bpo-42737: annotations with complex targets no longer causes any runtime effects (GH-23952)
diff --git a/Lib/test/test_future.py b/Lib/test/test_future.py
index e471558..8a09853 100644
--- a/Lib/test/test_future.py
+++ b/Lib/test/test_future.py
@@ -134,8 +134,12 @@ async def f2() -> {ann}:
...
async def g2(arg: {ann}) -> None:
...
+ class H:
+ var: {ann}
+ object.attr: {ann}
var: {ann}
var2: {ann} = None
+ object.attr: {ann}
"""
)
@@ -343,6 +347,13 @@ def test_infinity_numbers(self):
self.assertAnnotationEqual("('inf', 1e1000, 'infxxx', 1e1000j)", expected=f"('inf', {inf}, 'infxxx', {infj})")
self.assertAnnotationEqual("(1e1000, (1e1000j,))", expected=f"({inf}, ({infj},))")
+ def test_annotation_with_complex_target(self):
+ with self.assertRaises(SyntaxError):
+ exec(
+ "from __future__ import annotations\n"
+ "object.__debug__: int"
+ )
+
if __name__ == "__main__":
unittest.main()