From bd31bc3df64247bd273cfc4f3dc3934fffe5cc13 Mon Sep 17 00:00:00 2001
From: Sergey Petrov <git@pr0ger.org>
Date: Wed, 9 May 2018 16:25:38 +0300
Subject: [PATCH] Fix broken Python 2 compatibility

---
 apns2/errors.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apns2/errors.py b/apns2/errors.py
index c1e7034..d86b59c 100644
--- a/apns2/errors.py
+++ b/apns2/errors.py
@@ -129,7 +129,7 @@ class Unregistered(APNsException):
     """The device token is inactive for the specified topic."""
 
     def __init__(self, timestamp=None):
-        super().__init__()
+        super(Unregistered, self).__init__()
 
         self.timestamp = timestamp