gnu: python-pymdown-extensions: Update to 10.16.1.

* gnu/packages/python-xyz.scm (python-pymdown-extensions): Update to 10.16.1.
[source]: Switch to git-fetch.
[build-system]: Switch to pyproject-build-system.
[native-inputs]: Add python-hatchling, python-pytest, python-pyyaml.
[description]: Improve style.

Signed-off-by: jgart <jgart@dismail.de>

gnu/packages/python-xyz.scm

@@ -2701,24 +2701,27 @@ Java objects.")
 (define-public python-pymdown-extensions
   (package
     (name "python-pymdown-extensions")
-    (version "8.1.1")
+    (version "10.16.1")
     (source
      (origin
-       (method url-fetch)
-       (uri
-        (pypi-uri "pymdown-extensions" version))
+       (method git-fetch)
+       (uri (git-reference
+              (url "https://github.com/facelessuser/pymdown-extensions")
+              (commit version)))
+       (file-name (git-file-name name version))
        (sha256
-        (base32 "0d8pdndrl1kj105lq7r6kw2dnhcvll6h2qs07w71mcpi7gx728v3"))))
-    (build-system python-build-system)
-    ;; FIXME: "AssertionError: False is not true"
+        (base32 "0r36nk1ppq1wrgb1lcy9asp9872xr0gbhxrjw7dpa8lp6m7nqb9k"))))
+    (build-system pyproject-build-system)
+    ;; XXX: A lot of HTML tests fail with negligible discrepancies.
     (arguments
-     `(#:tests? #f))
-    (propagated-inputs
-     (list python-markdown))
+     (list #:tests? #f))
+    (native-inputs (list python-hatchling python-pytest python-pyyaml))
+    (propagated-inputs (list python-markdown))
     (home-page "https://github.com/facelessuser/pymdown-extensions")
     (synopsis "Extension pack for Python Markdown")
-    (description "PyMdown Extensions is a collection of extensions for Python
-Markdown.  All extensions are found under the module namespace of pymdownx.")
+    (description
+     "PyMdown Extensions is a collection of extensions for Python Markdown.
+All extensions are found under the module namespace of pymdownx.")
     (license license:expat)))
 
 (define-public python-plotext