pythonPackages.dataclasses: init at 0.5

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

@@ -0,0 +1,21 @@
+{ stdenv, buildPythonPackage, fetchPypi, isPy36 }:
+
+buildPythonPackage rec {
+  pname = "dataclasses";
+  version = "0.5";
+
+  # backport only works on Python 3.6, and is in the standard library in Python 3.7
+  disabled = !isPy36;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "07lgn1k56sqpw7yfzv5a6mwshsgaipjawflgyr6lrkryjl64481z";
+  };
+
+  meta = with stdenv.lib; {
+    description = "An implementation of PEP 557: Data Classes";
+    homepage = "https://github.com/ericvsmith/dataclasses";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ catern ];
+  };
+}