The example is defined as:

import xmlrpc.client

proxy = xmlrpc.client.ServerProxy("http://localhost:8000/")
try:
    proxy.add(2, 5)
except xmlrpc.client.Fault, err:
    print("A fault occurred")
    print("Fault code: %d" % err.faultCode)
    print("Fault string: %s" % err.faultString)

Which throws the following error:

File "test.py", line 6
except xmlrpc.client.Fault, err:
^
SyntaxError: invalid syntax

I think it should be defined instead as:

import xmlrpc.client

proxy = xmlrpc.client.ServerProxy("http://localhost:8000/")
try:
    proxy.add(2, 5)
except xmlrpc.client.Fault as err:
    print("A fault occurred")
    print("Fault code: %d" % err.faultCode)
    print("Fault string: %s" % err.faultString)

On the same documentation page for Python 3.1b1 it shows a similar error
for the ProtocolError example:

import xmlrpc.client

# create a ServerProxy with an invalid URI
proxy = xmlrpc.client.ServerProxy("http://invalidaddress/")

try:
proxy.some_method()
except xmlrpc.client.ProtocolError, err:
print("A protocol error occurred")
print("URL: %s" % err.url)
print("HTTP/HTTPS headers: %s" % err.headers)
print("Error code: %d" % err.errcode)
print("Error message: %s" % err.errmsg)

Throws this error:

File "proto.py", line 8
except xmlrpc.client.ProtocolError, err:
^
SyntaxError: invalid syntax

Which should be fixed with:

import xmlrpc.client

# create a ServerProxy with an invalid URI
proxy = xmlrpc.client.ServerProxy("http://invalidaddress/")

try:
proxy.some_method()
except xmlrpc.client.ProtocolError as err:
print("A protocol error occurred")
print("URL: %s" % err.url)
print("HTTP/HTTPS headers: %s" % err.headers)
print("Error code: %d" % err.errcode)
print("Error message: %s" % err.errmsg)

Updated ticket title since it's for multiple sections in the
documentation, not just the Fault example.

Thanks, fixed in r72832.