From 610e8ca75ca9ad8fd70c88a4785965cd5e0fd5dd Mon Sep 17 00:00:00 2001
From: Alireza Savand <alireza.savand@gmail.com>
Date: Thu, 22 Sep 2016 13:10:02 +0400
Subject: [PATCH] Better to check of existence of `signature`

---
 rest_framework/compat.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rest_framework/compat.py b/rest_framework/compat.py
index 2f7961ca2..c278448fd 100644
--- a/rest_framework/compat.py
+++ b/rest_framework/compat.py
@@ -141,7 +141,7 @@ def value_from_object(field, obj):
 
 
 def getargspec(obj):  # type: tuple
-    if six.PY2:
+    if not hasattr(inspect, 'signature'):
         parameters, _, _, defaults = inspect.getargspec(obj)
     else:
         signature = inspect.signature(obj)