Subject: Re: bug#60840: [PATCH 0/3] gnu: volctl: Update to 0.9.3.

From: Maxim Cournoyer <[email-masked]>
Date: Mon, 16 Jan 2023 12:06:19 -0500

Hi again,

Sergiu Ivanov <[email-masked]> writes:

>>>From b92cdb4ce99bc7ad45e0caba7f863db5931741db Mon Sep 17 00:00:00 2001
> From: Sergiu Ivanov <[email-masked]>
> Date: Sun, 15 Jan 2023 23:16:02 +0100
> Subject: [PATCH 2/3] gnu: packages: Add python-pulsectl.

[...]

> +(define-public python-pulsectl
> +  (package
> +    (name "python-pulsectl")
> +    (version "22.3.2")
> +    (source (origin
> +              (method url-fetch)
> +              (uri (pypi-uri "pulsectl" version))
> +              (sha256
> +               (base32
> +                "115ha1cwpd2r84ssnxdbr59hgs0jbx0lz3xpqli64kmxxqf4w5yc"))))
> +    (build-system python-build-system)
> +    (inputs (list pulseaudio))
> +    (arguments
> +     `(#:tests? #f
> +       #:phases
> +       (modify-phases %standard-phases
> +         (add-after 'unpack 'patch-path
> +           (lambda* (#:key inputs #:allow-other-keys)
> +             (let ((pulse (assoc-ref inputs "pulseaudio")))
> +               (substitute* "pulsectl/_pulsectl.py"
> +                 (("libpulse.so.0")
> +                  (string-append pulse "/lib/libpulse.so.0")))

Sorry, I forgot to mention in my previous reply: here, you could use
(search-input-file inputs "lib/libpulse.so.0"), which has the added
benefit of failing if the file cannot be found in the inputs arguments.

-- 
Thanks,
Maxim