bug#47746: pypi importer generates wrong pypi-uri without underscore

[Xinglu Chen]

On Tue, Apr 13 2021, Ricardo Wurmus wrote:

> When importing a package from Pypi whose name includes an 
> underscore, the importer will generate a pypi-uri expression where 
> the underscore has been replaced with a dash.

Hmm, I just grabbed a random package from PyPi, and the URI seems fine
to me.

--8<---------------cut here---------------start------------->8---
~/src/guix $ ./pre-inst-env guix import pypi angreal_data_science_project
Starting download of /tmp/guix-file.4MH43L
From
https://files.pythonhosted.org/packages/28/5a/6c77f8f5c2333ab2d3e83c27615358a0badcfeb6513a36079ba0fee78524/angreal_data_science_project-0.5.5.tar.gz...
 …_project-0.5.5.tar.gz  15KiB        378KiB/s 00:00 [##################] 100.0%

Starting download of /tmp/guix-file.hrC4cL
From
https://files.pythonhosted.org/packages/f4/18/e4747e2f3232ca1fbbd1286455fe57f3390a94b14c26a37dba72eb829523/angreal_data_science_project-0.5.5-py3-none-any.whl...
 …ect-0.5.5-py3-none-any.whl  28KiB   244KiB/s 00:00 [##################] 100.0%
(package
  (name "python-angreal-data-science-project")
  (version "0.5.5")
  (source
    (origin
      (method url-fetch)
      (uri (pypi-uri "angreal_data_science_project" version))
      (sha256
        (base32
          "1krvhwmlmv77j8w3sxaxlkmhd0xzmr24f4n873p00631lacwmpck"))))
  (build-system python-build-system)
  (home-page
    "https://gitlab.com/angreal/data-science-project";)
  (synopsis
    "An angreal template for data science projects.")
  (description
    "An angreal template for data science projects.")
  (license #f))
--8<---------------cut here---------------end--------------->8---

How would I reproduce the bug?