32-bit compat

Author: jreback

pandas/core/indexes/multi.py

@@ -2094,7 +2094,7 @@ def repeat(self, repeats, axis=None):
         return MultiIndex(
             levels=self.levels,
             codes=[
-                level_codes.view(np.ndarray).repeat(repeats)
+                level_codes.view(np.ndarray).astype(np.intp).repeat(repeats)
                 for level_codes in self.codes
             ],
             names=self.names,