FIX: Don't set_wmclass on GTK3

timhoffm · timhoffm · commit 0ad6ce04d5cc · 2024-10-29T10:18:40.000+01:00
The method is deprecated, and according to docs should just not be used: https://docs.gtk.org/gtk3/method.Window.set_wmclass.html The docs suggest gtk_window_set_role(), but AFAICS this is only helpful if one want to place the window in a certain position when restarting a session. I assume we don't want/need that.
diff --git a/lib/matplotlib/backends/_backend_gtk.py b/lib/matplotlib/backends/_backend_gtk.py
@@ -143,7 +143,6 @@ def __init__(self, canvas, num):
         super().__init__(canvas, num)
 
         if gtk_ver == 3:
-            self.window.set_wmclass("matplotlib", "Matplotlib")
             icon_ext = "png" if sys.platform == "win32" else "svg"
             self.window.set_icon_from_file(
                 str(cbook._get_data_path(f"images/matplotlib.{icon_ext}")))
