{
  lib,
  appdirs,
  beautifulsoup4,
  buildPythonPackage,
  colorlog,
  fetchFromGitHub,
  git,
  jsonschema,
  lxml,
  markdown,
  python,
  requests,
  toml,
}:

let
  # NOTE This is needed to download & run another Python program internally in
  #      order to generate test cases for library-checker problems.
  pythonEnv = python.withPackages (
    ps: with ps; [
      colorlog
      jinja2
      markdown
      toml
    ]
  );
in
buildPythonPackage rec {
  pname = "online-judge-api-client";
  version = "10.10.1";
  format = "setuptools";

  src = fetchFromGitHub {
    owner = "online-judge-tools";
    repo = "api-client";
    rev = "refs/tags/v${version}";
    hash = "sha256-P0pIjd/YS155dSDpY/ekMp8HnJcM35waV7aoTQiEWHo=";
  };

  patches = [ ./fix-paths.patch ];
  postPatch = ''
    substituteInPlace onlinejudge/service/library_checker.py \
      --subst-var-by git               ${git} \
      --subst-var-by pythonInterpreter ${pythonEnv.interpreter}
  '';

  propagatedBuildInputs = [
    appdirs
    beautifulsoup4
    colorlog
    jsonschema
    lxml
    requests
    toml
  ];

  # Requires internet access
  doCheck = false;

  pythonImportsCheck = [
    "onlinejudge"
    "onlinejudge_api"
  ];

  meta = with lib; {
    description = "API client to develop tools for competitive programming";
    mainProgram = "oj-api";
    homepage = "https://github.com/online-judge-tools/api-client";
    license = licenses.mit;
    maintainers = with maintainers; [ sei40kr ];
  };
}