Tests are broken with Python 3.12 on Debian build

[goffi-contrib]

Hello,

I'm writing this ticket for the Debian developer maintaining txdbus on this distribution, for some reason they can't publish here.

The Debian build it failing due to some unpacking error: https://ci.debian.net/packages/t/txdbus/testing/s390x/49118708/

From the debian dev:

I guess it is about endianess. s390x is big endian, TTBOMK. Maybe the tests assume (or fallback to) little endian?

Thanks!

[goffi-contrib]

Note: here are the patches used in Debian to fix the issues: https://salsa.debian.org/python-team/packages/txdbus/-/tree/debian/master/debian/patches?ref_type=heads

[WhyNotHugo]

The error states:

 63s AssertionError: b'\x04(ii)\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00' != b'\x04(ii)\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x02' : Binary encoding differs from expected value

This definitely sound like the mismatch that one would see when assuming the opposite endianness.

[WhyNotHugo]

All the errors are quads of bytes in inverted order, so definitely an endiannes issue.

[goffi-contrib]

Hello. Is there any plan to fix it soon? The package will be removed from Debian testing because of this unfortunately. Thanks.

[cocagne]

Hopefully I can get to it this weekend. I don't currently have a Linux development machine though so I'll probably need to spin up a new VM. Can you recommend a distro with a 3.12 Python package? I've been out of the Linux game for a while so I'm not sure which distros have it available.

Tom

On Tue, Aug 13, 2024 at 3:44 AM Jérôme Poisson @.***> wrote:

Hello. Is there any plan to fix it soon? The package will be removed from Debian testing because of this unfortunately. Thanks.

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[goffi-contrib]

Thanks for your quick answer @cocagne .

According to distrowatch 3.12 is available on Debian testing (Trixie): https://distrowatch.com/table-mobile.php?distribution=debian

[WhyNotHugo]

Alpine 3.20 and ArchLinux both ship Python 3.12.