@SibrenVasse: I believe that the problem is not that the ipaddress dependency is missing in this PKGBUILD. Since Python 3.3, ipaddress is shipped as a core module [1], so it is, in fact, installed for every Python user on Arch Linux.

The actual problem is that python-ifaddr explicitly depends on the former (third-party, separately installed) ipaddress module, which isn’t available as such with Python 3.3 and newer (as it’s already contained in the vanilla Python installation). Hence, the dependency checker will fail to find ipaddress even though it’s implicitly available.

I think that the right solution is to restrict the ipaddress install dependency of ifaddr to Python earlier than 3.3 in the project’s setup.py. I proposed a pull request in the upstream repository [2], so let’s see what the maintainers say.

[1] https://docs.python.org/3/library/ipaddress.html
[2] https://github.com/pydron/ifaddr/pull/12

The upstream maintainer merged my fix and released a patched version, python-ifaddr 0.1.5. This should resolve the seemingly missing dependency reported here :).

That does seems to fix my problem. Thanks for diving into the issue! :)

@SibrenVasse: Glad to hear that my patch worked for you as well :).