gistfile1.txt

{ stdenv, fetchurl, python3, libmsgpack, setuptools }:

let
  version = "0.4.2";
in
stdenv.mkDerivation rec {
  name = "msgpack-python-${version}";

  src = fetchurl {
    url = "https://pypi.python.org/packages/source/m/msgpack-python/msgpack-python-${version}.tar.gz";
    sha256 = "0476e8fdd79e5b648b349bd0edebf06e41271ee29421ef7adb12cdbe55dac2a9";
  };

  installPhase = ''
    python3 setup.py install --prefix=$out
  '';

  buildInputs = [ python3 libmsgpack setuptools ];

  meta = {
    description = "MessagePack <http://msgpack.org/> is a fast, compact binary serialization format, suitable for similar data to JSON. This package provides CPython bindings for reading and writing MessagePack data";
  };
}