I know why those two tests run failed, and I found another way to solve the problem, do not make the existing tests broken, and at the same time I have added another test case.
I encountered this problem due to a argument is already being a tuple but re-packaged into another tuple, It appears a high probability. Maybe modify the client.py according to this patch is a solution.

2010/2/22 Florent Xicluna <report@bugs.python.org>

Florent Xicluna <laxyf@yahoo.fr> added the comment:

Attached, the output of the test with "-v test_xmlrpc".

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Added file: http://bugs.python.org/file16308/issue7977_test_xmlrpc.log

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<http://bugs.python.org/issue7977>
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