python.pkgs.datashape: move expression

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

@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytest
+, mock
+, numpy
+, multipledispatch
+, dateutil
+}:
+
+buildPythonPackage rec {
+  pname = "datashape";
+  version = "0.5.2";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "2356ea690c3cf003c1468a243a9063144235de45b080b3652de4f3d44e57d783";
+  };
+
+  checkInputs = [ pytest mock ];
+  propagatedBuildInputs = [ numpy multipledispatch dateutil ];
+
+  checkPhase = ''
+    py.test datashape/tests
+  '';
+
+  meta = {
+    homepage = https://github.com/ContinuumIO/datashape;
+    description = "A data description language";
+    license = lib.licenses.bsd2;
+    maintainers = with lib.maintainers; [ fridh ];
+  };
+}