From cd5d0b617e9a7670ebe8139dd0e36b3327e4970a Mon Sep 17 00:00:00 2001
From: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
Date: Sun, 26 Jan 2020 10:58:51 +0100
Subject: [PATCH] Clearer signal handling
---
lib/matplotlib/backends/backend_qt5.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/matplotlib/backends/backend_qt5.py b/lib/matplotlib/backends/backend_qt5.py
index 254b39dc7a3a..70aaa4d9025d 100644
--- a/lib/matplotlib/backends/backend_qt5.py
+++ b/lib/matplotlib/backends/backend_qt5.py
@@ -1034,11 +1034,12 @@ def trigger_manager_draw(manager):
def mainloop():
old_signal = signal.getsignal(signal.SIGINT)
# allow SIGINT exceptions to close the plot window.
- if old_signal:
+ is_python_signal_handler = old_signal is not None
+ if is_python_signal_handler:
signal.signal(signal.SIGINT, signal.SIG_DFL)
try:
qApp.exec_()
finally:
# reset the SIGINT exception handler
- if old_signal:
+ if is_python_signal_handler:
signal.signal(signal.SIGINT, old_signal)
pFad - Phonifier reborn
Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.
Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.
Alternative Proxies:
Alternative Proxy
pFad Proxy
pFad v3 Proxy
pFad v4 Proxy