lxml with python-3.12.0a5

[Mats Wichmann]

On 2/23/23 06:03, Robin Becker wrote:
> I'm trying to test python-3.12.0a5 and need to install lxml.
> 
> My wheel build for lxml fails with errors like this
> 
> 
> src/lxml/etree.c: In function ‘__Pyx_PyIndex_AsSsize_t’:
> src/lxml/etree.c:270404:45: error: ‘PyLongObject’ {aka ‘struct 
> _longobject’} has no member named ‘ob_digit’
> 270404 |     const digit* digits = ((PyLongObject*)b)->ob_digit;
>         |                                             ^~
> 
> I'm using archlinux which has gcc 12.2.1. I tested and lxml will build 
> with 3.11.2.
> 
> I imagine this is part of ongoing changes to the python core, but 
> perhaps there's some simple workaround.
> 
> Anyone know how to get around this problem. I did try rebuilding the 
> cpython stuff using make, but that also failed.

I seem to always have trouble with lxml (which I know doesn't help).

The cause would seem to be this:

     GH-101291: Refactor the `PyLongObject` struct into object header 
and PyLongValue struct. (GH-101292)