1 files changed, 4 insertions, 0 deletions
diff --git a/Include/internal/pycore_frame.h b/Include/internal/pycore_frame.h
index e4eb893..af181e3 100644
--- a/Include/internal/pycore_frame.h
+++ b/Include/internal/pycore_frame.h
@@ -26,6 +26,10 @@ struct _frame {
     char f_trace_lines;         /* Emit per-line trace events? */
     char f_trace_opcodes;       /* Emit per-opcode trace events? */
     PyObject *f_extra_locals;   /* Dict for locals set by users using f_locals, could be NULL */
+    /* This is purely for backwards compatibility for PyEval_GetLocals.
+       PyEval_GetLocals requires a borrowed reference so the actual reference
+       is stored here */
+    PyObject *f_locals_cache;
     /* The frame data, if this frame object owns the frame */
     PyObject *_f_frame_data[1];
 };