Jan 28, 2020 · Jan 28, 2020
diff --git a/lib/matplotlib/backends/backend_qt5.py b/lib/matplotlib/backends/backend_qt5.py
    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
            ifold_signal:
            ifis_python_signal_handler:
                signal.signal(signal.SIGINT, old_signal)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1043,11 +1043,12 @@ 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
		ifold_signal:
		ifis_python_signal_handler:
		signal.signal(signal.SIGINT, old_signal)