python3.pkgs.mdx-truly-sane-lists: init at 1.2

This is plugin for python-markdown library that is needed to build
documentation of python3.pkgs.pydantic.

pkgs/development/python-modules/mdx-truly-sane-lists/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, markdown
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "mdx_truly_sane_lists";
+  version = "1.2";
+
+  src = fetchFromGitHub {
+    owner = "radude";
+    repo = "mdx_truly_sane_lists";
+    rev = version;
+    sha256 = "1h8403ch016cwdy5zklzp7c6xrdyyhl4z07h97qzbafrbq07jyss";
+  };
+
+  propagatedBuildInputs = [ markdown ];
+
+  pythonImportsCheck = [ "mdx_truly_sane_lists" ];
+
+  checkPhase = ''
+    ${python.interpreter} mdx_truly_sane_lists/tests.py
+  '';
+
+  meta = with lib; {
+    description = "Extension for Python-Markdown that makes lists truly sane.";
+    longDescription = ''
+      Features custom indents for nested lists and fix for messy linebreaks and
+      paragraphs between lists.
+    '';
+    license = licenses.mit;
+    maintainers = with maintainers; [ kaction ];
+  };
+}

pkgs/top-level/python-packages.nix

@@ -5239,6 +5239,8 @@ in {
 
   md-toc = callPackage ../development/python-modules/md-toc { };
 
+  mdx-truly-sane-lists = callPackage ../development/python-modules/mdx-truly-sane-lists { };
+
   md2gemini = callPackage ../development/python-modules/md2gemini { };
 
   mdformat = callPackage ../development/python-modules/mdformat { };