Updated README.rst and set list as default output

README.rst

@@ -43,15 +43,15 @@ tutorial
  [42, 69]
 
 
-wild
-========
+ wild
+ ========
 
-We also have a `wild` mode that treats the given `key` as a case insensitive
-substring of all the keys in the document and returns any values which match.
+ We also have a `wild` mode that treats the given `key` as a case insensitive
+ substring of all the keys in the document and returns any values which match.
 
-For example:
+ For example:
 
-.. code-block:: python
+ .. code-block:: python
 
   from nested_lookup import nested_lookup
 
@@ -66,14 +66,51 @@ For example:
 
   results = nested_lookup(
       key = 'mail',
-     document = my_document
-     wild = True,
+      document = my_document,
+      wild = True
   )
 
   print(results)
   ['test1@example.com', 'test2@example.com', 'test3@example.com']
 
 
+  output
+  ========
+
+  There are two `output` modes:
+    - `list`: the function returns a list of values corresponding to the
+    matched keys.
+    - `dict`: the function returns a `dict` with the matched keys as keys and
+    their corresponding values as values.
+
+  For example:
+
+  .. code-block:: python
+
+   from nested_lookup import nested_lookup
+
+   my_document = {
+       'name' : 'Russell Ballestrini',
+       'email_address' : 'test1@example.com',
+       'other' : {
+           'secondary_email' : 'test2@example.com',
+           'EMAIL_RECOVERY' : 'test3@example.com',
+       },
+   },
+
+   results = nested_lookup(
+       key = 'mail',
+       document = my_document,
+       wild = True,
+       output = 'dict'
+   )
+
+   print(results)
+   {'email_address': 'test1@example.com',
+   'secondary_email': 'test2@example.com',
+   'EMAIL_RECOVERY': 'test3@example.com'}
+
+
 misc
 ========
 
@@ -88,4 +125,3 @@ misc
   * http://russell.ballestrini.net
   * http://douglasmiranda.com
   * https://gist.github.com/douglasmiranda/5127251
-

nested_lookup/nested_lookup.py

@@ -1,15 +1,13 @@
 from six import iteritems
 
-def nested_lookup(key, document, wild=False, output='dict'):
+def nested_lookup(key, document, wild=False, output='list'):
     """Lookup a key in a nested document, return a list of values"""
     if output == 'dict':
         return dict(_nested_lookup(key, document, wild=wild, output=output))
-    elif output == 'list':
-        return list(_nested_lookup(key, document, wild=wild, output=output))
     else:
-        raise ValueError('Output is of unknown type '+output)
+        return list(_nested_lookup(key, document, wild=wild, output=output))
 
-def _nested_lookup(key, document, wild=False, output='dict'):
+def _nested_lookup(key, document, wild=False, output='list'):
     """Lookup a key in a nested document, yield a value"""
     if isinstance(document, list):
         for d in document:
@@ -21,7 +19,7 @@ def _nested_lookup(key, document, wild=False, output='dict'):
             if key == k or (wild and key.lower() in k.lower()):
                 if output == 'dict':
                     yield k, v
-                elif output == 'list':
+                else:
                     yield v
             elif isinstance(v, dict):
                 for result in _nested_lookup(key, v, wild=wild, output=output):