Description

terryjreedy

opened on Jul 22, 2026

Issue body actions

Followup to gh-153741 which made IDLE aware of x11 wheel event change in 8.7 and 9.0. Move definition of x11_buttons from test_sidebar to util. Move def wheel_event from tree to util and move its test from test_tree to test_util. (I expect tree.py to eventially be replaced by ttk.treeview.) Make various other adjustments

There are unneeded bindings of buttons 4 and 5 in sidebar. We might be able to handle the needed binding with wheel_event with a second argument. I will leave this for a second PR.

Linked PRs

• gh-154511: IDLE - Update mousewheel event handling  #154512
• gh-154511: Consolidate IDLE's mouse wheel handling in util #156974
• [3.15] gh-154511: Consolidate IDLE's mouse wheel handling in util (GH-156974) #157021
• [3.14] gh-154511: Consolidate IDLE's mouse wheel handling in util (GH-156974) #157022
• [3.13] gh-154511: Consolidate IDLE's mouse wheel handling in util (GH-156974) #157023

Activity

1. terryjreedy

   added

   topic-IDLE

   on Jul 22, 2026
2. terryjreedy

   added this to IDLE Issueson Jul 22, 2026
3. StanFromIreland

   added

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

   type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

   on Jul 23, 2026
4. serhiy-storchaka

   added 6 commits that reference this issue on Sep 6, 2026

   gh-154511: Consolidate IDLE's mouse wheel handling in util (GH-156974)

   57594aa

   pythongh-154511: Set the scaling with the Tcl command in test_fix_sca…

   321518b

   pythongh-154511: Set the scaling with the Tcl command in test_fix_sca…

   c4c1d77

   pythongh-154511: Set the scaling with the Tcl command in test_fix_sca…

   b242d1c

   [3.13] gh-154511: Consolidate IDLE's mouse wheel handling in util (GH…

   19693af

   [3.14] gh-154511: Consolidate IDLE's mouse wheel handling in util (GH…

   a9152fb
5. clin1234

   added a commit that references this issue on Sep 12, 2026

   pythongh-154511: Consolidate IDLE's mouse wheel handling in util (pyt…

   597b67b
6. terryjreedy

   added a commit that references this issue on Oct 9, 2026

   [3.15] gh-154511: Consolidate IDLE's mouse wheel handling in util (GH…

   240efc0

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