import py.test as pytest
def pytest_addoption(parser):
parser.addoption("--skipslow", action="store_true", help="skip slow test cases marked with my_slow_test_marker")
def pytest_runtest_setup(item):
if 'my_slow_test_marker' in item.keywords and item.config.getoption("--skipslow"):
pytest.skip("skipped because of --skipslow option")