py3: conditionalize xmlrpclib import

The xmlrpclib library is renamed to xmlrpc.client in python 3

hgext/bugzilla.py

@@ -281,7 +281,6 b' from __future__ import absolute_import'
 
 import re
 import time
-import xmlrpclib
 
 from mercurial.i18n import _
 from mercurial.node import short
@@ -293,6 +292,7 b' from mercurial import ('
 )
 
 urlparse = util.urlparse
+xmlrpclib = util.xmlrpclib
 
 # Note for extension authors: ONLY specify testedwith = 'internal' for
 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should

mercurial/pycompat.py

@@ -18,6 +18,13 b' except ImportError:'
     pickle.dumps # silence pyflakes
 
 try:
+    import xmlrpclib
+    xmlrpclib.Transport
+except ImportError:
+    import xmlrpc.client as xmlrpclib
+    xmlrpclib.Transport
+
+try:
     import urlparse
     urlparse.urlparse
 except ImportError:

mercurial/util.py

@@ -54,6 +54,7 b' for attr in ('
     # we do import urlreq, but we do it outside the loop
     #'urlreq',
     'stringio',
+    'xmlrpclib',
 ):
     globals()[attr] = getattr(pycompat, attr)
 

tests/test-check-py3-compat.t

@@ -26,7 +26,7 b''
   doc/hgmanpage.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
   hgext/automv.py: error importing module: <SyntaxError> invalid syntax (commands.py, line *) (line *) (glob)
   hgext/blackbox.py: error importing: <AttributeError> 'dict' object has no attribute 'iteritems' (error at revset.py:*) (glob)
-  hgext/bugzilla.py: error importing module: <ImportError> No module named 'xmlrpclib' (line *) (glob)
+  hgext/bugzilla.py: error importing: <AttributeError> 'dict' object has no attribute 'iteritems' (error at revset.py:*) (glob)
   hgext/censor.py: error importing: <AttributeError> 'dict' object has no attribute 'iteritems' (error at revset.py:*) (glob)
   hgext/chgserver.py: error importing module: <ImportError> No module named 'SocketServer' (line *) (glob)
   hgext/children.py: error importing: <AttributeError> 'dict' object has no attribute 'iteritems' (error at revset.py:*) (glob)