pythonPackages.systemdspawner: init at 0.14

nixos/modules/services/development/jupyterhub/default.nix

···
         this is a python file.
       '';
       example = literalExample ''
-         c.SystemdSpawner.memory = "8G"
-         c.SystemdSpawner.cpus = "2"
+         c.SystemdSpawner.mem_limit = '8G'
+         c.SystemdSpawner.cpu_limit = 2.0
       '';
     };
 

pkgs/development/python-modules/jupyterhub-systemdspawner/default.nix

···
+{ lib
+, buildPythonPackage
+, fetchPypi
+, jupyterhub
+, tornado
+, bash
+}:
+
+buildPythonPackage rec {
+  pname = "jupyterhub-systemdspawner";
+  version = "0.14";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "080dd9cd9292266dad35d1efc7aa1af0ed6993d15eadc79bd959d1ee273d1923";
+  };
+
+  propagatedBuildInputs = [
+    jupyterhub
+    tornado
+  ];
+
+  postPatch = ''
+    substituteInPlace systemdspawner/systemd.py \
+      --replace "/bin/bash" "${bash}/bin/bash"
+
+    substituteInPlace systemdspawner/systemdspawner.py \
+      --replace "/bin/bash" "${bash}/bin/bash"
+  '';
+
+  meta = with lib; {
+    description = "JupyterHub Spawner using systemd for resource isolation";
+    homepage = "https://github.com/jupyterhub/systemdspawner";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}

pkgs/top-level/python-packages.nix

···
 
   jupyterhub-ldapauthenticator = callPackage ../development/python-modules/jupyterhub-ldapauthenticator { };
 
+  jupyterhub-systemdspawner = callPackage ../development/python-modules/jupyterhub-systemdspawner {
+    inherit (pkgs) bash;
+  };
+
   kaggle = callPackage ../development/python-modules/kaggle { };
 
   keyring = if isPy3k then