From 7b2bc1bc38f583f8ce37c93a3b7935a02e7332ed Mon Sep 17 00:00:00 2001
From: Markus Unterwaditzer <markus@unterwaditzer.net>
Date: Sat, 20 Dec 2014 03:00:29 +0100
Subject: [PATCH] Add docstring

---
 vdirsyncer/utils/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vdirsyncer/utils/__init__.py b/vdirsyncer/utils/__init__.py
index ee8132e..b206b13 100644
--- a/vdirsyncer/utils/__init__.py
+++ b/vdirsyncer/utils/__init__.py
@@ -58,6 +58,9 @@ def split_sequence(s, f):
 
 
 def uniq(s):
+    '''Filter duplicates while preserving order. ``set`` can almost always be
+    used instead of this, but preserving order might prove useful for
+    debugging.'''
     d = set()
     for x in s:
         if x not in d: