Can you replace `text=True` with `universal_newlines=True` and see if it helps?
A very similar problem was addressed in
https://trac.sagemath.org/ticket/30740 - but apparently it was not
enough.
On Tue, Oct 13, 2020 at 9:06 AM Clemens Heuberger
<clemens.heuber...@aau.at> wrote:
>
> On a Linux Mint 19.3 Tricia machine, I get the following error on 9.2.rc1:
>
> ./sage -t -p --all --long --logfile=logs/ptestlong.log
> Traceback (most recent call last):
> File "/local/cheuberg/local/sage-9.2.rc1/src/bin/sage-runtests", line 181,
> in
> <module>
> DC = DocTestController(options, args)
> File
> "/local/cheuberg/local/sage-9.2.rc1/local/lib/python3.6/site-packages/sage/doctest/control.py",
> line 371, in __init__
> options.optional.update(system.name for system in package_systems())
> File
> "/local/cheuberg/local/sage-9.2.rc1/local/lib/python3.6/site-packages/sage/features/__init__.py",
> line 376, in package_systems
> proc = run('sage-guess-package-system', shell=True, stdout=PIPE,
> stderr=PIPE, text=True, check=True)
> File "/usr/lib/python3.6/subprocess.py", line 423, in run
> with Popen(*popenargs, **kwargs) as process:
> TypeError: __init__() got an unexpected keyword argument 'text'
> Makefile:190: recipe for target 'ptestlong' failed
> make: *** [ptestlong] Error 1
>
>
> Indeed, the text=True parameter of subprocess.run is available in python3.7
> only; this build apparently uses the system python3.6.
>
> At the moment I do not know why I did not have similar problems on my other
> linux mint 19.3 machines.
>
>
> Am 11.10.20 um 01:43 schrieb Volker Braun:
> > As always, you can get the latest beta version from the "develop" git
> > branch.
> > Alternatively, the self-contained source tarball is at
> > http://www.sagemath.org/download-latest.html
> >
> >
> > 8eec238a73 (tag: 9.2.rc1, trac/develop) Updated SageMath version to 9.2.rc1
> > a569b88f02 Trac #30740: Fix sage.feature.package_systems for Python 3.6
> > f6250c2682 (tag: 9.2.rc0) Updated SageMath version to 9.2.rc0
> >
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