impl syntaxerror

youknowone · youknowone · commit fd03d9784deb · 2025-12-26T09:49:00.000+09:00
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
@@ -1536,8 +1536,6 @@ def test_try_except_as(self):
             """
         self.check_stack_size(snippet)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_try_except_star_qualified(self):
         snippet = """
             try:
@@ -1549,8 +1547,6 @@ def test_try_except_star_qualified(self):
             """
         self.check_stack_size(snippet)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_try_except_star_as(self):
         snippet = """
             try:
@@ -1562,8 +1558,6 @@ def test_try_except_star_as(self):
             """
         self.check_stack_size(snippet)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_try_except_star_finally(self):
         snippet = """
                 try:
diff --git a/crates/codegen/src/compile.rs b/crates/codegen/src/compile.rs
@@ -2164,6 +2164,15 @@ impl Compiler {
 
             // Compile exception type
             if let Some(exc_type) = type_ {
+                // Check for unparenthesized tuple (e.g., `except* A, B:` instead of `except* (A, B):`)
+                if let Expr::Tuple(ExprTuple { elts, range, .. }) = exc_type.as_ref()
+                    && let Some(first) = elts.first()
+                    && range.start().to_u32() == first.range().start().to_u32()
+                {
+                    return Err(self.error(CodegenErrorType::SyntaxError(
+                        "multiple exception types must be parenthesized".to_owned(),
+                    )));
+                }
                 self.compile_expression(exc_type)?;
             } else {
                 return Err(self.error(CodegenErrorType::SyntaxError(
