HI,

I'm trying out guix and thought : "why not update a package ?". Trying out multiqc requires python-pedantic... but that was not that bad (and I'm pleasanly surprised).
There are 2 issues :

1. only one test is failing for python-pedantic (see log below). What to do there ?
2. hundred of packages depend of python-pedanticl. Not sure how not to break all of these.

The current state of affair is the singe patch attached to this mail. Maybe that's too hard for a first contribution !

Thanks,

Alexis

8<---------------------------

=========================== short test summary info ============================
FAILED tests/test_networks.py::test_any_url_invalid[https://example.org more-url_parsing-Input should be a valid URL, invalid domain character] - AssertionError: assert {'type': 'url_parsing', 'msg': 'Input should be a valid URL, invalid international domain name'} == {'type': 'url_parsing', 'msg': 'Input should be a valid URL, invalid domain character'}

  Common items:
  {'type': 'url_parsing'}
  Differing items:
  {'msg': 'Input should be a valid URL, invalid international domain name'} != {'msg': 'Input should be a valid URL, invalid domain character'}

  Full diff:
    {
  -     'msg': 'Input should be a valid URL, invalid domain character',
  ?                                                         ^^ ^^^^ -
  +     'msg': 'Input should be a valid URL, invalid international domain name',
  ?                                                  ++++++++++++++       ^ ^
        'type': 'url_parsing',
    }
========== 1 failed, 5029 passed, 1027 skipped, 15 xfailed in 17.97s ===========