From 3a88e49766a7b627e74c530ec3c4c46af43d5dbe Mon Sep 17 00:00:00 2001
From: Hugo <hugovk@users.noreply.github.com>
Date: Tue, 28 Nov 2017 15:40:25 +0200
Subject: [PATCH] __slots__ should be a tuple

---
 lib/extras.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/extras.py b/lib/extras.py
index 362360cf..3308f78f 100644
--- a/lib/extras.py
+++ b/lib/extras.py
@@ -264,7 +264,7 @@ class RealDictCursor(DictCursorBase):
 class RealDictRow(dict):
     """A `!dict` subclass representing a data record."""
 
-    __slots__ = '_column_mapping'
+    __slots__ = ('_column_mapping',)
 
     def __init__(self, cursor):
         dict.__init__(self)