PEP 415: Implement suppression of __context__ display with an exception attribute
This replaces the original PEP 409 implementation. See #14133.
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 39ff85f..97762f9 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -388,18 +388,18 @@
def testChainingAttrs(self):
e = Exception()
self.assertIsNone(e.__context__)
- self.assertIs(e.__cause__, Ellipsis)
+ self.assertIsNone(e.__cause__)
e = TypeError()
self.assertIsNone(e.__context__)
- self.assertIs(e.__cause__, Ellipsis)
+ self.assertIsNone(e.__cause__)
class MyException(EnvironmentError):
pass
e = MyException()
self.assertIsNone(e.__context__)
- self.assertIs(e.__cause__, Ellipsis)
+ self.assertIsNone(e.__cause__)
def testChainingDescriptors(self):
try:
@@ -408,15 +408,16 @@
e = exc
self.assertIsNone(e.__context__)
- self.assertIs(e.__cause__, Ellipsis)
+ self.assertIsNone(e.__cause__)
+ self.assertFalse(e.__suppress_context__)
e.__context__ = NameError()
e.__cause__ = None
self.assertIsInstance(e.__context__, NameError)
self.assertIsNone(e.__cause__)
-
- e.__cause__ = Ellipsis
- self.assertIs(e.__cause__, Ellipsis)
+ self.assertTrue(e.__suppress_context__)
+ e.__suppress_context__ = False
+ self.assertFalse(e.__suppress_context__)
def testKeywordArgs(self):
# test that builtin exception don't take keyword args,