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

[Neal Norwitz]

More important issues:
----------------------
test_io leaked [61, 61, 61] references, sum=183

Less important issues:
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test_asynchat leaked [108, -108, 0] references, sum=0
test_smtplib leaked [86, -86, 0] references, sum=0
test_socketserver leaked [-82, 0, 0] references, sum=-82
test_threadsignals leaked [-8, 0, 0] references, sum=-8
test_urllib2_localnet leaked [3, 3, 3] references, sum=9