{ lib, stdenv, buildPythonPackage, fetchPypi, isPy3k, mock, unittest2, six, futures }:

buildPythonPackage rec {
  pname = "trollius";
  version = "2.2.post1";

  src = fetchPypi {
    inherit pname version;
    sha256 = "06s44k6pcq35vl5j4i2pgkpb848djal818qypcvx44gyn4azjrqn";
  };

  checkInputs = [ mock ] ++ lib.optional (!isPy3k) unittest2;

  propagatedBuildInputs = [ six ] ++ lib.optional (!isPy3k) futures;

  patches = [
    ./tests.patch
  ];

  disabled = isPy3k;

  postPatch = ''
    # Overrides PYTHONPATH causing dependencies not to be found
    sed -i -e "s|test_env_var_debug|skip_test_env_var_debug|g" tests/test_tasks.py
  '' + lib.optionalString stdenv.isDarwin ''
    # Some of the tests fail on darwin with `error: AF_UNIX path too long'
    # because of the *long* path names for sockets
    sed -i -e "s|test_create_ssl_unix_connection|skip_test_create_ssl_unix_connection|g" tests/test_events.py
    sed -i -e "s|test_create_unix_connection|skip_test_create_unix_connection|g" tests/test_events.py
    sed -i -e "s|test_create_unix_server_existing_path_nonsock|skip_test_create_unix_server_existing_path_nonsock|g" tests/test_unix_events.py
    sed -i -e "s|test_create_unix_server_existing_path_sock|skip_test_create_unix_server_existing_path_sock|g" tests/test_unix_events.py
    sed -i -e "s|test_create_unix_server_ssl_verified|skip_test_create_unix_server_ssl_verified|g" tests/test_events.py
    sed -i -e "s|test_create_unix_server_ssl_verify_failed|skip_test_create_unix_server_ssl_verify_failed|g" tests/test_events.py
    sed -i -e "s|test_create_unix_server_ssl|skip_test_create_unix_server_ssl|g" tests/test_events.py
    sed -i -e "s|test_create_unix_server|skip_test_create_unix_server|g" tests/test_events.py
    sed -i -e "s|test_open_unix_connection_error|skip_test_open_unix_connection_error|g" tests/test_streams.py
    sed -i -e "s|test_open_unix_connection_no_loop_ssl|skip_test_open_unix_connection_no_loop_ssl|g" tests/test_streams.py
    sed -i -e "s|test_open_unix_connection|skip_test_open_unix_connection|g" tests/test_streams.py
    sed -i -e "s|test_pause_reading|skip_test_pause_reading|g" tests/test_subprocess.py
    sed -i -e "s|test_read_pty_output|skip_test_read_pty_output|g" tests/test_events.py
    sed -i -e "s|test_start_unix_server|skip_test_start_unix_server|g" tests/test_streams.py
    sed -i -e "s|test_unix_sock_client_ops|skip_test_unix_sock_client_ops|g" tests/test_events.py
    sed -i -e "s|test_write_pty|skip_test_write_pty|g" tests/test_events.py
  '';

  meta = with stdenv.lib; {
    description = "Port of the asyncio project to Python 2.7";
    homepage = https://github.com/vstinner/trollius;
    license = licenses.asl20;
    maintainers = with maintainers; [ ];
  };
}