@pytest.fixture(scope='session')
def backend(request):
    backend, lazy = request.param
    # Initialise the backend
    try:
        op2.init(backend=backend, lazy_evaluation=(lazy == 'lazy'))
    # Skip test if initialisation failed
    except:
        pytest.skip(backend % 'Backend %s is not available')
    return backend
dataset/ETHPy150Open OP2/PyOP2/test/conftest.py/backend/swapped operands of `%`