[Python-checkins] Python Regression Test Failures refleak (1)

[Neal Norwitz]

More important issues:
----------------------
test_warnings leaked [0, 0, 60] references, sum=60

Less important issues:
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test_cmd_line leaked [25, 0, 0] references, sum=25
test_smtplib leaked [-121, 0, 92] references, sum=-29
test_urllib2_localnet leaked [3, 3, 3] references, sum=9
test_xmlrpc leaked [0, 85, 0] references, sum=85