Return iterables throughout for consistency.

CHANGES.rst

@@ -7,8 +7,8 @@
 * ``Client.query`` now accepts keyword arguments
   and parameters passed directly to Wolfram|Alpha
   as URL parameters.
-* ``Result.pods`` now returns an iterator and not
+* ``Result.pods`` and ``Pod.subpods`` now returns
-  a list.
+  an iterator and not a list.
 * ``Pod`` objects are no longer iterable. To access
   the subpods of a pod, simply use the ``Pod.subpod``
   property.

setup.py

@@ -34,7 +34,6 @@ setup_params = dict(
 	install_requires=[
 		'six',
 		'xmltodict',
-		'jaraco.functools',
 	],
 	extras_require={
 	},

wolframalpha/__init__.py

@@ -3,7 +3,6 @@ import itertools
 from six.moves import urllib, map
 
 import xmltodict
-from jaraco.functools import compose
 
 from . import compat
 
@@ -122,7 +121,7 @@ class Subpod(Document):
     Holds a specific answer or additional information relevant to said answer.
     """
     _attr_types = dict(
-        img=compose(list, Image.from_doc),
+        img=Image.from_doc,
     )
 
 
@@ -141,7 +140,7 @@ class Pod(ErrorHandler, Document):
     _attr_types = dict(
         position=float,
         numsubpods=int,
-        subpod=compose(list, Subpod.from_doc),
+        subpod=Subpod.from_doc,
     )
     def __init__(self, *args, **kwargs):
         super(Pod, self).__init__(*args, **kwargs)

wolframalpha/test_client.py

@@ -71,7 +71,8 @@ def test_pod_attributes(temp_result):
 	pod = next(temp_result.pods)
 	assert isinstance(pod.position, float)
 	assert isinstance(pod.id, six.text_type)
-	assert isinstance(pod.subpod[0].img[0].height, int)
+	img = next(next(pod.subpod).img)
+	assert isinstance(img.height, int)
 
 
 def test_invalid_app_id():