From: Stan Ulbrych <stan@python.org>
Date: Thu, 11 Jun 2026 14:52:11 +0000 (+0100)
Subject: gh-151112: Fix crash in `compiler_mod()` when entering the current compilation unit... 
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=937d89c4d9b7c5fda6730a1127db118d881d13cb;p=thirdparty%2FPython%2Fcpython.git

gh-151112: Fix crash in `compiler_mod()` when entering the current compilation unit fails (#151234)
---

diff --git a/Python/compile.c b/Python/compile.c
index eb9fc827bea4..e223ef42a42e 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -893,12 +893,15 @@ compiler_mod(compiler *c, mod_ty mod)
 {
     PyCodeObject *co = NULL;
     int addNone = mod->kind != Expression_kind;
+    assert(c->u == NULL);
     if (compiler_codegen(c, mod) < 0) {
         goto finally;
     }
     co = _PyCompile_OptimizeAndAssemble(c, addNone);
 finally:
-    _PyCompile_ExitScope(c);
+    if (c->u != NULL) {
+        _PyCompile_ExitScope(c);
+    }
     return co;
 }