bpo-43149: Improve error message for exception group without parentheses (GH-24467)
diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
index 70dd22c..47df057 100644
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -835,6 +835,39 @@
...
SyntaxError: invalid syntax
+Check that an exception group with missing parentheses
+raise a custom exception
+
+ >>> try:
+ ... pass
+ ... except A, B:
+ ... pass
+ Traceback (most recent call last):
+ SyntaxError: exception group must be parenthesized
+
+ >>> try:
+ ... pass
+ ... except A, B, C:
+ ... pass
+ Traceback (most recent call last):
+ SyntaxError: exception group must be parenthesized
+
+ >>> try:
+ ... pass
+ ... except A, B, C as blech:
+ ... pass
+ Traceback (most recent call last):
+ SyntaxError: exception group must be parenthesized
+
+ >>> try:
+ ... pass
+ ... except A, B, C as blech:
+ ... pass
+ ... finally:
+ ... pass
+ Traceback (most recent call last):
+ SyntaxError: exception group must be parenthesized
+
>>> f(a=23, a=234)
Traceback (most recent call last):