Re: Python and gzip

[ludo@gnu.org (Ludovic Courtès)]

Andreas Enge <andreas@enge.fr> skribis:

> While trying to add a package to compression.scm, I just added the line
>   #:use-module (gnu packages python)

[...]

> 2667: 9 [define-module* (gnu packages python) #:filename ...]
> 2642: 8 [resolve-imports ((# # #) (#) (#) (#) ...)]
> 2580: 7 [resolve-interface (gnu packages base) #:select ...]
> 2505: 6 [#<procedure 2698940 at ice-9/boot-9.scm:2493:4 (name #:optional 
> autoload version #:key ensure)> # ...]
> 2772: 5 [try-module-autoload (gnu packages base) #f]
> 2111: 4 [save-module-excursion #<procedure 2e6b6c0 at 
> ice-9/boot-9.scm:2773:17 ()>]
> 2783: 3 [#<procedure 2e6b6c0 at ice-9/boot-9.scm:2773:17 ()>]
> In unknown file:
>    ?: 2 [primitive-load-path "gnu/packages/base" #f]
> In gnu/packages/base.scm:
> 1055: 1 [#<procedure 2ecc020 ()>]
> In ice-9/boot-9.scm:
>  106: 0 [#<procedure 2825b40 at ice-9/boot-9.scm:97:6 (thrown-k . args)> 
> unbound-variable ...]
>
> ice-9/boot-9.scm:106:20: In procedure #<procedure 2825b40 at 
> ice-9/boot-9.scm:97:6 (thrown-k . args)>:
> ice-9/boot-9.scm:106:20: In procedure module-lookup: Unbound variable: gzip

You’ve created a circular dependency between ‘python’ and ‘compression’.

The fix is to arrange so that there’s no circular dependency.  The
easiest way to achieve that is to move the package in question to its
own module.

HTH,
Ludo’.