From b0ea4cd391eb5dee790ff3c1c17109bac5fa424e Mon Sep 17 00:00:00 2001
From: Michael van der Kamp <michael.vanderkamp@usask.ca>
Date: Sun, 2 Jun 2024 19:09:26 -0700
Subject: [PATCH] Catch IndexError on empty Variables state

---
 pudb/debugger.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pudb/debugger.py b/pudb/debugger.py
index dc06d9ef..063f0c32 100644
--- a/pudb/debugger.py
+++ b/pudb/debugger.py
@@ -994,9 +994,12 @@ def collapse_current(var, pos, iinfo):
             return None
 
         def change_var_state(w, size, key):
-            pos = self.var_list._w.focus_position
-            var = self.var_list._w.focus
+            try:
+                pos = self.var_list._w.focus_position
+            except IndexError:
+                return
 
+            var = self.var_list._w.focus
             if var is None:
                 return