From 5175136419876d0fb1269bc81a5d3aabed785f4a Mon Sep 17 00:00:00 2001
From: Athanasius <github@miggy.org>
Date: Mon, 11 Jan 2021 15:49:08 +0000
Subject: [PATCH] plug.py: Avoid Tk event_generate() call from show_error() if
 in shutdown

---
 plug.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/plug.py b/plug.py
index 07d43dfb..98591a84 100644
--- a/plug.py
+++ b/plug.py
@@ -366,9 +366,16 @@ def notify_newdata(data, is_beta):
 def show_error(err):
     """
     Display an error message in the status line of the main window.
+
+    Will be NOP during shutdown to avoid Tk hang.
     :param err:
     .. versionadded:: 2.3.7
     """
+
+    if config.shutting_down():
+        logger.info(f'Called during shutdown: "{str(err)}"')
+        return
+
     if err and last_error['root']:
         last_error['msg'] = str(err)
         last_error['root'].event_generate('<<PluginError>>', when="tail")