Fixed in https://trac.sagemath.org/ticket/31344

On Thursday, February 4, 2021 at 4:30:45 AM UTC-8 Dima Pasechnik wrote:

> Probably https://bugs.python.org/issue19733 is still relevant?
> Note messages
>
> test_image (tkinter.test.test_ttk.test_widgets.ButtonTest) ... skipped
> 'crashes with Cocoa Tk (issue19733)'
>
> one gets by running
>
> python3 runtktests.py
>
> Even though 19733 was closed, it's not clear whether they tested on macOS 
> 11.
>
>
> in
>
> /usr/local/Cellar/python@3.9/3.9.1_7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/tkinter/test/
>
> On Thu, Feb 4, 2021 at 4:32 AM Zachary Scherr <zsc...@gmail.com> wrote:
> >
> > I found something possibly relevant at
> >
> > https://bugs.python.org/issue42691
> >
> > although there the complaint was that Homebrew built python against 
> system tcl and the suggestion was that Homebrew use its own tcl-tk. It 
> seems that Homebrew is correctly using its own tcl-tk
> > since the line
> >
> > 5 libtcl8.6.dylib 0x000000032998c72e AtForkPrepare + 38
> >
> > says that python is using tcl 8.6 and system tcl is 8.5. No idea what's 
> going on, but it might be good to try to produce a minimal reproducible 
> example to show to the python/tcl people.
> > On Wednesday, February 3, 2021 at 12:11:54 PM UTC-5 dim...@gmail.com 
> wrote:
> >>
> >>
> >>
> >> On Wed, 3 Feb 2021, 17:03 John H Palmieri, <jhpalm...@gmail.com> wrote:
> >>>
> >>> Right, thank you. Python 3.9 builds successfully.
> >>>
> >>> On Monday, February 1, 2021 at 7:14:29 PM UTC-8 zsc...@gmail.com 
> wrote:
> >>>>
> >>>> For the --with-system-python3=no, I don't know what the problem is 
> but I think it was fixed by upgrading to python 3.9 in 
> https://trac.sagemath.org/ticket/30589
> >>>>
> >>>> On Monday, February 1, 2021 at 9:45:37 PM UTC-5 John H Palmieri wrote:
> >>>>>
> >>>>> On OS X Big Sur (intel), as of the most recent Xcode and homebrew, I 
> am currently unable to build Sage with either homebrew's Python or with 
> `./configure --with-system-python3=no`.
> >>>>>
> >>>>> - With homebrew's Python, actually Sage builds but the documentation 
> does not (similar problems on both Big Sur and Catalina), ending with
> >>
> >>
> >> yes, I see this too. (with latest Homebrew python 3.9.)
> >>
> >> What exactly is broken there?
> >>
> >>
> >>>>>
> >>>>>
> >>>>> 
> ------------------------------------------------------------------------
> >>>>> 0 signals.cpython-39-darwin.so 0x000000010cd40542 print_backtrace + 
> 66
> >>>>> 1 signals.cpython-39-darwin.so 0x000000010cd44167 sigdie + 39
> >>>>> 2 signals.cpython-39-darwin.so 0x000000010cd4406a 
> cysigs_signal_handler + 282
> >>>>> 3 libsystem_platform.dylib 0x00007fff203bcd7d _sigtramp + 29
> >>>>> 4 ??? 0x000000000000003f 0x0 + 63
> >>>>> 5 libtcl8.6.dylib 0x000000032998c72e AtForkPrepare + 38
> >>>>> 6 libsystem_pthread.dylib 0x00007fff203781a3 
> _pthread_atfork_prepare_handlers + 90
> >>>>> 7 libSystem.B.dylib 0x00007fff2a575934 libSystem_atfork_prepare + 11
> >>>>> 8 libsystem_c.dylib 0x00007fff2025bb1b fork + 12
> >>>>> 9 _posixsubprocess.cpython-39-darwin. 0x000000010b63db89 
> subprocess_fork_exec + 1573
> >>>>> 10 Python 0x000000010af10904 cfunction_call + 127
> >>>>> 11 Python 0x000000010aedffa3 _PyObject_MakeTpCall + 266
> >>>>> 12 Python 0x000000010af88027 call_function + 455
> >>>>> ...
> >>>>> 157 Python 0x000000010afcf10f Py_BytesMain + 42
> >>>>> 158 libdyld.dylib 0x00007fff20393621 start + 1
> >>>>> 
> ------------------------------------------------------------------------
> >>>>> Unhandled SIGILL: An illegal instruction occurred.
> >>>>> This probably occurred because a *compiled* module has a bug
> >>>>> in it and is not properly wrapped with sig_on(), sig_off().
> >>>>> Python will now terminate.
> >>>>> 
> ------------------------------------------------------------------------
> >>>>> ...
> >>>>> File 
> "/Users/palmieri/Desktop/Sage/sage_builds/TESTING/sage-9.3.beta6/local/lib/python3.9/site-packages/sage_setup/docbuild/utils.py",
>  
> line 221, in reap_workers
> >>>>> w = bring_out_yer_dead(w, task, exitcode)
> >>>>> File 
> "/Users/palmieri/Desktop/Sage/sage_builds/TESTING/sage-9.3.beta6/local/lib/python3.9/site-packages/sage_setup/docbuild/utils.py",
>  
> line 157, in bring_out_yer_dead
> >>>>> raise WorkerDiedException(
> >>>>> sage_setup.docbuild.utils.WorkerDiedException: worker for 
> ('reference/misc', 'en', 'html', {}) died with non-zero exit code -4
> >>>>>
> >>>>> - With `./configure --with-system-python3=no`, Python fails to build 
> (on Big Sur only; it succeeds on Catalina), saying
> >>>>>
> >>>>> ModuleNotFoundError: No module named 'readline'
> >>>>>
> >>>>> and
> >>>>>
> >>>>> ModuleNotFoundError: No module named 'zlib'
> >>>>>
> >>>>> Any suggestions?
> >>>>>
> >>>>> --
> >>>>> John
> >>>>>
> >>>>>
> >>> --
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> >
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