Description

serhiy-storchaka

opened on Mar 10, 2026

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I build Python with the latest versions of Tk 8.7, 9.0 and 9.1. Multiple Tkinter tests fail (mostly the configure tests). Last time the tests were updated for pre-release version of Tk 8.7, this can be reason. Also, some fine details can be changed in bugfix releases.

Looking at the code, the past attempts to fix tests for 8.7 and 9.0 make some cases to be just omitted for new Tk versions, or replaced by tests for already covered cases. I tried to fix this too, and simplify the tests code.

Linked PRs

• gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 #145738
• [3.14] gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (GH-145738) #145841
• [3.14] gh-145736: Fix test_tkinter test_configure_values test case backport miss for Tk 9. #149435

Activity

1. serhiy-storchaka

   added

   testsTests in the Lib/test dirTests in the Lib/test dir

   topic-tkinter

   3.14bugs and security fixesbugs and security fixes

   3.15bugs and security fixesbugs and security fixes

   on Mar 10, 2026
2. serhiy-storchaka

   added a commit that references this issue on Mar 10, 2026

   pythongh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1

   77f1905
3. ned-deily commented on Mar 10, 2026

   

   ned-deily

   on Mar 10, 2026

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   For the record, Tcl/Tk 8.7 was never officially released, with development abandoned after 8.7a5 (June 18, 2021). So we shouldn't worry about whether tests fail for it.
4. serhiy-storchaka commented on Mar 10, 2026

   

   serhiy-storchaka

   on Mar 10, 2026

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   Ah, that's why the tests mostly used 9.0 as the threshold. Anyway, after making the tests passing on all four versions, keeping support for 8.7 is not a large burden.
5. StanFromIreland

   added

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

   on Mar 10, 2026
6. serhiy-storchaka

   added 3 commits that reference this issue on Mar 11, 2026

   gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (GH-145738)

   77d6d5d

   [3.14] pythongh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (py…

   e003800

   [3.14] gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (GH-145738)…

   a778fd6
7. serhiy-storchaka

   closed this as completedon Mar 12, 2026
8. ljfp

   added a commit that references this issue on Apr 25, 2026

   pythongh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (pythonGH-…

   3d5cd22
9. ned-deily

   added 2 commits that reference this issue on May 5, 2026

   pythongh-145736: Fix test_tkinter test_configure_values test case bac…

   0acbeae

   [3.14] gh-145736: Fix test_tkinter test_configure_values test case ba…

   ff0aa91
10. serhiy-storchaka

    added a commit that references this issue on Jul 11, 2026

    [3.13] gh-128846: Make tkinter tests robust against Tcl/Tk 9.0 (GH-15…

    59e183c

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