From 2574fa0c6b2bd6ce85028222b46c24e693ab899a Mon Sep 17 00:00:00 2001
From: Angelos Chalaris <chalarangelo@gmail.com>
Date: Mon, 19 Aug 2019 14:02:59 +0300
Subject: [PATCH] Update difference.md

---
 snippets/difference.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/snippets/difference.md b/snippets/difference.md
index 0ae57c7c4..21d09c5c1 100644
--- a/snippets/difference.md
+++ b/snippets/difference.md
@@ -2,7 +2,7 @@
 
 Returns the difference between two iterables.
 
-Use list comprehension to only keep values not contained in `b`. Use set to test `in` in `O(1)` time.
+Use list comprehension to only keep values not contained in `b`.
 
 ```python
 def difference(a, b):