nixpkgs/pkgs/development/python-modules/channels/default.nix

{ stdenv, buildPythonPackage, fetchPypi,
  asgiref, django, daphne
}:
buildPythonPackage rec {
  pname = "channels";
  version = "2.2.0";

  src = fetchPypi {
    inherit pname version;
    sha256 = "af7cdba9efb3f55b939917d1b15defb5d40259936013e60660e5e9aff98db4c5";
  };

  # Files are missing in the distribution
  doCheck = false;

  propagatedBuildInputs = [ asgiref django daphne ];

  meta = with stdenv.lib; {
    description = "Brings event-driven capabilities to Django with a channel system";
    license = licenses.bsd3;
    homepage = https://github.com/django/channels;
  };
}