def __init__(self, **kwargs):
        if not self.SUPPORT_CLOSE_ON_EXIT and 'close_on_exit' in kwargs:
            raise TypeError('close_on_exit')
        if not self.SUPPORT_RETURN_DICT and kwargs in 'python_return_dict':
            raise TypeError('python_return_dict')

        self._python_return_dict = kwargs.get('python_return_dict', False)
        self.kwargs = kwargs
        self.drives = []
        self.running = False
        self.closed = False
        self.mounts = []
        self.files = {}
        self.auginit = False
        self.root_mounted = False
        self.backend_settings = None
        self.trace_enabled = False
        self.verbose_enabled = False
        self.event_callback = None
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/tests/unit/virt/disk/vfs/fakeguestfs.py/GuestFS.__init__/swapped operands of `in`