Adding Python 3 support and fixed Python 2.6 bug.

setup.py

@@ -31,4 +31,7 @@
     keywords='weakref WeakMethod',
     tests_require=['unittest2'],
     test_suite='test_weakmethod',
+    extra_requires={
+        'test': ["tox"]
+    }
 )

tox.ini

@@ -0,0 +1,8 @@
+[tox]
+envlist = py26, py27, py32, py33
+
+[testenv]
+commands =
+    unit2
+deps =
+    unittest2

weakrefmethod/__init__.py

@@ -1,2 +1,2 @@
-from _version import __version__
-from weakrefmethod import WeakMethod
+from ._version import __version__
+from .weakrefmethod import WeakMethod

weakrefmethod/weakrefmethod.py

@@ -46,10 +46,6 @@ def __eq__(self, other):
         return False
 
     def __ne__(self, other):
-        if isinstance(other, WeakMethod):
-            if not self._alive or not other._alive:
-                return self is not other
-            return weakref.ref.__ne__(self, other) or self._func_ref != other._func_ref
-        return True
+        return not self.__eq__(other)
 
     __hash__ = weakref.ref.__hash__