bpo-12022: Change error type for bad objects in "with" and "async with" (GH-26809)

A TypeError is now raised instead of an AttributeError in
"with" and "async with" statements for objects which do not
support the context manager or asynchronous context manager
protocols correspondingly.

1 files changed, 3 insertions, 3 deletions

diff --git a/Lib/test/test_coroutines.py b/Lib/test/test_coroutines.py
index a6a199e323..9b83244b50 100644
--- a/Lib/test/test_coroutines.py
+++ b/Lib/test/test_coroutines.py
@@ -1212,7 +1212,7 @@ class CoroutineTest(unittest.TestCase):
             async with CM():
                 body_executed = True
 
-        with self.assertRaisesRegex(AttributeError, '__aexit__'):
+        with self.assertRaisesRegex(TypeError, 'asynchronous context manager.*__aexit__'):
             run_async(foo())
         self.assertIs(body_executed, False)
 
@@ -1228,7 +1228,7 @@ class CoroutineTest(unittest.TestCase):
             async with CM():
                 body_executed = True
 
-        with self.assertRaisesRegex(AttributeError, '__aenter__'):
+        with self.assertRaisesRegex(TypeError, 'asynchronous context manager'):
             run_async(foo())
         self.assertIs(body_executed, False)
 
@@ -1243,7 +1243,7 @@ class CoroutineTest(unittest.TestCase):
             async with CM():
                 body_executed = True
 
-        with self.assertRaisesRegex(AttributeError, '__aenter__'):
+        with self.assertRaisesRegex(TypeError, 'asynchronous context manager'):
             run_async(foo())
         self.assertIs(body_executed, False)