Dependencies according to:
https://aur.archlinux.org/packages/magic-wormhole/

Installed packages are in a lines beginning with *
Locally removed packages that according to tests are not necessary
are in lines beginning with N and will not be uploaded initially.
these are: ply,libsodium,pyhamcrest,GeoIP,GeoiIP-python

magic_wormhole:
'python-click'
'python-humanize'
'python-tqdm'
'python-idna'
'python-cffi'
'python-hkdf'
'python-spake2'
'python-pynacl'
'python-service-identity'
'python-autobahn'
'python-txtorcon'

Order of building and installing is indicated below from top to bottom.
The packages between parenthesis are already installed when arriving as
the line where they are so indicated.

*click

*python-humanize

*tqdm

*idna

N		ply
*	pycparser
*	cffi

*python-hkdf

	(python-hkdf)
*python-spake2

N	libsodium
	(python-six)
	(python-cffi)
*pynacl

			(cffi)
*			asn1crypto
			(idna)
*		cryptography
		(openssl) # inclus par défault
		(python-six)
*	pyOpenSSL
*		pyasn1
*	pyasn1-modules
*	attrs
*service_identity

*		zope.interface
N		pyhamcrest
*		incremental # circular dep: python-twisted
*		hyperlink
*		Automat # circular dep: python-twisted
*		constantly
		(attrs)
*	python-twisted
		(cython) # inclus par défaut, modernisé
*	python-wsaccel
	(python-six)
	(cryptography)
	(python-cffi)
		(python-twisted)
		(python-six)
*	python-txaio
*python-autobahn

N		GeoIP
N	GeoIP-Python
	(python-twisted)
*python-txtorcon
*magic-wormhole