Afternoon Edouard,

Edouard Klein 写道：
> I don't understand why guix feels the need to try to build it.

So Guix isn't trying to build any packages (yet), just complaining 
that you're still using python2-prompt-toolkit-1 somewhere.  I'm 
inclined to believe it:

> The log says:
> (repl-version 0 1 1)
> Generating package cache for 
> '/gnu/store/zdv0j5x5dfwr4b6bh8jc9vp818lvd38g-profile'...
> (exception unbound-variable (value #f) (value "Unbound variable: 
> ~S") (value (python2-prompt-toolkit-1)) (value #f))

Does ‘find -name \*.scm -exec grep python2-prompt-toolkit-1 {} +’ 
in your channel's directory return anything useful?

Are there any uncommitted changes to your channel(s) that ‘guix 
pull’ can't see yet?

> I grepped for 'guix-package-cache' and tried to read the code in
> guix/channels.scm, but I don't understand.

It's a simple cache of package metadata from your channel(s) to 
speed up future Guix operations.  I doubt it's related to your 
problem; it's just what happened to fail first.

Kind regards,

T G-R