The panel module for IRIX has been deprecated for removal in 3.0.
diff --git a/Lib/plat-irix5/panel.py b/Lib/plat-irix5/panel.py
index 12e62a5..fcfa56b 100755
--- a/Lib/plat-irix5/panel.py
+++ b/Lib/plat-irix5/panel.py
@@ -6,6 +6,9 @@
# most 'pnl' functions are transparently exported by 'panel',
# but dopanel() is overridden and you have to use this version
# if you want to use callbacks.
+from warnings import warnpy3k
+warnpy3k("the panel module has been removed in Python 3.0", stacklevel=2)
+del warnpy3k
import pnl