zimoun <zimon.toutoune@gmail.com> writes:

>> Can you paste the full package definition?
>
> Well, I have tried with and without the 'arguments'.
>
> --8<---------------cut here---------------start------------->8---
> (define-public python-attrs-strict
>   (package
>     (name "python-attrs-strict")
>     (version "0.1.0")
>     (source
>       (origin
>         (method url-fetch)
>         (uri (pypi-uri "attrs_strict" version))
>         (sha256
>           (base32
>             "0nldyv053xiv9aaysjszgisi9d9d87f5l2jf3rhl3xm9c9spar96"))))
>     (build-system python-build-system)
>     (native-inputs
>      `(("python-pytest" ,python-pytest)
>        ("python-pluggy" ,python-pluggy)))
>     (propagated-inputs
>       `(("python-attrs" ,python-attrs)
>         ("python-typing" ,python-typing)))

Does it make a difference if you remove python-typing?  That
functionality was merged into Python 3.5, perhaps it expects an older
version of 'collections.abc'.