$ electrum
Error: No module named ‘aiorpcx’. Try ‘sudo python3 -m pip install <module-name>

I think a newer python version (e.g. 3.7) might be needed in order to get it to work as well as even after installing missing modules via pip locally the package does not run.

https://github.com/kyuupichan/electrumx/pull/760

The fix is to use a newer version.

$ pacman -Si pulseaudio
Repository      : extra
Name            : pulseaudio
Version         : 10.0-3.hyperbola1
Description     : A featureful, general-purpose sound server, with eudev support
Architecture    : x86_64
URL             : https://www.freedesktop.org/wiki/Software/PulseAudio/
Licenses        : GPL
Groups          : None
Provides        : None
Depends On      : libpulse=10.0-3.hyperbola1  rtkit  libltdl  speexdsp  tdb  orc  libsoxr  webrtc-audio-processing
Optional Deps   : pulseaudio-alsa: ALSA configuration (recommended)
Conflicts With  : None
Replaces        : pulseaudio-xen<=9.0
Download Size   : 1075.24 KiB
Installed Size  : 6259.00 KiB
Packager        : André Silva <emulatorman@hyperbola.info>
Build Date      : Tue 08 Aug 2017 03:36:29 AM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature

$ pacman -Si bigloo
Repository      : extra
Name            : bigloo
Version         : 4.3a-1
Description     : Fast scheme compiler
Architecture    : x86_64
URL             : http://www-sop.inria.fr/mimosa/fp/Bigloo/
Licenses        : GPL  LGPL
Groups          : None
Provides        : None
Depends On      : gmp  openssl  libunistring
Optional Deps   : java-environment
                  emacs
                  zip
                  sqlite
                  alsa-lib
                  flac
                  avahi
Conflicts With  : None
Replaces        : None
Download Size   : 13.46 MiB
Installed Size  : 78.14 MiB
Packager        : Juergen Hoetzel <juergen@archlinux.org>
Build Date      : Wed 03 May 2017 03:03:54 AM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature

$ pacman -Si efitools
Repository      : extra
Name            : efitools
Version         : 1.7.0.5.g0649468-1
Description     : Tools for manipulating UEFI secure boot platforms
Architecture    : x86_64
URL             : http://git.kernel.org/cgit/linux/kernel/git/jejb/efitools.git
Licenses        : GPL  LGPL2.1
Groups          : None
Provides        : None
Depends On      : openssl
Optional Deps   : None
Conflicts With  : None
Replaces        : prebootloader
Download Size   : 145.71 KiB
Installed Size  : 1081.00 KiB
Packager        : Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
Build Date      : Fri 24 Mar 2017 03:39:39 PM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature

$ pacman -Si perl-net-ssleay
Repository      : extra
Name            : perl-net-ssleay
Version         : 1.81-1
Description     : Perl extension for using OpenSSL
Architecture    : x86_64
URL             : http://search.cpan.org/dist/Net-SSLeay/
Licenses        : custom:BSD
Groups          : None
Provides        : net-ssleay
Depends On      : openssl  perl>=5.24  perl<5.25
Optional Deps   : None
Conflicts With  : None
Replaces        : net-ssleay
Download Size   : 203.96 KiB
Installed Size  : 744.00 KiB
Packager        : Antonio Rojas <arojas@archlinux.org>
Build Date      : Wed 03 May 2017 02:24:28 PM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature

In order to use LuaDNS service you’ll need a LuaDNS account and a Git repository.

Sign up for a free LuaDNS account here: https://api.luadns.com/signup
Currently we are supporting the following Git hosting services:
> GitHub
> Bitbucket

GitHub, as everybody knows, was acquired by Microsoft last year (2018)
https://news.microsoft.com/2018/06/04/microsoft-to-acquire-github-for-7-5-billion/

And Bitbucket, like GitHub, is a centralized non-free git service.

There are other packages made for GitHub which haven’t been removed, but as you were deleting the certbot-dns-* packages that depended on a US-based DNS provider company, I thought you may wanted to know this.

$ pacman -Si cyrus-sasl
Repository      : extra
Name            : cyrus-sasl
Version         : 2.1.26-10.hyperbola1
Description     : Cyrus saslauthd SASL authentication daemon, with OpenRC support
Architecture    : x86_64
URL             : https://www.cyrusimap.org/sasl/
Licenses        : custom
Groups          : None
Provides        : None
Depends On      : libsasl=2.1.26  krb5
Optional Deps   : None
Conflicts With  : None
Replaces        : None
Download Size   : 45.18 KiB
Installed Size  : 167.00 KiB
Packager        : André Silva <emulatorman@hyperbola.info>
Build Date      : Wed 16 Aug 2017 01:08:49 PM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature

$ pacman -Si mutt
Repository      : extra
Name            : mutt
Version         : 1.8.3-1.hyperbola2
Description     : Small but very powerful text-based mail client
Architecture    : x86_64
URL             : http://www.mutt.org/
Licenses        : GPL
Groups          : None
Provides        : None
Depends On      : gpgme  ncurses  openssl  libsasl  gdbm  libidn  mime-types  krb5
Optional Deps   : smtp-forwarder: to send mail
Conflicts With  : None
Replaces        : None
Download Size   : 1254.21 KiB
Installed Size  : 5317.00 KiB
Packager        : André Silva <emulatorman@hyperbola.info>
Build Date      : Mon 30 Oct 2017 08:21:31 PM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature

$ pacman -Si ntp
Repository      : extra
Name            : ntp
Version         : 4.2.8.p10-2.hyperbola1
Description     : Network Time Protocol reference implementation, with OpenRC support
Architecture    : x86_64
URL             : http://www.ntp.org/
Licenses        : custom
Groups          : None
Provides        : None
Depends On      : openssl  libcap  libedit
Optional Deps   : None
Conflicts With  : None
Replaces        : None
Download Size   : 1777.89 KiB
Installed Size  : 4402.00 KiB
Packager        : André Silva <emulatorman@hyperbola.info>
Build Date      : Sat 02 Sep 2017 03:52:06 PM -03
Validated By    : MD5 Sum  SHA-256 Sum  Signature