Issue #14814: document the Interface APIs and fix various problems with the string representations (initial patch by Eli Bendersky).

1 files changed, 6 insertions, 3 deletions

diff --git a/Lib/ipaddress.py b/Lib/ipaddress.py
index c9338c55f3..cfc370c380 100644
--- a/Lib/ipaddress.py
+++ b/Lib/ipaddress.py
@@ -1336,7 +1336,8 @@ class IPv4Interface(IPv4Address):
 
     @property
     def with_prefixlen(self):
-        return self
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self._prefixlen)
 
     @property
     def with_netmask(self):
@@ -1948,11 +1949,13 @@ class IPv6Interface(IPv6Address):
 
     @property
     def with_prefixlen(self):
-        return self
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self._prefixlen)
 
     @property
     def with_netmask(self):
-        return self.with_prefixlen
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.netmask)
 
     @property
     def with_hostmask(self):