions)
+
     def test_from_parts(self):
 
         for v, s in self.versions:
diff --git a/distutils2/version.py b/distutils2/version.py
index 64c33f7..830c0eb 100644
--- a/distutils2/version.py
+++ b/distutils2/version.py
@@ -131,7 +131,7 @@ class NormalizedVersion(object):
                        pad_zeros_length=0):
         """Parse 'N.N.N' sequences, return a list of ints.
 
-        @param s {str} 'N.N.N..." sequence to be parsed
+        @param s {str} 'N.N.N...' sequence to be parsed
         @param full_ver_str {str} The full version string from which this
             comes. Used for error strings.
         @param drop_trailing_zeros {bool} Whether to drop trailing zeros
@@ -206,7 +206,8 @@ class NormalizedVersion(object):
         return self.__eq__(other) or self.__gt__(other)
 
     # See http://docs.python.org/reference/datamodel#object.__hash__
-    __hash__ = object.__hash__
+    def __hash__(self):
+        return hash(self.parts)
 
 
 def suggest_normalized_version(s):