Description

StanFromIreland

opened on Feb 12, 2025

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Bug report

Bug description:

The sub menu does not close automatically and when I switch windows with it open it stays on top of whatever window I've opened. The screenshot below shows the behavior.

Occurs in both 3.13 and main branch. Running Fedora 41 GNOME

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Activity

1. StanFromIreland

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Feb 12, 2025
2. terryjreedy

   added

   topic-tkinter

   OS-linux

   on Feb 12, 2025
3. terryjreedy commented on Feb 12, 2025

   

   terryjreedy

   on Feb 12, 2025

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   Everything between 'behavior.' and 'Occurs in' is the included image. I don't see anything like this on Windows or macOS. The menu goes away when focus goes away, so is gone when returning focus to IDLE. So I am marking this as tkinter on Linux issue.

   Reacted by Stan Ulbrych
4. jepler commented on May 19, 2026

   

   jepler

   on May 19, 2026

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   I tried reproducing this on Debian 13 ("Trixie") with the XFCE desktop environment running in X11. It defaults to a click-to-focus mode. The Python version is the system-packaged Python 3.13.5 with tcl/tk 8.6.16.

   I opened the File menu, then clicked on another application. The File menu disappeared and was no longer visible, and the other application was brought to the front.

   When the menu is shown, hotkeys such as alt+tab are not acted on by the window manager and no change occurs.

   In "focus follows mouse" mode, the pop-up menu inhibits shifts in focus as long as it is displayed. A click outside the menu area (including on another application window) dismisses it without moving focus.

   It could simply be a gnome bug? I recommend creating a simple reproducer (in wish, even) and raising it as a bug with Gnome. Even if they don't consider it to be a bug, they might have some insight into whether an application can avoid or modify the behavior.
5. terryjreedy commented on May 22, 2026

   

   terryjreedy

   on May 22, 2026

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   @serhiy-storchaka Could this be a tk bug specific to a subset of linuxes?
6. StanFromIreland commented on May 23, 2026

   

   StanFromIreland

   on May 23, 2026

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   Based on the discussion on the Discord, it may be an issue specific to the display server (Wayland).

   Reacted by Serhiy Storchaka
7. serhiy-storchaka commented on May 23, 2026

   

   serhiy-storchaka

   on May 23, 2026

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   I confirm this on Ubuntu 26.04 KDE Wayland. I cannot reproduce this on X11. Years ago I observed similar bugs on X11. I think this is a Tk bug.
8. terryjreedy

   changed the title [-]IDLE submenu stays open if you switch windows[/-] [+]Tkinter (IDLE) submenu on Wayland stays open if you switch windows[/+] on May 23, 2026
9. picnixz

   added

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   extension-modulesC modules in the Modules dirC modules in the Modules dir

   and removed

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   on May 25, 2026

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