From 82857a6481e67dd58606dacaecc2d4822d27c1a8 Mon Sep 17 00:00:00 2001
From: Bob Halley <halley@dnspython.org>
Date: Tue, 15 Nov 2016 06:05:49 -0800
Subject: [PATCH] Fix trailing 0 suppression bug reintroduced in py2/py3 merge,
 and do not break py2 either!

---
 dns/_compat.py        | 4 ++++
 dns/rdtypes/IN/APL.py | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/dns/_compat.py b/dns/_compat.py
index 956f9a13..e78b2883 100644
--- a/dns/_compat.py
+++ b/dns/_compat.py
@@ -19,6 +19,8 @@ if sys.version_info > (3,):
         return x.decode()
     def maybe_encode(x):
         return x.encode()
+    def maybe_chr(x):
+        return x
 else:
     text_type = unicode  # pylint: disable=unicode-builtin, undefined-variable
     binary_type = str
@@ -30,6 +32,8 @@ else:
         return x
     def maybe_encode(x):
         return x
+    def maybe_chr(x):
+        return chr(x)
 
 
 def round_py2_compat(what):
diff --git a/dns/rdtypes/IN/APL.py b/dns/rdtypes/IN/APL.py
index 82531688..2bd4ce5a 100644
--- a/dns/rdtypes/IN/APL.py
+++ b/dns/rdtypes/IN/APL.py
@@ -20,7 +20,7 @@ import dns.exception
 import dns.inet
 import dns.rdata
 import dns.tokenizer
-from dns._compat import xrange
+from dns._compat import xrange, maybe_chr
 
 
 class APLItem(object):
@@ -63,7 +63,7 @@ class APLItem(object):
         #
         last = 0
         for i in xrange(len(address) - 1, -1, -1):
-            if address[i] != 0:
+            if address[i] != maybe_chr(0):
                 last = i + 1
                 break
         address = address[0: last]
-- 
2.47.3