Jan 9, 2023 · Dec 29, 2022 · Dec 29, 2022 · Dec 29, 2022 · Dec 29, 2022 · Dec 29, 2022
diff --git a/Lib/test/test_frame.py b/Lib/test/test_frame.py
 import gc
 import operator
 import re
 import sys
 import textwrap
            )
            sneaky_frame_object = sneaky_frame_object.f_back

    def test_entry_frames_are_invisible_during_teardown(self):
        class C:
            """A weakrefable class."""

        def f():
            """Try to find globals and locals as this frame is being cleared."""
            ref = C()
            # Ignore the fact that exec(C()) is a nonsense callback. We're only
            # using exec here because it tries to access the current frame's
            # globals and locals. If it's trying to get those from a shim frame,
            # we'll crash before raising:
            return weakref.ref(ref, exec)

        with support.catch_unraisable_exception() as catcher:
            # Call from C, so there is a shim frame directly above f:
            weak = operator.call(f)  # BOOM!
            # Cool, we didn't crash. Check that the callback actually happened:
            self.assertIs(catcher.unraisable.exc_type, TypeError)
        self.assertIsNone(weak())

 @unittest.skipIf(_testcapi is None, 'need _testcapi')
 class TestCAPI(unittest.TestCase):
    def getframe(self):
Original file line number	Diff line number	Diff line change
		@@ -1,4 +1,5 @@
		import gc
		import operator
		import re
		import sys
		import textwrap
Expand DownExpand Up		@@ -372,6 +373,26 @@ def run(self):
		)
		sneaky_frame_object = sneaky_frame_object.f_back

		def test_entry_frames_are_invisible_during_teardown(self):
		class C:
		"""A weakrefable class."""

		def f():
		"""Try to find globals and locals as this frame is being cleared."""
		ref = C()
		# Ignore the fact that exec(C()) is a nonsense callback. We're only
		# using exec here because it tries to access the current frame's
		# globals and locals. If it's trying to get those from a shim frame,
		# we'll crash before raising:
		return weakref.ref(ref, exec)

		with support.catch_unraisable_exception() as catcher:
		# Call from C, so there is a shim frame directly above f:
		weak = operator.call(f) # BOOM!
		# Cool, we didn't crash. Check that the callback actually happened:
		self.assertIs(catcher.unraisable.exc_type, TypeError)
		self.assertIsNone(weak())

		@unittest.skipIf(_testcapi is None, 'need _testcapi')
		class TestCAPI(unittest.TestCase):
		def getframe(self):
Expand Down