test_support was renamed to support on py3k.
diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index 844e608..11674a6 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -149,7 +149,7 @@
# _candidate_tempdir_list contains the expected directories
# Make sure the interesting environment variables are all set.
- with test_support.EnvironmentVarGuard() as env:
+ with support.EnvironmentVarGuard() as env:
for envname in 'TMPDIR', 'TEMP', 'TMP':
dirname = os.getenv(envname)
if not dirname: