diff --git a/pkgs/development/python-modules/cwcwidth/default.nix b/pkgs/development/python-modules/cwcwidth/default.nix
new file mode 100644
index 00000000000..a17a8a936aa
--- /dev/null
+++ b/pkgs/development/python-modules/cwcwidth/default.nix
@@ -0,0 +1,34 @@
+{ lib, buildPythonPackage, fetchPypi, cython, pytestCheckHook }:
+
+buildPythonPackage rec {
+  pname = "cwcwidth";
+  version = "0.1.4";
+  format = "pyproject";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1azrphpkcyggg38xvkfb9dpc4xmmm90p02kf8dkqd4d6j5w96aj8";
+  };
+
+  nativeBuildInputs = [ cython ];
+
+  checkInputs = [ pytestCheckHook ];
+  # Hack needed to make pytest + cython work
+  # https://github.com/NixOS/nixpkgs/pull/82410#issuecomment-827186298
+  preCheck = ''
+    export HOME=$(mktemp -d)
+    cp -r $TMP/$sourceRoot/tests $HOME
+    pushd $HOME
+  '';
+  postCheck = "popd";
+
+  pythonImportsCheck = [ "cwcwidth" ];
+
+  meta = with lib; {
+    description = "Python bindings for wc(s)width";
+    homepage = "https://github.com/sebastinas/cwcwidth";
+    changelog = "https://github.com/sebastinas/cwcwidth/blob/main/CHANGELOG.md";
+    license = licenses.mit;
+    maintainers = with maintainers; [ eduardosm ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 032d6972654..f9e3ffa4263 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1609,6 +1609,8 @@ in {
 
   cvxpy = callPackage ../development/python-modules/cvxpy { };
 
+  cwcwidth = callPackage ../development/python-modules/cwcwidth { };
+
   cx_Freeze = callPackage ../development/python-modules/cx_freeze { };
 
   cx_oracle = callPackage ../development/python-modules/cx_oracle { };