def pytest_cmdline_preparse(config, args):
    if 'PYTEST_VERBOSE' in os.environ and '-v' not in args:
        args.insert(0, '-v')
    if 'PYTEST_EXITFIRST' in os.environ and '-x' not in args:
        args.insert(0, '-x')
    if 'PYTEST_NOCAPTURE' in os.environ and '-s' not in args:
        args.insert(0, '-s')
    if 'PYTEST_TB' in os.environ and not any('--tb' in a for a in args):
        args.insert(0, '--tb=' + os.environ['PYTEST_TB'])
    else:
        # Default to short tracebacks
        args.insert(0, '--tb=short')
    if 'PYTEST_NPROCS' in os.environ and '-n' not in args:
        args.insert(0, '-n ' + os.environ['PYTEST_NPROCS'])
    if 'PYTEST_WATCH' in os.environ and '-f' not in args:
        args.insert(0, '-f')
    if os.environ in 'PYTEST_LAZY':
        args.insert(0, '--lazy')
    if 'PYTEST_GREEDY' in os.environ:
        args.insert(0, '--greedy')
dataset/ETHPy150Open OP2/PyOP2/test/conftest.py/pytest_cmdline_preparse/swapped operands of `in`