Add pprint and pformat helper methods

Because of munch - using pprint directly is weird. Make a helper
method that does what the user expects.

Change-Id: I617b75034a59118c170895ad20b86fb8a1eab386

shade/_utils.py

@@ -95,6 +95,16 @@ def _make_unicode(input):
         return str(input)
 
 
+def _dictify_resource(resource):
+    if isinstance(resource, list):
+        return [_dictify_resource(r) for r in resource]
+    else:
+        if hasattr(resource, 'toDict'):
+            return resource.toDict()
+        else:
+            return resource
+
+
 def _filter_list(data, name_or_id, filters):
     """Filter a list by name/ID and arbitrary meta data.
 

shade/openstackcloud.py

@@ -528,6 +528,20 @@ class OpenStackCloud(_normalize.Normalizer):
             self._raw_clients['volume'] = self._get_raw_client('volume')
         return self._raw_clients['volume']
 
+    def pprint(self, resource):
+        """Wrapper aroud pprint that groks munch objects"""
+        # import late since this is a utility function
+        import pprint
+        new_resource = _utils._dictify_resource(resource)
+        pprint.pprint(new_resource)
+
+    def pformat(self, resource):
+        """Wrapper aroud pformat that groks munch objects"""
+        # import late since this is a utility function
+        import pprint
+        new_resource = _utils._dictify_resource(resource)
+        return pprint.pformat(new_resource)
+
     @property
     def nova_client(self):
         if self._nova_client is None: