commit c5fc15685202cda73f7c3f5c6f299b0945f58508
author Pablo Galindo <Pablogsal@gmail.com> Wed Apr 22 23:29:27 2020 +0100
committer GitHub <noreply@github.com> Wed Apr 22 23:29:27 2020 +0100
tree 7624ae45b95f2812e801c5879bdbdcb796f570a6
parent a81849b0315277bb3937271174aaaa5059c0b445

bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)

Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>

Python/ast_opt.c

diff --git a/Python/ast_opt.c b/Python/ast_opt.c
index 1766321..ff786d6 100644
--- a/Python/ast_opt.c
+++ b/Python/ast_opt.c
@@ -563,7 +563,8 @@
         CALL(fold_tuple, expr_ty, node_);
         break;
     case Name_kind:
-        if (_PyUnicode_EqualToASCIIString(node_->v.Name.id, "__debug__")) {
+        if (node_->v.Name.ctx == Load &&
+                _PyUnicode_EqualToASCIIString(node_->v.Name.id, "__debug__")) {
             return make_const(node_, PyBool_FromLong(!state->optimize), ctx_);
         }
         break;