Consistently use set/frozenset for tags.

1 files changed, 6 insertions, 6 deletions

diff --git a/alot/buffers/taglist.py b/alot/buffers/taglist.py
index bb344c45..e8c8df33 100644
--- a/alot/buffers/taglist.py
+++ b/alot/buffers/taglist.py
@@ -13,8 +13,10 @@ class TagListBuffer(Buffer):
 
     modename = 'taglist'
 
-    def __init__(self, alltags=None):
-        self.tags = alltags or []
+    _tags = None
+
+    def __init__(self, tags):
+        self._tags = sorted(tags, key = str.lower)
         self.isinitialized = False
         self.rebuild()
 
@@ -28,9 +30,7 @@ class TagListBuffer(Buffer):
             self.isinitialized = True
 
         lines = list()
-        displayedtags = sorted((t for t in self.tags if t),
-                               key=str.lower)
-        for (num, b) in enumerate(displayedtags):
+        for (num, b) in enumerate(self._tags):
             if (num % 2) == 0:
                 attr = settings.get_theming_attribute('taglist', 'line_even')
             else:
@@ -50,7 +50,7 @@ class TagListBuffer(Buffer):
         self.taglist = urwid.ListBox(urwid.SimpleListWalker(lines))
         self.body = self.taglist
 
-        self.taglist.set_focus(focusposition % len(displayedtags))
+        self.taglist.set_focus(focusposition % len(self._tags))
 
     def focus_first(self):
         """Focus the first line in the tag list."""