Now correctly resolve Warnings and Assumptions.

Fixes #29

newsfragments/29.bugfix.rst

@@ -0,0 +1 @@
+Now correctly resolve Warnings and Assumptions.

tests/test_client.py

@@ -44,6 +44,13 @@ def test_properties(temp_result):
     assert len(info) == len(pods) + len(warnings) + len(assumptions)
 
 
+def test_assumptions(client):
+    res = client.query('pi')
+    (assumption,) = res.assumptions
+    assert assumption.word == 'pi'
+    assert assumption.type == 'Clash'
+
+
 def test_pod_attributes(temp_result):
     pod = next(temp_result.pods)
     assert isinstance(pod.position, float)

wolframalpha/__init__.py

@@ -189,12 +189,14 @@ def _get_attr(self, name):
     def _get_children(self, name):
         if name not in self.__class__.children:
             return
+
+        # some objects, like Assumptions and Warnings
+        # are found in a container with the plural name;
+        # others like Pods and Subpods appear directly in
+        # the parent (self).
+        container = self.get(name, self)
         singular = name.rstrip('s')
-        try:
-            val = self._get_attr(singular)
-        except AttributeError:
-            val = None
-        return always_iterable(val, base_type=dict)
+        return always_iterable(container.get(singular), base_type=dict)
 
 
 class Assumption(Document):