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-rw-r--r--Lib/test/test_pep352.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/test/test_pep352.py b/Lib/test/test_pep352.py
index a2b4ec8..558cdb5 100644
--- a/Lib/test/test_pep352.py
+++ b/Lib/test/test_pep352.py
@@ -38,8 +38,8 @@ class ExceptionClassTests(unittest.TestCase):
last_exc = getattr(builtins, superclass_name)
except AttributeError:
self.fail("base class %s not a built-in" % superclass_name)
- self.assertTrue(superclass_name in exc_set,
- '%s not found' % superclass_name)
+ self.assertIn(superclass_name, exc_set,
+ '%s not found' % superclass_name)
exc_set.discard(superclass_name)
superclasses = [] # Loop will insert base exception
last_depth = 0