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

[Neal Norwitz]

More important issues:
----------------------
test_threadedtempfile leaked [0, 0, 77] references, sum=77

Less important issues:
----------------------
test_cmd_line leaked [23, -23, 0] references, sum=0
test_threadsignals leaked [0, -8, 0] references, sum=-8
test_urllib2_localnet leaked [3, 127, -121] references, sum=9