Merged revisions 72489 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r72489 | gregory.p.smith | 2009-05-08 16:16:47 -0700 (Fri, 08 May 2009) | 3 lines
Fix an off by one error on negative indexs to __getitem__
http://code.google.com/p/ipaddr-py/issues/detail?id=15
........
diff --git a/Lib/ipaddr.py b/Lib/ipaddr.py
index e0966c6..ef61f85 100644
--- a/Lib/ipaddr.py
+++ b/Lib/ipaddr.py
@@ -209,6 +209,7 @@
raise IndexError
return self._string_from_ip_int(self.network + n)
else:
+ n += 1
if self.broadcast + n < self.network:
raise IndexError
return self._string_from_ip_int(self.broadcast + n)
diff --git a/Lib/test/test_ipaddr.py b/Lib/test/test_ipaddr.py
index b0fda04..afa8da3 100755
--- a/Lib/test/test_ipaddr.py
+++ b/Lib/test/test_ipaddr.py
@@ -274,6 +274,17 @@
self.assertEqual(self.ipv6[5],
'2001:658:22a:cafe::5')
+ def test_getitem(self):
+ # http://code.google.com/p/ipaddr-py/issues/detail?id=15
+ addr = ipaddr.IPv4('172.31.255.128/255.255.255.240')
+ self.assertEqual(28, addr.prefixlen)
+ addr_list = list(addr)
+ self.assertEqual('172.31.255.128', addr_list[0])
+ self.assertEqual('172.31.255.128', addr[0])
+ self.assertEqual('172.31.255.143', addr_list[-1])
+ self.assertEqual('172.31.255.143', addr[-1])
+ self.assertEqual(addr_list[-1], addr[-1])
+
def test_equals(self):
self.assertTrue(self.ipv4 == ipaddr.IPv4('1.2.3.4/24'))
self.assertFalse(self.ipv4 == ipaddr.IPv4('1.2.3.4/23'))