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

[Neal Norwitz]

More important issues:
----------------------
test_distutils leaked [0, 0, 25] references, sum=25

Less important issues:
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test_smtplib leaked [-6, 0, 6] references, sum=0
test_sys leaked [0, 42, -21] references, sum=21
test_threading leaked [48, 48, 53] references, sum=149
test_urllib2_localnet leaked [0, 284, -284] references, sum=0