From ea8cda0529181b16a8e9d97846867bbda50c85c5 Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Sun, 31 Mar 2019 16:31:15 +0200
Subject: [PATCH] bpo-36494: bdb.Bdb.set_trace: set frame.f_trace_lines = True

---
 Lib/bdb.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Lib/bdb.py b/Lib/bdb.py
index ec0f92c06a787c..6ff947af4c3e0f 100644
--- a/Lib/bdb.py
+++ b/Lib/bdb.py
@@ -328,6 +328,7 @@ def set_trace(self, frame=None):
         self.reset()
         while frame:
             frame.f_trace = self.trace_dispatch
+            frame.f_trace_lines = True
             self.botframe = frame
             frame = frame.f_back
         self.set_step()