{ lib, buildPythonPackage, fetchPypi, zope_interface, pyrsistent, boltons
, hypothesis, testtools, pytest }:
buildPythonPackage rec {
  pname = "eliot";
  version = "1.7.0";

  src = fetchPypi {
    inherit pname version;
    sha256 = "0ylyycf717s5qsrx8b9n6m38vyj2k8328lfhn8y6r31824991wv8";
  };

  postPatch = ''
    substituteInPlace setup.py \
      --replace "boltons >= 19.0.1" boltons
    # depends on eliot.prettyprint._main which we don't have here.
    rm eliot/tests/test_prettyprint.py

    # Fails intermittently.
    substituteInPlace eliot/tests/test_validation.py \
      --replace "def test_omitLoggerFromActionType" "def xtest_omitLoggerFromActionType"
  '';

  checkInputs = [ testtools pytest hypothesis ];
  propagatedBuildInputs = [ zope_interface pyrsistent boltons ];

  meta = with lib; {
    homepage = https://github.com/itamarst/eliot/;
    description = "Logging library that tells you why it happened";
    license = licenses.asl20;
  };
}