Issue #25985: sys.version_info is now used instead of sys.version
to format short Python version.
diff --git a/Lib/xmlrpc/client.py b/Lib/xmlrpc/client.py
index bf42835..07a4f03 100644
--- a/Lib/xmlrpc/client.py
+++ b/Lib/xmlrpc/client.py
@@ -151,7 +151,7 @@
     return s.replace(">", ">",)
 
 # used in User-Agent header sent
-__version__ = sys.version[:3]
+__version__ = '%d.%d' % sys.version_info[:2]
 
 # xmlrpc integer limits
 MAXINT =  2**31-1