Hi,

>      (arguments (tryton-arguments "account"))
> -    (native-inputs
> -     `(("python-genshi" ,python-genshi)
> -       ("python-lxml" ,python-lxml)
> -       ("python-magic" ,python-magic)
> -       ("python-passlib" ,python-passlib)
> -       ("python-polib" ,python-polib)
> -       ("python-proteus" ,python-proteus)
> -       ("python-relatorio" ,python-relatorio)
> -       ("python-werkzeug" ,python-werkzeug)
> -       ("python-wrapt" ,python-wrapt)))
> +    (native-inputs `(,@%standard-trytond-native-inputs))

This can be done a litte simpler as
  (native-inputs %standard-trytond-native-inputs)
though it probably doesn't really matter and YMMV.

Greetings,
Maxime.