Attempting to fix some stuff

shallow_copy appears to no longer accept tz...

Author: kirkhansen

pandas/core/indexes/datetimelike.py

@@ -42,7 +42,7 @@
 import pandas.tseries.frequencies as frequencies
 from pandas.util._decorators import Appender, cache_readonly
 import pandas.core.dtypes.concat as _concat
-
+import pandas.core.indexes.api as _api
 
 import pandas.core.indexes.base as ibase
 _index_doc_kwargs = dict(ibase._index_doc_kwargs)
@@ -804,7 +804,8 @@ def intersection(self, other):
         self._assert_can_do_setop(other)
 
         if self.equals(other):
-            return self._get_consensus_name(other)
+            name = _api._get_consensus_names((self, other))[0]
+            return self._shallow_copy(self, name=name)
 
         lengths = len(self), len(other)
         if lengths[0] == 0:
@@ -817,7 +818,6 @@ def intersection(self, other):
                 not other._is_strictly_monotonic)):
             result = Index.intersection(self, other)
             result = self._shallow_copy(result._values, name=result.name,
-                                        tz=getattr(self, 'tz', None),
                                         freq=None
                                         )
             if result.freq is None:
@@ -826,9 +826,9 @@ def intersection(self, other):
 
         # Conditions met!
         intersected_slice = self._fast_intersection(other)
-        intersected = self._shallow_copy(intersected_slice)
-        return intersected._get_consensus_name(other)
-
+        name = _api._get_consensus_names((self, other))[0]
+        intersected = self._shallow_copy(intersected_slice, name=name)
+        return intersected
 
 def _ensure_datetimelike_to_i8(other, to_utc=False):
     """