FIX: DataFrame.__ne__ was not implemented

Author: wesm

pandas/core/frame.py

@@ -315,6 +315,7 @@ def __neg__(self):
     # Comparison methods
 
     __eq__ = comp_method(operator.eq, '__eq__')
+    __ne__ = comp_method(operator.ne, '__ne__')
     __lt__ = comp_method(operator.lt, '__lt__')
     __gt__ = comp_method(operator.gt, '__gt__')
     __le__ = comp_method(operator.le, '__le__')

pandas/core/generic.py

@@ -53,7 +53,10 @@ class NDFrame(Picklable):
 
     def __init__(self, data, axes=None, copy=False):
         self._data = data
-        self.axes = axes
+
+    @property
+    def axes(self):
+        return self._data.axes
 
     def __repr__(self):
         # TODO

pandas/tests/test_frame.py

@@ -1191,6 +1191,7 @@ def test_comp(func):
             self.assertRaises(Exception, func, self.simple, self.simple[:2])
 
         test_comp(operator.eq)
+        test_comp(operator.ne)
         test_comp(operator.lt)
         test_comp(operator.gt)
         test_comp(operator.ge)