Use assertRaises.

diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index 994e10be7d88d1958bc78aabe0b0424121860d03..1674b9757555f61afa2d4062f635986bb330e4f2 100644 (file)
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -275,12 +275,7 @@ class ASTHelpers_Test(unittest.TestCase):
         self.assertEqual(ast.literal_eval('2j'), 2j)
         self.assertEqual(ast.literal_eval('10 + 2j'), 10 + 2j)
         self.assertEqual(ast.literal_eval('1.5 - 2j'), 1.5 - 2j)
-        try:
-            ast.literal_eval('2 + (3 + 4j)')
-        except ValueError:
-            pass
-        else:
-            self.fail('expected value error')
+        self.assertRaises(ValueError, ast.literal_eval, '2 + (3 + 4j)')
 
 
 def test_main():