1 files changed, 1 insertions, 0 deletions
diff --git a/Python/ast.c b/Python/ast.c
index 60906a1..1cf100e 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -354,6 +354,7 @@ static const char* FORBIDDEN[] = {
     "None",
     "True",
     "False",
+    "__debug__",
     NULL,
 };