From 026019f89bf6669593d458dfa3ad9fc7b8d78bc2 Mon Sep 17 00:00:00 2001
From: Yury Selivanov <yselivanov@sprymix.com>
Date: Tue, 18 Feb 2014 12:49:41 -0500
Subject: Mangle __parameters in __annotations__ dict properly. Issue #20625.

---
 Python/compile.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'Python/compile.c')

diff --git a/Python/compile.c b/Python/compile.c
index a7ddc5a11ac..57a232919d3 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -1533,8 +1533,14 @@ compiler_visit_argannotation(struct compiler *c, identifier id,
 {
     if (annotation) {
         VISIT(c, expr, annotation);
-        if (PyList_Append(names, id))
+        PyObject *mangled = _Py_Mangle(c->u->u_private, id);
+        if (!mangled)
             return -1;
+        if (PyList_Append(names, mangled) < 0) {
+            Py_DECREF(mangled);
+            return -1;
+        }
+        Py_DECREF(mangled);
     }
     return 0;
 }
-- 
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