Issue #19437: Fix compiler_class(), handle compiler_lookup_arg() failure

98e818b8 · Victor Stinner · 357f5155 · 98e818b8
Commit 98e818b8 authored Nov 05, 2013 by Victor Stinner
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Python/compile.c Python/compile.c +4 -0

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--- a/Python/compile.c
+++ b/Python/compile.c
@@ -1772,6 +1772,10 @@ compiler_class(struct compiler *c, stmt_ty s)
            }
            i = compiler_lookup_arg(c->u->u_cellvars, str);
            Py_DECREF(str);
+            if (i < 0) {
+                compiler_exit_scope(c);
+                return 0;
+            }
            assert(i == 0);
            /* Return the cell where to store __class__ */
            ADDOP_I(c, LOAD_CLOSURE, i);