diff --git a/pkgs/development/python-modules/inlinestyler/default.nix b/pkgs/development/python-modules/inlinestyler/default.nix
new file mode 100644
index 000000000000..c4cc47fabfa4
--- /dev/null
+++ b/pkgs/development/python-modules/inlinestyler/default.nix
@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+
+# dependencies
+, cssutils
+, lxml
+, requests
+
+# tests
+, ipdb
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "inlinestyler";
+  version = "0.2.5";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "dlanger";
+    repo = "inlinestyler";
+    rev = version;
+    hash = "sha256-9TKXqW+5SiiNXnHW2lOVh3zhFhodM7a1UB2yXsEuX3I=";
+  };
+
+  propagatedBuildInputs = [
+    cssutils
+    lxml
+    requests
+  ];
+
+  pythonImportsCheck = [
+    "inlinestyler"
+  ];
+
+  nativeCheckInputs = [
+    ipdb
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    description = "A simple CSS inliner for generating HTML email messages";
+    homepage = "https://github.com/dlanger/inlinestyler";
+    changelog = "https://github.com/dlanger/inlinestyler/blob/${src.rev}/CHANGELOG";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ hexa ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index ac4340a0aa1b..e451dbd0b58e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4859,6 +4859,8 @@ self: super: with self; {
 
   inkex = callPackage ../development/python-modules/inkex { };
 
+  inlinestyler = callPackage ../development/python-modules/inlinestyler { };
+
   inotify = callPackage ../development/python-modules/inotify { };
 
   inotify-simple = callPackage ../development/python-modules/inotify-simple { };