commit bfdeaa37b3df7466624c17f9450d2bd1c3d95edf
author Zackery Spytz <zspytz@gmail.com> Thu Jan 30 18:55:42 2020 -0700
committer GitHub <noreply@github.com> Thu Jan 30 20:55:42 2020 -0500
tree edc63f65219cf7c25425e19946bc48b396dbf489
parent 46874c26ee1fc752e2e6930efa1d223b2351edb8

bpo-38792: Remove IDLE shell calltip before new prompt. (#17150)

Previously, a calltip might be left after SyntaxError, KeyboardInterrupt, or Shell Restart.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Tal Einat <taleinat+github@gmail.com>

Lib/idlelib/editor.py

diff --git a/Lib/idlelib/editor.py b/Lib/idlelib/editor.py
index c9f1a16..04c786d 100644
--- a/Lib/idlelib/editor.py
+++ b/Lib/idlelib/editor.py
@@ -328,7 +328,7 @@
         text.bind("<<run-module>>", scriptbinding.run_module_event)
         text.bind("<<run-custom>>", scriptbinding.run_custom_event)
         text.bind("<<do-rstrip>>", self.Rstrip(self).do_rstrip)
-        ctip = self.Calltip(self)
+        self.ctip = ctip = self.Calltip(self)
         text.bind("<<try-open-calltip>>", ctip.try_open_calltip_event)
         #refresh-calltip must come after paren-closed to work right
         text.bind("<<refresh-calltip>>", ctip.refresh_calltip_event)