ENH: raise NotImplementedError if user tries to iterate over .ix, GH #840

Author: wesm

pandas/core/indexing.py

@@ -20,6 +20,9 @@ def __init__(self, obj):
         self.obj = obj
         self.ndim = obj.ndim
 
+    def __iter__(self):
+        raise NotImplementedError('ix is not iterable')
+
     def __getitem__(self, key):
         if isinstance(key, tuple):
             try:

setup.py

@@ -2,9 +2,8 @@
 
 """
 Parts of this file were taken from the pyzmq project
-(https://github.com/zeromq/pyzmq) and hence are subject to the terms of the
-Lesser GNU General Public License.
-Parts are from lxml (https://github.com/lxml/lxml)
+(https://github.com/zeromq/pyzmq) which have been permitted for use under the
+BSD license. Parts are from lxml (https://github.com/lxml/lxml)
 """
 
 from datetime import datetime