python: fix error handling

[obsolete/notmuch-old] / bindings / python / notmuch / tag.py

diff --git a/bindings/python/notmuch/tag.py b/bindings/python/notmuch/tag.py
index a77b68d7c507118dd29cbd9e8fce458585cc9b92..4881db9fa2cdae0220f0f28398e14b69c334b7c1 100644 (file)
--- a/bindings/python/notmuch/tag.py
+++ b/bindings/python/notmuch/tag.py
@@ -70,7 +70,7 @@ class Tags(object):
         :TODO: Make the iterator optionally work more than once by
                cache the tags in the Python object(?)
         """
-        if tags_p is None:
+        if not tags_p:
             raise NotmuchError(STATUS.NULL_POINTER)
 
         self._tags = tags_p
@@ -111,7 +111,10 @@ class Tags(object):
         return self._valid(self._tags) > 0
 
     def __str__(self):
-        """The str() representation of Tags() is a space separated list of tags
+        return unicode(self).encode('utf-8')
+
+    def __unicode__(self):
+        """string representation of :class:`Tags`: a space separated list of tags
 
         .. note::