def __init__(self, data=None):
"""
:param data: :class:`~glue.core.data.Data` object, or list of such objects
"""
super(DataCollection, self).__init__()
self._link_manager = LinkManager()
self._data = []
self.hub = None
self._subset_groups = []
self.register_to_hub(Hub())
self.extend(as_list(data or []))
self._sg_count = 0
def __init__(self, data=None):
super(DataCollection, self).__init__()
self._link_manager = LinkManager(self)
self._data = []
self.hub = None
self._disable_sync_link_manager = 0
self._subset_groups = []
self.register_to_hub(Hub())
self.extend(as_list(data or []))
self._sg_count = 0
self._link_manager.register_to_hub(self.hub)
