Filip Lajszczak schreef op za 08-05-2021 om 15:28 [+0200]:
> * gnu/packages/python-xyz.scm (python-pythonanywhere): New variable.
> [...]
> +   (arguments
> +    `(#:phases (modify-phases %standard-phases
> +      (add-before 'check 'change-home
> +       (lambda _
> +        (setenv "HOME" "/tmp") #t))

Phases do not need to return #t anymore; the warning you get if you 
remove it is misleading.  The warning will disappear once core-updates
is merged.

> +      (replace 'check
> +       (lambda _
> +        (invoke "pytest" "-m" "not slowtest") #t)))))

To support "guix build --without-tests" and cross-compilation, make this

> +      (replace 'check
> +       (lambda* (#:key tests? #:allow-other-keys)
> +        (when tests?
> +         (invoke "pytest" "-m" "not slowtest"))))

The native-inputs and propagated-inputs seem about right to me,
but I haven't tested.

Greetings,
Maxime