Hi fanquake,
Why not use the PyPi source if it includes the tests?
It is what the importer would have produced:
$ guix import pypi altgraph
Starting download of /tmp/guix-file.mH76On
From https://files.pythonhosted.org/packages/de/a8/7145824cf0b9e3c28046520480f207df47e927df83aa9555fb47f8505922/altgraph-0.17.4.tar.gz...
…17.4.tar.gz 47KiB 835KiB/s 00:00 ▕██████████████████▏ 100.0%
Starting download of /tmp/guix-file.j6I6jB
From https://files.pythonhosted.org/packages/4d/3f/3bc3f1d83f6e4a7fcb834d3720544ca597590425be5ba9db032b2bf322a2/altgraph-0.17.4-py2.py3-none-any.whl...
…2.py3-none-any.whl 21KiB 1.8MiB/s 00:00 ▕██████████████████▏ 100.0%
(package
(name "python-altgraph")
(version "0.17.4")
(source
(origin
(method url-fetch)
(uri (pypi-uri "altgraph" version))
(sha256
(base32 "01j48np3g50g6insjkszsz0vifwlm6gspria5vdwlkbciywznnhv"))))
(build-system pyproject-build-system)
(home-page "https://altgraph.readthedocs.io")
(synopsis "Python graph (network) package")
(description "Python graph (network) package")
all best,
jgart