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Re: Question about (properties `((python2-variant . , (delay XXX)))) an

From: Ludovic Courtès
Subject: Re: Question about (properties `((python2-variant . , (delay XXX)))) and name resolution
Date: Wed, 20 Jul 2016 12:17:53 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Danny Milosavljevic <address@hidden> skribis:

> I tried that, but I still can't do
>   $ guix package -i ptpython-2
> because:
>   guix package: error: ptpython: package not found for version 2


>       (name "ptpython-2"))))

In the former command-line package specification syntax, which is still
supported but deprecated, “ptpython-2” was taken to mean “version 2 of
package ‘ptpython’”.  Because of this, you cannot refer to this
“ptpython-2” package from the command-line (except with -e).

The solution is to call it differently, like “ptpython2”.

Eventually (I’d say after 0.10.1 is released) we’ll remove support for
the old syntax and the problem will be gone.


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