ENH: Introduce UnsortedIndexError pandas-dev#11897

ERR: Change error message   pandas-dev#14491

Author: Dr-Irv

pandas/core/common.py

@@ -105,7 +105,6 @@ class UnsortedIndexError(KeyError):
 
     """
     pass
-    
 
 
 class AbstractMethodError(NotImplementedError):

pandas/core/indexing.py

@@ -1814,9 +1814,9 @@ def check_bool_indexer(ax, key):
         result = result.reindex(ax)
         mask = isnull(result._values)
         if mask.any():
-            raise IndexingError('Unalignable boolean Series provided as indexer '
-                                '(index of the boolean Series and of the indexed '
-                                'object do not match')
+            raise IndexingError('Unalignable boolean Series provided as '
+                                'indexer (index of the boolean Series and of '
+                                'the indexed object do not match')
         result = result.astype(bool)._values
     elif is_sparse(result):
         result = result.to_dense()

pandas/tests/indexing/test_indexing.py

@@ -3484,8 +3484,8 @@ def test_iloc_mask(self):
                           '(index of the boolean Series and of the indexed '
                           'object do not match',
             ('locs', '.loc'): 'Unalignable boolean Series provided as indexer '
-                              '(index of the boolean Series and of the indexed '
-                              'object do not match',
+                              '(index of the boolean Series and of the '
+                              'indexed object do not match',
             ('locs', '.iloc'): ('iLocation based boolean indexing on an '
                                 'integer type is not available'),
         }