1 files changed, 1 insertions, 4 deletions
diff --git a/Lib/test/test_popen.py b/Lib/test/test_popen.py
index 116b3dd596..da01a878fa 100644
--- a/Lib/test/test_popen.py
+++ b/Lib/test/test_popen.py
@@ -61,8 +61,5 @@ class PopenTest(unittest.TestCase):
         with os.popen(cmd="exit 0", mode="w", buffering=-1):
             pass
 
-def test_main():
-    support.run_unittest(PopenTest)
-
 if __name__ == "__main__":
-    test_main()
+    unittest.main()