pythonPackages.locket: Move to own file

pkgs/development/python-modules/locket/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, buildPythonPackage, fetchPypi, pytest }:
+
+buildPythonPackage rec {
+  pname = "locket";
+  version = "0.2.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1d4z2zngrpqkrfhnd4yhysh66kjn4mblys2l06sh5dix2p0n7vhz";
+  };
+
+  buildInputs = [ pytest ];
+
+  # weird test requirements (spur.local>=0.3.7,<0.4)
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Locket implements a lock that can be used by multiple processes provided they use the same path.";
+    homepage = https://github.com/mwilliamson/locket.py;
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ teh ];
+  };
+}