Have regrtest skip test_py3kwarn when the -3 flag is missing.
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 16f23f3..f8eac8c 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -1164,6 +1164,14 @@
self.expected.add('test_sunaudiodev')
self.expected.add('test_nis')
+ # TODO: This is a hack to raise TestSkipped if -3 is not enabled.
+ # Instead of relying on callable to have a warning, we should expose
+ # the -3 flag to Python code somehow
+ with test_support.catch_warning() as w:
+ callable(int)
+ if w.message is None:
+ self.expected.add('test_py3kwarn')
+
self.valid = True
def isvalid(self):