Attempting to fix some stuff

shallow_copy appears to no longer accept tz...

Author: kirkhansen

pandas/core/indexes/datetimelike.py

@@ -31,7 +31,7 @@
 
 from pandas.tseries.offsets import index_offsets_equal
 import pandas.tseries.frequencies as frequencies
-
+import pandas.core.indexes.api as _api
 
 _index_doc_kwargs = dict(ibase._index_doc_kwargs)
 
@@ -635,7 +635,8 @@ 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:
@@ -648,7 +649,6 @@ 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:
@@ -657,9 +657,9 @@ 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 wrap_arithmetic_op(self, other, result):
  if result is NotImplemented: