diff -up ikiwiki-3.20180105/plugins/proxy.py.orig ikiwiki-3.20180105/plugins/proxy.py
--- ikiwiki-3.20180105/plugins/proxy.py.orig	2018-01-29 22:28:59.344175943 +0100
+++ ikiwiki-3.20180105/plugins/proxy.py	2018-01-29 22:29:56.832575125 +0100
@@ -39,13 +39,13 @@ __licence__ = 'BSD-2-clause'
 import sys
 import time
 import xml.parsers.expat
-try:  # Python 3
+if sys.version_info >= (3, 0):
     import xmlrpc.client as _xmlrpc_client
-except ImportError:  # Python 2
+else:
     import xmlrpclib as _xmlrpc_client
-try:  # Python 3
+if sys.version_info >= (3, 0):
     import xmlrpc.server as _xmlrpc_server
-except ImportError:  # Python 2
+else:
     import SimpleXMLRPCServer as _xmlrpc_server