Option to disable audio bell

kitty/config.py

@@ -160,6 +160,7 @@ def to_layout_names(raw):
     'window_border_width': float,
     'wheel_scroll_multiplier': float,
     'visual_bell_duration': float,
+    'enable_audio_bell': to_bool,
     'click_interval': float,
     'mouse_hide_wait': float,
     'cursor_blink_interval': float,

kitty/kitty.conf

@@ -91,6 +91,9 @@ repaint_delay    10
 # seconds. Set to zero to disable.
 visual_bell_duration 0.0
 
+# Enable/disable the audio bell. Useful in environments that require silence.
+enable_audio_bell yes
+
 # The modifier keys to press when clicking with the mouse on URLs to open the URL
 open_url_modifiers ctrl+shift
 

kitty/window.py

@@ -108,11 +108,12 @@ def write_to_child(self, data):
         wakeup()
 
     def bell(self):
-        try:
-            with open('/dev/tty', 'wb') as f:
-                f.write(b'\007')
-        except EnvironmentError:
-            pass  # failure to beep is not critical
+        if self.opts.enable_audio_bell:
+            try:
+                with open('/dev/tty', 'wb') as f:
+                    f.write(b'\007')
+            except EnvironmentError:
+                pass  # failure to beep is not critical
         if self.opts.visual_bell_duration > 0:
             self.start_visual_bell_at = monotonic()
             glfw_post_empty_event()