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Prepare tkinter for tcl 8.7/9.0 and tk 8.7 #104568
Description
@chrstphrchvz Chrisotpher Chavev, who did similar work preparing Perl for these anticipated releases, has opened several issues and PRs to do the the same for tkinter. Likely more will follow until 8.7.0 is released.
This issue is only for tracking these. All PRs should be attached to other issues.
Most of the changes are to tests. We can backport these to 3.11. Even if it is not completely ready for 8.7 when our bug-fixing ends, it will give Linux distributors a head start should they end up distributing both 3.11 and tcl/tk 8.7 simultaneously. We can deal with non-test code changes as they are needed. Anything not backported should be noted below.
- Tkinter: C API changes are needed for Tcl 8.7 and 9.0 value types #103194
Includes some general comments about the situation and _tkinter.FromObj PR. - Tk 8.7: TIP 577 breaks tkinter.Menu.index() #103685
- TIP 538 prevents building Tkinter against Tcl 8.7 built with bundled libtommath #103839
gh-103839: Allow building Tkinter against Tcl 8.7 without external libtommath #103842 not backported to 3.11. - Tkinter fails to build with Tcl 9.0 due to
Tcl_AppInit()undeclared #104363 - Tkinter uses deprecated functions
mp_to_unsigned_bin_n()andmp_unsigned_bin_size()#104399 - Tkinter: test_getint incompatible with Tcl 9.0 #104411
- Tkinter: Tk 8.7 quotes pathnames in certain error messages #104494
- Tkinter, IDLE: Future Tcl and Tk can have differing version/patchlevel #104496
- Tkinter: Tk 8.7 alphabetizes options in certain error messages #104497
- IDLE: completions toplevel blank on Tk Aqua 8.7 #104499
- Certain Tkinter tests fail on Tk 8.7 due to TIP 577 #104855
- Tkinter spinbox test failures on Tk 8.7 #104856
- Tkinter: incompatible pointer types warnings when built with Tcl 9 #112672
- IDLE uses incorrect screen dimension units #120104
- Fix tkinter.ttk with Tcl/Tk 9.0 #120211
- Add tests for new Tk widget options #120873
Activity
terryjreedy commentedon May 20, 2023
@chrstphrchvz Did you get the email from Zach Ware about triaging?
chrstphrchvz commentedon Dec 3, 2023
See also gh-112672
serhiy-storchaka commentedon Jul 11, 2026
All the tracked PRs are merged (the checklist above is complete). Tcl/Tk never released 8.7 — it went straight to 9.0, and now 9.1, both supported — so there's nothing left to track here.
The 8.7/9.0 test adaptations were even backported to 3.13 (gh-128846, GH-153484), and support for Tk 9.1 continued under gh-145736.
Closing as completed.
ned-deily commentedon Jul 11, 2026
For the record, Tcl/Tk 9.1 is currently in beta and so has not yet officially released and might change. So we should be a bit cautious about saying that we support 9.1 already.