[mythtv] Lots of our python scripts are failing because of a broken version check on lxml

[Paul Harrison]

On 01/04/2025 20:12, Roland Ernst wrote:

>
>     On Tue, 1 Apr 2025 at 19:38, Paul Harrison <mythtv at mythqml.net> wrote:
>
>         The error is :-
>
>         ! Error - The installed version of the "lxml" python library
>         "libxml" version is too old.
>                  At least "libxml" version 2.7.2 must be installed.
>         Your version is (2.12.7).
>
>         The code in question looks like this example :-
>
>         https://github.com/MythTV/mythtv/blob/3016c13fef7e24136144c8648f3f844bd165978d/mythtv/programs/scripts/internetcontent/nv_python_libs/bbciplayer/bbciplayer_api.py#L73
>
>
>
>         My guess is these checks aren't really required these days so
>         can be removed or they need fixing to work with versions
>         numbers > 9?
>
>
>         Thoughts?
>
>
>         Paul H.
>
>
>
> Comparing tuples is much easier:
> $ python3
> Python 3.12.3 (main, Feb  4 2025, 14:48:35) [GCC 13.3.0] on linux
> >>> from lxml import etree
> >>> etree.LIBXML_VERSION
> (2, 9, 14)
> >>> type(etree.LIBXML_VERSION)
> <class 'tuple'>
> >>> etree.LIBXML_VERSION < (2, 7, 2)
> False
> >>>
> Roland
>

Yeah that would work. Is it likely that any current distro has libxml < 
2.7.2 though?  The comment in the code mentions testing with Ubuntu 9.10 
which is ancient.


Paul H.
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